Search Results for compound
Searching compound for 3-Hydroxy-4-pentenenitrile returned 63618 results.
Displaying compounds 5901 - 5925 of 63618 in total
(2R)-1-[(7Z,10Z,13Z,16Z)-docosa-7,10,13,16-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propan-2-yl tetracosanoate
Matched name: … TG(22:4(7Z,10Z,13Z,16Z)/24:0/18:3(9Z,12Z,15Z)) …
Matched iupac: … (2R)-1-[(7Z,10Z,13Z,16Z)-docosa-7,10,13,16-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy …
Matched iupac: … (2R)-1-[(7Z,10Z,13Z,16Z)-docosa-7,10,13,16-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy …
(2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(tetradecanoyloxy)propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate
Matched name: … TG(18:3(9Z,12Z,15Z)/14:0/20:4(8Z,11Z,14Z,17Z)) …
Matched iupac: … (2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(tetradecanoyloxy)propyl (8Z,11Z,14Z,17Z)-icosa- …
Matched iupac: … (2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(tetradecanoyloxy)propyl (8Z,11Z,14Z,17Z)-icosa- …
(2S)-2-(hexadecanoyloxy)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate
Matched name: … TG(18:3(9Z,12Z,15Z)/16:0/20:4(8Z,11Z,14Z,17Z)) …
Matched iupac: … (2S)-2-(hexadecanoyloxy)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17 …
Matched iupac: … (2S)-2-(hexadecanoyloxy)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17 …
(2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(octadecanoyloxy)propyl (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoate
Matched name: … TG(18:3(9Z,12Z,15Z)/18:0/18:4(6Z,9Z,12Z,15Z)) …
Matched iupac: … (2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(octadecanoyloxy)propyl (6Z,9Z,12Z,15Z)-octadeca …
Matched iupac: … (2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(octadecanoyloxy)propyl (6Z,9Z,12Z,15Z)-octadeca …
(2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(octadecanoyloxy)propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate
Matched name: … TG(18:3(9Z,12Z,15Z)/18:0/20:4(8Z,11Z,14Z,17Z)) …
Matched iupac: … (2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(octadecanoyloxy)propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17 …
Matched iupac: … (2S)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]-2-(octadecanoyloxy)propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17 …
(2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propan-2-yl icosanoate
Matched name: … TG(18:3(9Z,12Z,15Z)/20:0/18:4(6Z,9Z,12Z,15Z)) …
Matched iupac: … (2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy …
Matched iupac: … (2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy …
(2S)-2-(icosanoyloxy)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate
Matched name: … TG(18:3(9Z,12Z,15Z)/20:0/20:4(8Z,11Z,14Z,17Z)) …
Matched iupac: … (2S)-2-(icosanoyloxy)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17 …
Matched iupac: … (2S)-2-(icosanoyloxy)-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17 …
(2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propan-2-yl (11Z,14Z)-icosa-11,14-dienoate
Matched name: … TG(18:3(9Z,12Z,15Z)/20:2n6/18:4(6Z,9Z,12Z,15Z)) …
Matched iupac: … (2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy …
Matched iupac: … (2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy …
(2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy]propan-2-yl (8Z,11Z,14Z)-icosa-8,11,14-trienoate
Matched name: … TG(18:3(9Z,12Z,15Z)/20:3n6/18:4(6Z,9Z,12Z,15Z)) …
Matched iupac: … (2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy …
Matched iupac: … (2S)-1-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyloxy]-3-[(9Z,12Z,15Z)-octadeca-9,12,15-trienoyloxy …
FDB005977
29536-44-5
2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-6,7-dimethoxy-4H-chromen-4-one
Matched iupac: … 2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-6,7-dimethoxy-4H-chromen-4-one …
Matched description: … group at the 3-position. ... Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl …
Matched description: … group at the 3-position. ... Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl …
FDB022591
78101-73-2
{[(2S,3R,4S,5S)-5-(2-amino-6-oxo-6,9-dihydro-3H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy}[({[({[({[(2R,3S,4R,5R)-5-(2-amino-6-oxo-6,9-dihydro-3H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy}(hydroxy)phosphoryl)oxy](hydroxy)phosphoryl}oxy)(hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl)oxy]phosphinic acid
Matched iupac: … )phosphoryl)oxy](hydroxy)phosphoryl}oxy)(hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl)oxy]phosphinic acid ... {[({[({[(2R,3S,4R,5R)-5-(2-amino-6-oxo-6,9-dihydro-3H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy}(hydroxy …
Matched description: … The vasoactive nucleotides that can be detected in human plasma contain short(n=2-3)and long(n=4-6)polyphosphate …
Matched description: … The vasoactive nucleotides that can be detected in human plasma contain short(n=2-3)and long(n=4-6)polyphosphate …
[3-({[(2R)-2-(hexadec-9-enoyloxy)-3-(octadeca-9,12-dienoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2-hydroxypropoxy][(2R)-3-(icosa-5,8,11,14-tetraenoyloxy)-2-(icosa-8,11,14-trienoyloxy)propoxy]phosphinic acid
Matched name: … CL(20:4(5Z,8Z,11Z,14Z)/20:3(8Z,11Z,14Z)/18:2(9Z,12Z)/16:1(9Z)) …
Matched iupac: … [3-({[(2R)-2-(hexadec-9-enoyloxy)-3-(octadeca-9,12-dienoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2-hydroxypropoxy ... ][(2R)-3-(icosa-5,8,11,14-tetraenoyloxy)-2-(icosa-8,11,14-trienoyloxy)propoxy]phosphinic acid …
Matched description: … CL(20:4(5Z,8Z,11Z,14Z)/20:3(8Z,11Z,14Z)/18:2(9Z,12Z)/16:1(9Z)) is a cardiolipin (CL). …
Matched iupac: … [3-({[(2R)-2-(hexadec-9-enoyloxy)-3-(octadeca-9,12-dienoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2-hydroxypropoxy ... ][(2R)-3-(icosa-5,8,11,14-tetraenoyloxy)-2-(icosa-8,11,14-trienoyloxy)propoxy]phosphinic acid …
Matched description: … CL(20:4(5Z,8Z,11Z,14Z)/20:3(8Z,11Z,14Z)/18:2(9Z,12Z)/16:1(9Z)) is a cardiolipin (CL). …
[3-({[(2R)-2-(hexadec-9-enoyloxy)-3-(octadeca-9,12-dienoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2-hydroxypropoxy][(2R)-2-(icosa-5,8,11-trienoyloxy)-3-(icosa-8,11,14,17-tetraenoyloxy)propoxy]phosphinic acid
Matched name: … CL(20:4(8Z,11Z,14Z,17Z)/20:3(5Z,8Z,11Z)/18:2(9Z,12Z)/16:1(9Z)) …
Matched iupac: … [3-({[(2R)-2-(hexadec-9-enoyloxy)-3-(octadeca-9,12-dienoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2-hydroxypropoxy ... ][(2R)-2-(icosa-5,8,11-trienoyloxy)-3-(icosa-8,11,14,17-tetraenoyloxy)propoxy]phosphinic acid …
Matched description: … CL(20:4(8Z,11Z,14Z,17Z)/20:3(5Z,8Z,11Z)/18:2(9Z,12Z)/16:1(9Z)) is a cardiolipin (CL). …
Matched iupac: … [3-({[(2R)-2-(hexadec-9-enoyloxy)-3-(octadeca-9,12-dienoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2-hydroxypropoxy ... ][(2R)-2-(icosa-5,8,11-trienoyloxy)-3-(icosa-8,11,14,17-tetraenoyloxy)propoxy]phosphinic acid …
Matched description: … CL(20:4(8Z,11Z,14Z,17Z)/20:3(5Z,8Z,11Z)/18:2(9Z,12Z)/16:1(9Z)) is a cardiolipin (CL). …
FDB022486
1022-31-7
2-amino-4-(2-formamidophenyl)-4-oxobutanoic acid
Matched synonyms: … 3-(2-Formamidobenzoyl)alanine ... 3-(N-formylanthraniloyl)-Alanine …
Matched iupac: … 2-amino-4-(2-formamidophenyl)-4-oxobutanoic acid …
Matched iupac: … 2-amino-4-(2-formamidophenyl)-4-oxobutanoic acid …
(4S)-4-[(2-hydroxyhexadecanoyl)oxy]-4-(trimethylazaniumyl)butanoate
Matched iupac: … (4S)-4-[(2-hydroxyhexadecanoyl)oxy]-4-(trimethylazaniumyl)butanoate …
[(2R)-2-hydroxy-3-(octadec-9-enoyloxy)propoxy]phosphonic acid
Matched synonyms: … (2-Hydroxy-3-onooxypropyl) (e)-octadec-9-enoate ... (2-Hydroxy-3-onooxypropyl) (e)-octadec-9-enoic acid ... (2-hydroxy-3-phosphonooxypropyl) (E)-octadec-9-enoate …
Matched iupac: … [(2R)-2-hydroxy-3-(octadec-9-enoyloxy)propoxy]phosphonic acid …
Matched iupac: … [(2R)-2-hydroxy-3-(octadec-9-enoyloxy)propoxy]phosphonic acid …
FDB022459
69992-87-6
{[(2S,4S,5R,6S)-5-acetamido-6-{[(2S,3R,4S,5S,6R)-2-{[(2R,3S,4R,5R,6S)-5-acetamido-4-hydroxy-2-[(sulfooxy)methyl]-6-{[(2R,3R,4S,5S,6R)-2,3,5-trihydroxy-6-[(sulfooxy)methyl]oxan-4-yl]oxy}oxan-3-yl]oxy}-3,5-dihydroxy-6-[(sulfooxy)methyl]oxan-4-yl]oxy}-4-hydroxyoxan-2-yl]methoxy}sulfonic acid
Matched iupac: … {[(2S,4S,5R,6S)-5-acetamido-6-{[(2S,3R,4S,5S,6R)-2-{[(2R,3S,4R,5R,6S)-5-acetamido-4-hydroxy-2-[(sulfooxy ... )methyl]-6-{[(2R,3R,4S,5S,6R)-2,3,5-trihydroxy-6-[(sulfooxy)methyl]oxan-4-yl]oxy}oxan-3-yl]oxy}-3,5-dihydroxy ... -6-[(sulfooxy)methyl]oxan-4-yl]oxy}-4-hydroxyoxan-2-yl]methoxy}sulfonic acid …
FDB019387
75645-27-1
N-(2-{[3,5-dihydroxy-2-(hydroxymethyl)-6-{[4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}oxan-4-yl]oxy}-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl)ethanimidic acid
Matched synonyms: … 2-Acetamido-2-deoxy-b-D-glucopyranosyl-(1->3)-b-D-galactopyranosyl-(1->4)-D-glucose ... O-2-(acetylamino)-2-Deoxy-beta-D-glucopyranosyl-(1->3)-O-beta-D-galactopyranosyl-(1->4)-D-glucose ... O-2-(acetylamino)-2-Deoxy-beta-delta-glucopyranosyl-(1->3)-O-beta-delta-galactopyranosyl-(1->4)-delta-glucose …
Matched iupac: … N-(2-{[3,5-dihydroxy-2-(hydroxymethyl)-6-{[4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}oxan-4-yl] ... oxy}-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl)ethanimidic acid …
Matched iupac: … N-(2-{[3,5-dihydroxy-2-(hydroxymethyl)-6-{[4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}oxan-4-yl] ... oxy}-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl)ethanimidic acid …
FDB001560
83668-89-7
5-hydroxy-7-methoxy-8-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-2-(4-{[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}phenyl)-4H-chromen-4-one
Matched synonyms: … Isoswertisin 4'-rhamnoside ... Isoswertisin 4'-O-rhamnoside …
Matched name: … Isoswertisin 4'-rhamnoside …
Matched iupac: … 5-hydroxy-7-methoxy-8-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-2-(4-{[(2S,3R,4R ... ,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}phenyl)-4H-chromen-4-one …
Matched description: … Isoswertisin 4'-rhamnoside can be found in oat, which makes isoswertisin 4'-rhamnoside a potential biomarker ... Isoswertisin 4'-rhamnoside is a member of the class of compounds known as flavonoid o-glycosides. ... compounds containing a carbohydrate moiety which is O-glycosidically linked to the 2-phenylchromen-4- …
Matched name: … Isoswertisin 4'-rhamnoside …
Matched iupac: … 5-hydroxy-7-methoxy-8-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-2-(4-{[(2S,3R,4R ... ,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}phenyl)-4H-chromen-4-one …
Matched description: … Isoswertisin 4'-rhamnoside can be found in oat, which makes isoswertisin 4'-rhamnoside a potential biomarker ... Isoswertisin 4'-rhamnoside is a member of the class of compounds known as flavonoid o-glycosides. ... compounds containing a carbohydrate moiety which is O-glycosidically linked to the 2-phenylchromen-4- …
FDB018191
126254-76-0
(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-{[(2R,3S,4S,5R,6S)-3,4,5-trihydroxy-6-{[5-hydroxy-2-(4-hydroxyphenyl)-4-oxo-4H-chromen-7-yl]oxy}oxan-2-yl]methoxy}oxane-2-carboxylic acid
Matched iupac: … (2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-{[(2R,3S,4S,5R,6S)-3,4,5-trihydroxy-6-{[5-hydroxy-2-(4-hydroxyphenyl ... )-4-oxo-4H-chromen-7-yl]oxy}oxan-2-yl]methoxy}oxane-2-carboxylic acid …
FDB016565
74367-97-8
ethyl 3-methyl-3-(4-methylphenyl)oxirane-2-carboxylate
Matched synonyms: … Ethyl 3-methyl-3-(4-methylphenyl)oxiranecarboxylate ... Ethyl 3-methyl-3-(p-tolyl)glycidate ... Ethyl 2,3-epoxy-3-p-tolylbutyrate …
Matched iupac: … ethyl 3-methyl-3-(4-methylphenyl)oxirane-2-carboxylate …
Matched iupac: … ethyl 3-methyl-3-(4-methylphenyl)oxirane-2-carboxylate …
3-hydroxy-2,2-dimethyl-3-({2-[(2-{[(2E,6S)-2,6,10-trimethylundec-2-enoyl]sulfanyl}ethyl)carbamoyl]ethyl}carbamoyl)propyl ({[(2R,3R,4S,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonatooxy)oxolan-2-yl]methyl phosphonato}oxy)phosphonate
Matched iupac: … }carbamoyl)propyl ({[(2R,3R,4S,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonatooxy)oxolan-2-yl] ... 3-hydroxy-2,2-dimethyl-3-({2-[(2-{[(2E,6S)-2,6,10-trimethylundec-2-enoyl]sulfanyl}ethyl)carbamoyl]ethyl …
FDB023021
17181-54-3
[(1,3-dihydroxypropan-2-yl)oxy]phosphonic acid
Matched synonyms: … 1,3-Hydroxy-2-propyl dihydrogen ate ... 1,3-Hydroxy-2-propyl dihydrogen ic acid ... 2-HYDROXY-1-(hydroxymethyl)ethyl dihydrogen ATE …
FDB022737
76824-35-6
3-[({2-[(diaminomethylidene)amino]-1,3-thiazol-4-yl}methyl)sulfanyl]-N'-sulfamoylpropanimidamide
Matched synonyms: … N-Sulfamoyl-3-((2-guanidinothiazol-4-yl)methylthio)propionamide ... N-Sulphamoyl-3-((2-guanidinothiazol-4-yl)methylthio)propionamide ... (1-amino-3-(((2-((Diaminomethylene)amino)-4-thiazolyl)methyl)thio)propylidene)sulfamide …
Matched iupac: … 3-[({2-[(diaminomethylidene)amino]-1,3-thiazol-4-yl}methyl)sulfanyl]-N'-sulfamoylpropanimidamide …
Matched iupac: … 3-[({2-[(diaminomethylidene)amino]-1,3-thiazol-4-yl}methyl)sulfanyl]-N'-sulfamoylpropanimidamide …
(2S,4S,5R)-2-{[(1S,2R)-1-[(3R,4S,6S)-6-carboxy-6-{[(2R,3S,4R,5R,6S)-3-{[(2S,3R,4R,5R,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-(2-oxopropyl)oxan-2-yl]oxy}-6-{[(2R,3S,4R,5R,6R)-4,5-dihydroxy-6-{[(2S,3R)-3-hydroxy-2-(octadec-11-enamido)octadecyl]oxy}-2-(hydroxymethyl)oxan-3-yl]oxy}-5-hydroxy-2-(hydroxymethyl)oxan-4-yl]oxy}-3-acetamido-4-hydroxyoxan-2-yl]-1,3-dihydroxypropan-2-yl]oxy}-5-acetamido-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid
Matched iupac: … -4-yl]oxy}-3-acetamido-4-hydroxyoxan-2-yl]-1,3-dihydroxypropan-2-yl]oxy}-5-acetamido-4-hydroxy-6-[(1R ... -6-(hydroxymethyl)-3-(2-oxopropyl)oxan-2-yl]oxy}-6-{[(2R,3S,4R,5R,6R)-4,5-dihydroxy-6-{[(2S,3R)-3-hydroxy ... -2-(octadec-11-enamido)octadecyl]oxy}-2-(hydroxymethyl)oxan-3-yl]oxy}-5-hydroxy-2-(hydroxymethyl)oxan ... (2S,4S,5R)-2-{[(1S,2R)-1-[(3R,4S,6S)-6-carboxy-6-{[(2R,3S,4R,5R,6S)-3-{[(2S,3R,4R,5R,6R)-4,5-dihydroxy …
Matched description: … In particular, 1 stands for GalGalNAcGalGlc-ceramide, 2 stands for GalNAcGalGlc-ceramide and 3 stands ... The numbered subscripts 1, 2 and 3 refer to the carbohydrate sequence that is attached to the ceramide …
Matched description: … In particular, 1 stands for GalGalNAcGalGlc-ceramide, 2 stands for GalNAcGalGlc-ceramide and 3 stands ... The numbered subscripts 1, 2 and 3 refer to the carbohydrate sequence that is attached to the ceramide …