Search Results for compound
Searching compound for chrysophanol acid returned 14236 results.
Displaying compounds 6951 - 6975 of 14236 in total
(2-aminoethoxy)[(2R)-3-(docosa-7,10,13,16,19-pentaenoyloxy)-2-(octadeca-1,11-dien-1-yloxy)propoxy]phosphinic acid
Matched iupac: … aminoethoxy)[(2R)-3-(docosa-7,10,13,16,19-pentaenoyloxy)-2-(octadeca-1,11-dien-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
[(2R)-3-[(9Z)-hexadec-9-enoyloxy]-2-(octadecanoyloxy)propoxy]({[(1s,3R)-2,3,4,5,6-pentahydroxycyclohexyl]oxy})phosphinic acid
Matched iupac: … -9-enoyloxy]-2-(octadecanoyloxy)propoxy]({[(1s,3R)-2,3,4,5,6-pentahydroxycyclohexyl]oxy})phosphinic acid …
Matched description: … PIs contain almost exclusively stearic acid at carbon 1 and arachidonic acid at carbon 2. ... While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... Phosphatidylinositols are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone …
Matched description: … PIs contain almost exclusively stearic acid at carbon 1 and arachidonic acid at carbon 2. ... While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... Phosphatidylinositols are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone …
(2-aminoethoxy)[(2R)-3-(hexadec-1-en-1-yloxy)-2-(hexadec-9-enoyloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-3-(hexadec-1-en-1-yloxy)-2-(hexadec-9-enoyloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-3-(hexadec-1-en-1-yloxy)-2-(octadeca-9,12-dienoyloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-3-(hexadec-1-en-1-yloxy)-2-(octadeca-9,12-dienoyloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-3-(hexadec-1-en-1-yloxy)-2-(icosa-8,11,14,17-tetraenoyloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-3-(hexadec-1-en-1-yloxy)-2-(icosa-8,11,14,17-tetraenoyloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(docosa-7,10,13,16-tetraenoyloxy)-3-(hexadec-1-en-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(docosa-7,10,13,16-tetraenoyloxy)-3-(hexadec-1-en-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(hexadec-9-enoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(hexadec-9-enoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(icosa-5,8,11-trienoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(icosa-5,8,11-trienoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(docos-13-enoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(docos-13-enoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(docosa-13,16-dienoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(docosa-13,16-dienoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(docosa-7,10,13,16-tetraenoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(docosa-7,10,13,16-tetraenoyloxy)-3-(octadec-1-en-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(octadec-9-enoyloxy)-3-(octadeca-1,11-dien-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(octadec-9-enoyloxy)-3-(octadeca-1,11-dien-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-3-(octadeca-1,11-dien-1-yloxy)-2-(octadeca-9,12-dienoyloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-3-(octadeca-1,11-dien-1-yloxy)-2-(octadeca-9,12-dienoyloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(icosa-8,11,14,17-tetraenoyloxy)-3-(octadeca-1,11-dien-1-yloxy)propoxy]phosphinic acid
Matched iupac: … aminoethoxy)[(2R)-2-(icosa-8,11,14,17-tetraenoyloxy)-3-(octadeca-1,11-dien-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(docosa-7,10,13,16-tetraenoyloxy)-3-(octadeca-1,11-dien-1-yloxy)propoxy]phosphinic acid
Matched iupac: … aminoethoxy)[(2R)-2-(docosa-7,10,13,16-tetraenoyloxy)-3-(octadeca-1,11-dien-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-3-(octadeca-1,9-dien-1-yloxy)-2-(tetradec-9-enoyloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-3-(octadeca-1,9-dien-1-yloxy)-2-(tetradec-9-enoyloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(hexadec-9-enoyloxy)-3-(octadeca-1,9-dien-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(hexadec-9-enoyloxy)-3-(octadeca-1,9-dien-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-3-(octadeca-1,9-dien-1-yloxy)-2-(octadeca-6,9,12-trienoyloxy)propoxy]phosphinic acid
Matched iupac: … 2-aminoethoxy)[(2R)-3-(octadeca-1,9-dien-1-yloxy)-2-(octadeca-6,9,12-trienoyloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-3-(octadeca-1,9-dien-1-yloxy)-2-(octadeca-9,12,15-trienoyloxy)propoxy]phosphinic acid
Matched iupac: … -aminoethoxy)[(2R)-3-(octadeca-1,9-dien-1-yloxy)-2-(octadeca-9,12,15-trienoyloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(icos-11-enoyloxy)-3-(octadeca-1,9-dien-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(icos-11-enoyloxy)-3-(octadeca-1,9-dien-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(icosa-11,14-dienoyloxy)-3-(octadeca-1,9-dien-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(icosa-11,14-dienoyloxy)-3-(octadeca-1,9-dien-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-2-(docosa-13,16-dienoyloxy)-3-(octadeca-1,9-dien-1-yloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-2-(docosa-13,16-dienoyloxy)-3-(octadeca-1,9-dien-1-yloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
(2-aminoethoxy)[(2R)-3-(octadeca-1,9-dien-1-yloxy)-2-(tetracos-15-enoyloxy)propoxy]phosphinic acid
Matched iupac: … (2-aminoethoxy)[(2R)-3-(octadeca-1,9-dien-1-yloxy)-2-(tetracos-15-enoyloxy)propoxy]phosphinic acid …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
Matched description: … While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the ... They mostly have palmitic or stearic acid on carbon 1 and a long chain unsaturated fatty acid (e.g. 18 ... The ethanolamine is then transferred from CDP-ethanolamine to phosphatidic acid to yield PE. …
FDB029077
490-46-0
[(2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-1-benzopyran-3-yl]oxidanesulfonic acid
Matched iupac: … [(2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3,4-dihydro-2H-1-benzopyran-3-yl]oxidanesulfonic acid …
FDB029185
59-02-9
7-[(2R)-6-hydroxy-2,5,7,8-tetramethyl-3,4-dihydro-2H-1-benzopyran-2-yl]-4-methylheptanoic acid
Matched iupac: … 7-[(2R)-6-hydroxy-2,5,7,8-tetramethyl-3,4-dihydro-2H-1-benzopyran-2-yl]-4-methylheptanoic acid …
Matched description: … The metabolites a-tocopheronic acid and its lactone, known as the Simon metabolites, are generally believed …
Matched description: … The metabolites a-tocopheronic acid and its lactone, known as the Simon metabolites, are generally believed …