Search Results for compound
Searching compound for 2,2-Dimethyldiazen-2-iumolate returned 64387 results.
Displaying compounds 401 - 425 of 64387 in total
FDB019253
98917-85-2
2,4,5-trihydroxy-6-(hydroxymethyl)oxan-3-yl 3,4,5-trihydroxybenzoate
Matched name: … 2-Galloylglucose …
Matched description: … Constituent of commercial rhubarb (Rheum subspecies). 2-Galloylglucose is found in green vegetables. …
Matched description: … Constituent of commercial rhubarb (Rheum subspecies). 2-Galloylglucose is found in green vegetables. …
FDB019467
3777-70-6
2-hexylfuran
Matched synonyms: … 2-Hexyl-furan ... 2-n-Hexylfuran ... Furan, 2-hexyl- …
Matched name: … 2-Hexylfuran …
Matched iupac: … 2-hexylfuran …
Matched description: … roast peanut oil, roast guinea hen, fenugreek seed, cooked pork, coriander oil and used cooking fats. 2- …
Matched name: … 2-Hexylfuran …
Matched iupac: … 2-hexylfuran …
Matched description: … roast peanut oil, roast guinea hen, fenugreek seed, cooked pork, coriander oil and used cooking fats. 2- …
FDB019714
65718-88-9
2-hexyl-1,3-benzothiazole
Matched name: … 2-Hexylbenzothiazole …
Matched iupac: … 2-hexyl-1,3-benzothiazole …
Matched description: … Volatile flavour component of roasted peanuts. 2-Hexylbenzothiazole is found in nuts. …
Matched iupac: … 2-hexyl-1,3-benzothiazole …
Matched description: … Volatile flavour component of roasted peanuts. 2-Hexylbenzothiazole is found in nuts. …
FDB019721
37645-62-8
2-pentyl-1,3-thiazole
Matched synonyms: … 2-butylthiazole …
Matched name: … 2-Pentylthiazole …
Matched iupac: … 2-pentyl-1,3-thiazole …
Matched description: … Flavour enhancer for tomato products; flavour component of roast cocoa beans. 2-Pentylthiazole is found …
Matched name: … 2-Pentylthiazole …
Matched iupac: … 2-pentyl-1,3-thiazole …
Matched description: … Flavour enhancer for tomato products; flavour component of roast cocoa beans. 2-Pentylthiazole is found …
FDB019997
10599-59-4
2-(propan-2-yl)furan
Matched synonyms: … 2-(1-Methylethyl)furan, 9CI …
Matched name: … 2-Isopropylfuran …
Matched iupac: … 2-(propan-2-yl)furan …
Matched description: … Constituent of carob (Ceratonia siliqua), coffee and Chinese quince fruit (Chaenomeles speciosa) aromas. 2- …
Matched name: … 2-Isopropylfuran …
Matched iupac: … 2-(propan-2-yl)furan …
Matched description: … Constituent of carob (Ceratonia siliqua), coffee and Chinese quince fruit (Chaenomeles speciosa) aromas. 2- …
FDB020370
3208-16-0
2-ethylfuran
Matched synonyms: … 2-ETHYL FURAN ... 2-Ethyloxole ... 2-Ethyl-furan …
Matched name: … 2-Ethylfuran …
Matched iupac: … 2-ethylfuran …
Matched description: … Flavouring ingredient. 2-Ethylfuran is found in many foods, some of which are roselle, tea, kohlrabi, …
Matched name: … 2-Ethylfuran …
Matched iupac: … 2-ethylfuran …
Matched description: … Flavouring ingredient. 2-Ethylfuran is found in many foods, some of which are roselle, tea, kohlrabi, …
FDB020817
164178-27-2
3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl 10-[(5-hydroxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxy]oxan-2-yl)oxy]-1,2,6a,6b,9,9,12a-heptamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-icosahydropicene-4a-carboxylate
Matched synonyms: … Matesaponin 2 …
Matched name: … Matesaponin 2 …
Matched iupac: … -2-yl]oxy}-3-[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxy]oxan-2-yl)oxy]-1,2,6a,6b,9,9,12a-heptamethyl-1,2,3,4,4a ... 3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl 10-[(5-hydroxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan …
Matched description: … Matesaponin 2 is found in tea and beverages. …
Matched name: … Matesaponin 2 …
Matched iupac: … -2-yl]oxy}-3-[(3,4,5-trihydroxy-6-methyloxan-2-yl)oxy]oxan-2-yl)oxy]-1,2,6a,6b,9,9,12a-heptamethyl-1,2,3,4,4a ... 3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl 10-[(5-hydroxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan …
Matched description: … Matesaponin 2 is found in tea and beverages. …
FDB021996
31023-25-3
3-[(2-methylbutanoyl)oxy]-4-(trimethylazaniumyl)butanoate
Matched synonyms: … (2-methylbutyryl)carnitine ... 2-Methylbutyroylcarnitine ... L-2-methylbutyrate (3-carboxy-2-hydroxypropyl)trimethyl-hydroxide Ammonium inner salt …
Matched name: … 2-Methylbutyroylcarnitine …
Matched iupac: … 3-[(2-methylbutanoyl)oxy]-4-(trimethylazaniumyl)butanoate …
Matched description: … Usually not detected in normal individuals, the elevation of 2-methylbutyrylcarnitine suggests a deficiency …
Matched name: … 2-Methylbutyroylcarnitine …
Matched iupac: … 3-[(2-methylbutanoyl)oxy]-4-(trimethylazaniumyl)butanoate …
Matched description: … Usually not detected in normal individuals, the elevation of 2-methylbutyrylcarnitine suggests a deficiency …
FDB022558
1824020-12-3
1-methyl-2-(pyridin-3-yl)pyrrolidin-2-ol
Matched synonyms: … 2-hydroxynicotine …
Matched name: … 2'-Hydroxynicotine …
Matched iupac: … 1-methyl-2-(pyridin-3-yl)pyrrolidin-2-ol …
Matched description: … 2-Hydroxynicotine is a metabolite of the degradation of Nicotine (Nicotine is an alkaloid found in the ... in tobacco, and in lower quantities in tomato, potato, eggplant (aubergine), and green pepper) via a 2' ... -hydroxylation reaction producing 2'-hydroxynicotine as an intermediate in the cytochrome P450 2A6 [EC …
Matched name: … 2'-Hydroxynicotine …
Matched iupac: … 1-methyl-2-(pyridin-3-yl)pyrrolidin-2-ol …
Matched description: … 2-Hydroxynicotine is a metabolite of the degradation of Nicotine (Nicotine is an alkaloid found in the ... in tobacco, and in lower quantities in tomato, potato, eggplant (aubergine), and green pepper) via a 2' ... -hydroxylation reaction producing 2'-hydroxynicotine as an intermediate in the cytochrome P450 2A6 [EC …
FDB027865
103-81-1
2-phenylacetamide
Matched synonyms: … 2-phenyl-Acetamide ... (alpha-)2-Phenylacetamide …
Matched name: … 2-Phenylacetamide …
Matched iupac: … 2-phenylacetamide …
Matched description: … 2-Phenylacetamide is an intermediate in phenylalanine metabolism and styrene degradation(KEGG ID C02505 ... synthesis of phenylacetylglutamine and is converted from phenylalanine via the enzyme phenylalanine 2- …
Matched name: … 2-Phenylacetamide …
Matched iupac: … 2-phenylacetamide …
Matched description: … 2-Phenylacetamide is an intermediate in phenylalanine metabolism and styrene degradation(KEGG ID C02505 ... synthesis of phenylacetylglutamine and is converted from phenylalanine via the enzyme phenylalanine 2- …
FDB028946
25494-04-6
(4R,5R,6R)-6-(hydroxymethyl)oxane-2,4,5-triol
Matched synonyms: … 2-Deoxy-D-lyxohexose ... 2-Deoxy-D-galactopyranose ... 2-deoxy-D-lyxo-Hexopyranose …
Matched name: … 2-Deoxygalactopyranose …
Matched description: … 2-Deoxygalactopyranose is an optical isomer of 2-deoxyglucose, which has the 2-hydroxyl group replaced ... Similar to galactose, 2-deoxyglucose, and D-fucose, 2-deoxygalactose induces uptake of H+ when the sugar ... by hydrogen. 2-deoxygalactose inhibits galactose uptake and oxidation in galactose-grown cells. …
Matched name: … 2-Deoxygalactopyranose …
Matched description: … 2-Deoxygalactopyranose is an optical isomer of 2-deoxyglucose, which has the 2-hydroxyl group replaced ... Similar to galactose, 2-deoxyglucose, and D-fucose, 2-deoxygalactose induces uptake of H+ when the sugar ... by hydrogen. 2-deoxygalactose inhibits galactose uptake and oxidation in galactose-grown cells. …
FDB029318
2443-58-5
9H-fluoren-2-ol
Matched synonyms: … 2-Fluorenol ... Fluoren-2-ol ... 9H-Fluoren-2-ol …
Matched name: … 2-Hydroxyfluorene …
Matched iupac: … 9H-fluoren-2-ol …
Matched description: … 2-Hydroxyfluorene (2-OHF) is a metabolite of fluorene. ... hydrocarbons (PAHs) throughout the gas phase in the environment, especially in tobacco smoke condensate. 2- …
Matched name: … 2-Hydroxyfluorene …
Matched iupac: … 9H-fluoren-2-ol …
Matched description: … 2-Hydroxyfluorene (2-OHF) is a metabolite of fluorene. ... hydrocarbons (PAHs) throughout the gas phase in the environment, especially in tobacco smoke condensate. 2- …
4-hydroxy-3,3-dimethyl-2-oxobutanoic acid
Matched name: … 2-dehydropantoate …
Matched iupac: … 4-hydroxy-3,3-dimethyl-2-oxobutanoic acid …
Matched description: … 2-dehydropantoic acid, also known as ketopantoate, belongs to short-chain keto acids and derivatives ... Those are keto acids with an alkyl chain the contains less than 6 carbon atoms. 2-dehydropantoic acid ... is soluble (in water) and a weakly acidic compound (based on its pKa). 2-dehydropantoic acid can be …
Matched iupac: … 4-hydroxy-3,3-dimethyl-2-oxobutanoic acid …
Matched description: … 2-dehydropantoic acid, also known as ketopantoate, belongs to short-chain keto acids and derivatives ... Those are keto acids with an alkyl chain the contains less than 6 carbon atoms. 2-dehydropantoic acid ... is soluble (in water) and a weakly acidic compound (based on its pKa). 2-dehydropantoic acid can be …
FDB030350
42187-47-3
2-[(2E,6E,10E,14E,18E,22E,26E)-3,7,11,15,19,23,27,31-octamethyldotriaconta-2,6,10,14,18,22,26,30-octaen-1-yl]phenol
Matched name: … 2-octaprenylphenol …
Matched iupac: … 2-[(2E,6E,10E,14E,18E,22E,26E)-3,7,11,15,19,23,27,31-octamethyldotriaconta-2,6,10,14,18,22,26,30-octaen …
Matched description: … 2-[(2e,6e,10e,14e,18e,22e,26e)-3,7,11,15,19,23,27,31-octamethyldotriaconta-2,6,10,14,18,22,26,30-octaenyl ... Polyprenylphenols are compounds containing a polyisoprene chain attached to a phenol group. 2-[(2e,6e ... found in a number of food items such as lettuce, pak choy, common verbena, and tree fern, which makes 2- …
Matched iupac: … 2-[(2E,6E,10E,14E,18E,22E,26E)-3,7,11,15,19,23,27,31-octamethyldotriaconta-2,6,10,14,18,22,26,30-octaen …
Matched description: … 2-[(2e,6e,10e,14e,18e,22e,26e)-3,7,11,15,19,23,27,31-octamethyldotriaconta-2,6,10,14,18,22,26,30-octaenyl ... Polyprenylphenols are compounds containing a polyisoprene chain attached to a phenol group. 2-[(2e,6e ... found in a number of food items such as lettuce, pak choy, common verbena, and tree fern, which makes 2- …
FDB000084
60-82-2
1-(2-{[(2S,3R,4S,5S,6R)-3-{[(2S,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4,6-dihydroxyphenyl)-3-(4-hydroxyphenyl)propan-1-one
Matched synonyms: … Phloretin 2'-O-xylosyl-glucoside …
Matched name: … Phloretin-2'-O-(2''-O-xylosylglucoside) …
Matched iupac: … 1-(2-{[(2S,3R,4S,5S,6R)-3-{[(2S,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}-4,5-dihydroxy ... -6-(hydroxymethyl)oxan-2-yl]oxy}-4,6-dihydroxyphenyl)-3-(4-hydroxyphenyl)propan-1-one …
Matched description: … Phloretin-2'-o-(2''-o-xylosylglucoside) is a member of the class of compounds known as flavonoid o-glycosides ... -2'-o-(2''-o-xylosylglucoside) a potential biomarker for the consumption of these food products. ... Phloretin-2'-o-(2''-o-xylosylglucoside) is slightly soluble (in water) and a very weakly acidic compound …
Matched name: … Phloretin-2'-O-(2''-O-xylosylglucoside) …
Matched iupac: … 1-(2-{[(2S,3R,4S,5S,6R)-3-{[(2S,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy}-4,5-dihydroxy ... -6-(hydroxymethyl)oxan-2-yl]oxy}-4,6-dihydroxyphenyl)-3-(4-hydroxyphenyl)propan-1-one …
Matched description: … Phloretin-2'-o-(2''-o-xylosylglucoside) is a member of the class of compounds known as flavonoid o-glycosides ... -2'-o-(2''-o-xylosylglucoside) a potential biomarker for the consumption of these food products. ... Phloretin-2'-o-(2''-o-xylosylglucoside) is slightly soluble (in water) and a very weakly acidic compound …
FDB008544
24683-00-9
2-methoxy-3-(2-methylpropyl)pyrazine
Matched synonyms: … 2-methoxy-3-(2-methyl-propyl) pyrazine ... 2-Methoxy-3-(2-methylpropyl)-pyrazine ... Pyrazine, 2-(2-methylpropyl)-3-methoxy …
Matched name: … 2-Methoxy-3-(2-methylpropyl)pyrazine …
Matched iupac: … 2-methoxy-3-(2-methylpropyl)pyrazine …
Matched description: … Fragrance and flavouring ingredient with powerful earthy flavour. 2-Methoxy-3-(2-methylpropyl)pyrazine …
Matched name: … 2-Methoxy-3-(2-methylpropyl)pyrazine …
Matched iupac: … 2-methoxy-3-(2-methylpropyl)pyrazine …
Matched description: … Fragrance and flavouring ingredient with powerful earthy flavour. 2-Methoxy-3-(2-methylpropyl)pyrazine …
FDB009410
1617-40-9
ethyl (2E)-2-methylpent-2-enoate
Matched synonyms: … ethyl (2E)-2-methyl-2-pentenoate ... Ethyl 2-methylpent-2-en-1-oate ... Ethyl (E)-2-methylpent-2-en-1-oate …
Matched name: … Ethyl trans-2-methyl-2-pentenoate …
Matched iupac: … ethyl (2E)-2-methylpent-2-enoate …
Matched name: … Ethyl trans-2-methyl-2-pentenoate …
Matched iupac: … ethyl (2E)-2-methylpent-2-enoate …
FDB016850
42078-65-9
2-phenylethyl 3-methylbut-2-enoate
Matched synonyms: … 2-Phenylethyl 3-methyl-2-butenoate ... 2-Butenoic acid, 3-methyl-, 2-phenethyl ester ... 2-Butenoic acid, 3-methyl-, 2-phenylethyl ester …
Matched name: … 2-Phenylethyl 3-methyl-2-butenoate …
Matched iupac: … 2-phenylethyl 3-methylbut-2-enoate …
Matched description: … 2-Phenylethyl 3-methyl-2-butenoate is a food flavour. …
Matched name: … 2-Phenylethyl 3-methyl-2-butenoate …
Matched iupac: … 2-phenylethyl 3-methylbut-2-enoate …
Matched description: … 2-Phenylethyl 3-methyl-2-butenoate is a food flavour. …
2-(2,4-dihydroxyphenyl)benzoic acid
Matched name: … 2',4'-Dihydroxy-2-biphenylcarboxylic acid …
Matched iupac: … 2-(2,4-dihydroxyphenyl)benzoic acid …
Matched description: … Constituent of Trifolium repens (white clover) (isol. as the permethyl deriv.). 2',4'-Dihydroxy-2-biphenylcarboxylic …
Matched iupac: … 2-(2,4-dihydroxyphenyl)benzoic acid …
Matched description: … Constituent of Trifolium repens (white clover) (isol. as the permethyl deriv.). 2',4'-Dihydroxy-2-biphenylcarboxylic …
FDB019666
55138-70-0
3,5-dimethyl-2-(prop-2-en-1-yl)pyrazine
Matched synonyms: … 2-Allyl-3,5-dimethylpyrazine …
Matched name: … 3,5-Dimethyl-2-(2-propenyl)pyrazine …
Matched iupac: … 3,5-dimethyl-2-(prop-2-en-1-yl)pyrazine …
Matched name: … 3,5-Dimethyl-2-(2-propenyl)pyrazine …
Matched iupac: … 3,5-dimethyl-2-(prop-2-en-1-yl)pyrazine …
FDB019916
80758-69-6
2-methylbutyl 3-hydroxy-2-methylidenebutanoate
Matched synonyms: … 2-Methylbutyl 3-hydroxy-2-methylidenebutanoate …
Matched name: … 2-Methylbutyl 3-hydroxy-2-methylidenebutanoate …
Matched iupac: … 2-methylbutyl 3-hydroxy-2-methylidenebutanoate …
Matched description: … Constituent of the oil of Anthemis nobilis (Roman chamomile). 2-Methylbutyl 3-hydroxy-2-methylidenebutanoate …
Matched name: … 2-Methylbutyl 3-hydroxy-2-methylidenebutanoate …
Matched iupac: … 2-methylbutyl 3-hydroxy-2-methylidenebutanoate …
Matched description: … Constituent of the oil of Anthemis nobilis (Roman chamomile). 2-Methylbutyl 3-hydroxy-2-methylidenebutanoate …
{[(2S,3R,4R,5S,6R)-5-{[(2S,3R,4R,5S,6R)-5-{[(2S,3S,4S,5R,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-{[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]oxy}-3-acetamido-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-acetamido-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}[({[(6E,10E,14E,18E,22E,26E,30E,34E,38E,42E,46E,50E,54E,58E)-3,7,11,15,19,23,27,31,35,39,43,47,51,55,59,63-hexadecamethyltetrahexaconta-6,10,14,18,22,26,30,34,38,42,46,50,54,58,62-pentadecaen-1-yl]oxy}(hydroxy)phosphoryl)oxy]phosphinic acid
Matched name: … (Mannosyl)2-(N-acetylglucosaminyl)2-diphosphodolichol …
Matched iupac: … yl]oxy}oxan-2-yl]oxy}-3-acetamido-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-acetamido-4-hydroxy-6-( ... ,5R,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-{[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2- ... hydroxymethyl)oxan-2-yl]oxy}[({[(6E,10E,14E,18E,22E,26E,30E,34E,38E,42E,46E,50E,54E,58E)-3,7,11,15,19,23,27,31,35,39,43,47,51,55,59,63 …
Matched description: … (Mannosyl)2-(N-acetylglucosaminyl)2-diphosphodolichol (Man2GlcNAc2-Dol) is an isoprene-based lipid where ... In this pathway, (Mannosyl)2-(N-acetylglucosaminyl)2-diphosphodolichol is formed from Mannosyl-(N-acetylglucosaminyl ... )2-diphosphodolichol via reaction with Dolichyl β-D-mannosyl phosphate. …
Matched iupac: … yl]oxy}oxan-2-yl]oxy}-3-acetamido-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3-acetamido-4-hydroxy-6-( ... ,5R,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-{[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2- ... hydroxymethyl)oxan-2-yl]oxy}[({[(6E,10E,14E,18E,22E,26E,30E,34E,38E,42E,46E,50E,54E,58E)-3,7,11,15,19,23,27,31,35,39,43,47,51,55,59,63 …
Matched description: … (Mannosyl)2-(N-acetylglucosaminyl)2-diphosphodolichol (Man2GlcNAc2-Dol) is an isoprene-based lipid where ... In this pathway, (Mannosyl)2-(N-acetylglucosaminyl)2-diphosphodolichol is formed from Mannosyl-(N-acetylglucosaminyl ... )2-diphosphodolichol via reaction with Dolichyl β-D-mannosyl phosphate. …
FDB023941
3546-17-6
{[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-2-({[({[(3R)-3-[(2-{[2-(heptadecanoylsulfanyl)ethyl]carbamoyl}ethyl)carbamoyl]-3-hydroxy-2,2-dimethylpropoxy](hydroxy)phosphoryl}oxy)(hydroxy)phosphoryl]oxy}methyl)-4-hydroxyoxolan-3-yl]oxy}phosphonic acid
Matched iupac: … }ethyl)carbamoyl]-3-hydroxy-2,2-dimethylpropoxy](hydroxy)phosphoryl}oxy)(hydroxy)phosphoryl]oxy}methyl ... {[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-2-({[({[(3R)-3-[(2-{[2-(heptadecanoylsulfanyl)ethyl]carbamoyl …
FDB031086
1763-10-6
{[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-2-({[({[(3R)-3-[(2-{[2-(hexadecanoylsulfanyl)ethyl]carbamoyl}ethyl)carbamoyl]-3-hydroxy-2,2-dimethylpropoxy](hydroxy)phosphoryl}oxy)(hydroxy)phosphoryl]oxy}methyl)-4-hydroxyoxolan-3-yl]oxy}phosphonic acid
Matched iupac: … }ethyl)carbamoyl]-3-hydroxy-2,2-dimethylpropoxy](hydroxy)phosphoryl}oxy)(hydroxy)phosphoryl]oxy}methyl ... {[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-2-({[({[(3R)-3-[(2-{[2-(hexadecanoylsulfanyl)ethyl]carbamoyl …
(2E)-2-methylbut-2-enal
Matched name: … 2-Methylbut-2-en-1-al …
Matched iupac: … (2E)-2-methylbut-2-enal …
Matched description: … 2-methylbut-2-en-1-al, also known as (E)-2-methyl-2-butenal, is a member of the class of compounds known ... makes 2-methylbut-2-en-1-al a potential biomarker for the consumption of these food products. ... (based on its pKa). 2-methylbut-2-en-1-al can be found in apple, garden onion, and peppermint, which …
Matched iupac: … (2E)-2-methylbut-2-enal …
Matched description: … 2-methylbut-2-en-1-al, also known as (E)-2-methyl-2-butenal, is a member of the class of compounds known ... makes 2-methylbut-2-en-1-al a potential biomarker for the consumption of these food products. ... (based on its pKa). 2-methylbut-2-en-1-al can be found in apple, garden onion, and peppermint, which …