Exact Mass: 700.1845568000001
Exact Mass Matches: 700.1845568000001
Found 59 metabolites which its exact mass value is equals to given mass value 700.1845568000001,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
(S)-Skyrin 2-glucoside
1-(4,5-dihydroxy-7-methyl-9,10-dioxo-2-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-9,10-dihydroanthracen-1-yl)-2,4,5-trihydroxy-7-methyl-9,10-dihydroanthracene-9,10-dione
(S)-Skyrin 2-glucoside is found in alcoholic beverages. (S)-Skyrin 2-glucoside is a constituent of Hypericum perforatum (St Johns wort)
Theaflavate B
2-(3,4-Dihydroxyphenyl)-6,7-dihydroxy-3,4-dihydro-2H-1-benzopyran-3-yl 3,4,6-trihydroxy-5-oxo-1-(3,5,7-trihydroxy-3,4-dihydro-2H-1-benzopyran-2-yl)-5H-benzo[7]annulene-8-carboxylic acid
Theaflavate B is found in tea. Theaflavate B is a constituent of black tea (Camellia sinensis). Constituent of black tea (Camellia sinensis). Theaflavate B is found in tea.
epicatechin-(2beta->7,4beta->8)-epicatechin-(4beta->2)-phloroglucinol|epicatechin-(2beta->7,4beta->8)-epicatechin-(4beta->8)-phloroglucinol|epicatechin-(4beta-8,2beta-O-7)-epicatechin-(4beta-2)-phloroglucinol
epicatechin-(2beta->7,4beta->8)-epicatechin-(4beta->2)-phloroglucinol|epicatechin-(2beta->7,4beta->8)-epicatechin-(4beta->8)-phloroglucinol|epicatechin-(4beta-8,2beta-O-7)-epicatechin-(4beta-2)-phloroglucinol
[3,4,5,6-tetrakis(phenylcarbonyloxy)oxan-2-yl]methyl benzoate
[3,4,5,6-tetrakis(phenylcarbonyloxy)oxan-2-yl]methyl benzoate
(-)-epicatechin-<4beta->8>-(-)-epicatechin-4beta-benzylthioether|(2R,3R,4R)-2,3-cis-3,4-trans-3,5,7,3,4-pentahydroxy-4-<(2R,3S,4S)-2,3-cis-3,4-trans-3,5,7,3,4-pentahydroxy-4-benzylthioflavan-8-yl>flavan|Epicatechin-(4beta->8)-4beta-benzylthioepicatechin|epicatechin-(4beta->8)-epicatechin-(4beta->S)-benzylthioether|epicatechin-(4beta<*>8)-epicatechin-(4beta<*>S)-benzylthioether|procyanidin B-2 4beta-benzylthioether|procyanidin B-2 4-benzylthioether
(-)-epicatechin-<4beta->8>-(-)-epicatechin-4beta-benzylthioether|(2R,3R,4R)-2,3-cis-3,4-trans-3,5,7,3,4-pentahydroxy-4-<(2R,3S,4S)-2,3-cis-3,4-trans-3,5,7,3,4-pentahydroxy-4-benzylthioflavan-8-yl>flavan|Epicatechin-(4beta->8)-4beta-benzylthioepicatechin|epicatechin-(4beta->8)-epicatechin-(4beta->S)-benzylthioether|epicatechin-(4beta<*>8)-epicatechin-(4beta<*>S)-benzylthioether|procyanidin B-2 4beta-benzylthioether|procyanidin B-2 4-benzylthioether
(M)-4,4,7,7-tetra-O-methylcupressuflavone 4-O-beta-D-glucopyranoside|(P)-4,4,7,7-tetra-O-methylcupressuflavone 4-O-beta-D-glucopyranose
(M)-4,4,7,7-tetra-O-methylcupressuflavone 4-O-beta-D-glucopyranoside|(P)-4,4,7,7-tetra-O-methylcupressuflavone 4-O-beta-D-glucopyranose
2-hydroxyhinokinin 2O-(2,3,4,6-O-tetraacetyl)-beta-glucopyranoside
2-hydroxyhinokinin 2O-(2,3,4,6-O-tetraacetyl)-beta-glucopyranoside
Theaflavate B
2-(3,4-dihydroxyphenyl)-6,7-dihydroxy-3,4-dihydro-2H-1-benzopyran-3-yl 3,4,6-trihydroxy-5-oxo-1-(3,5,7-trihydroxy-3,4-dihydro-2H-1-benzopyran-2-yl)-5H-benzo[7]annulene-8-carboxylate
3-[(1E)-2-[4-(beta-D-glucopyranosyloxy)-2-hydroxyphenyl]ethenyl]-5-hydroxyphenyl 6-O-D-apio-beta-D-furanosyl-beta-D-glucopyranoside|4-O-beta-D-glucopyranosyl-2-hydroxyresveratrol 3-(6-O-beta-D-apiofuranosyl-beta-D-glucopyranoside)
3-[(1E)-2-[4-(beta-D-glucopyranosyloxy)-2-hydroxyphenyl]ethenyl]-5-hydroxyphenyl 6-O-D-apio-beta-D-furanosyl-beta-D-glucopyranoside|4-O-beta-D-glucopyranosyl-2-hydroxyresveratrol 3-(6-O-beta-D-apiofuranosyl-beta-D-glucopyranoside)
5,7,3,4-tetrahydroxy-6,8,2-trimethoxyflavone-3-O-alpha-L-rhamnosyl(1->2)-O-beta-D-glucopyranoside
5,7,3,4-tetrahydroxy-6,8,2-trimethoxyflavone-3-O-alpha-L-rhamnosyl(1->2)-O-beta-D-glucopyranoside
(-)-epicatechin-<4beta->6>-(-)-epicatechin-4beta-benzylthioether|4-benzylthioprocyanidin B5|epicatechin-(4beta->6)-4beta-benzylthioepicatechin|epicatechin-(4beta->6)-epicatechin-(4beta->S)-benzylthioether|epicatechin-(4beta<*>6)-epicatechin-(4beta<*>S)-benzylthioether|procyanidin B-5 4beta-benzylthioether
(-)-epicatechin-<4beta->6>-(-)-epicatechin-4beta-benzylthioether|4-benzylthioprocyanidin B5|epicatechin-(4beta->6)-4beta-benzylthioepicatechin|epicatechin-(4beta->6)-epicatechin-(4beta->S)-benzylthioether|epicatechin-(4beta<*>6)-epicatechin-(4beta<*>S)-benzylthioether|procyanidin B-5 4beta-benzylthioether
(S)-Skyrin 2-glucoside
4,5-dihydroxy-7-methyl-2-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-1-(2,4,5-trihydroxy-7-methyl-9,10-dioxo-9,10-dihydroanthracen-1-yl)-9,10-dihydroanthracene-9,10-dione
5-{3-[2-{[4-(Cyclohexylmethoxy)-4-biphenylyl]methyl}-4-(2,4-dich lorophenyl)-1H-imidazol-1-yl]phenyl}-1,2,5-thiadiazolidin-3-one 1 ,1-dioxide
5-{3-[2-{[4-(Cyclohexylmethoxy)-4-biphenylyl]methyl}-4-(2,4-dich lorophenyl)-1H-imidazol-1-yl]phenyl}-1,2,5-thiadiazolidin-3-one 1 ,1-dioxide
(11bS)-2,6-Di-9-phenanthrenyl-4-hydroxy-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-oxide
(11bS)-2,6-Di-9-phenanthrenyl-4-hydroxy-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-oxide
(11bR)-2,6-Di-9-anthracenyl-4-hydroxy-dinaphtho[2,1-d:1μ,2μ-f][1,3,2]dioxaphosphepin-4-oxide
(11bR)-2,6-Di-9-anthracenyl-4-hydroxy-dinaphtho[2,1-d:1μ,2μ-f][1,3,2]dioxaphosphepin-4-oxide
(11bR)-2,6-Di-9-phenanthrenyl-4-hydroxy-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-oxide
(11bR)-2,6-Di-9-phenanthrenyl-4-hydroxy-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-oxide
Bis(2-phenylquinoline)(acetylacetonate)iridium(III)
Bis(2-phenylquinoline)(acetylacetonate)iridium(III)
C35H27IrN2O2 (700.1701842000001)
Bis(1-phenyl-isoquinoline)(Acetylacetonato)iridium(III)
Bis(1-phenyl-isoquinoline)(Acetylacetonato)iridium(III)
C35H27IrN2O2 (700.1701842000001)
(S)-Skyrin 2-glucoside
1-(4,5-dihydroxy-7-methyl-9,10-dioxo-2-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-9,10-dihydroanthracen-1-yl)-2,4,5-trihydroxy-7-methyl-9,10-dihydroanthracene-9,10-dione
Constituent of Hypericum perforatum (St Johns wort). (R)-Skyrin 2-glucoside is found in tea, alcoholic beverages, and herbs and spices. (S)-Skyrin 2-glucoside is found in alcoholic beverages. (S)-Skyrin 2-glucoside is a constituent of Hypericum perforatum (St Johns wort)
3-{4-[(5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy]-6-[(acetyloxy)methyl]-3-hydroxy-5-{[(2z)-2-isothiocyanatobut-2-enoyl]oxy}oxan-2-yl}-2,3-dihydroxy-6-imino-5-oxocyclohex-1-ene-1-carboxylic acid
3-{4-[(5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy]-6-[(acetyloxy)methyl]-3-hydroxy-5-{[(2z)-2-isothiocyanatobut-2-enoyl]oxy}oxan-2-yl}-2,3-dihydroxy-6-imino-5-oxocyclohex-1-ene-1-carboxylic acid
[(2r,3r,4s,5r,6s)-3,4,5-tris(acetyloxy)-6-[(6-{[(3r,4r)-4-(2h-1,3-benzodioxol-5-ylmethyl)-5-oxooxolan-3-yl]methyl}-2h-1,3-benzodioxol-5-yl)oxy]oxan-2-yl]methyl acetate
[(2r,3r,4s,5r,6s)-3,4,5-tris(acetyloxy)-6-[(6-{[(3r,4r)-4-(2h-1,3-benzodioxol-5-ylmethyl)-5-oxooxolan-3-yl]methyl}-2h-1,3-benzodioxol-5-yl)oxy]oxan-2-yl]methyl acetate
5,13-bis(3,4-dihydroxyphenyl)-7-(2,4,6-trihydroxyphenyl)-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2,8,10,15,17,19-hexaene-6,9,17,19,21-pentol
5,13-bis(3,4-dihydroxyphenyl)-7-(2,4,6-trihydroxyphenyl)-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2,8,10,15,17,19-hexaene-6,9,17,19,21-pentol
5-{4-[(5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy]-6-[(acetyloxy)methyl]-3-hydroxy-5-{[(2z)-2-isothiocyanatobut-2-enoyl]oxy}oxan-2-yl}-2-amino-5-hydroxy-3,6-dioxocyclohex-1-ene-1-carboxylic acid
5-{4-[(5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy]-6-[(acetyloxy)methyl]-3-hydroxy-5-{[(2z)-2-isothiocyanatobut-2-enoyl]oxy}oxan-2-yl}-2-amino-5-hydroxy-3,6-dioxocyclohex-1-ene-1-carboxylic acid
3-{4-[(5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy]-6-[(acetyloxy)methyl]-3-hydroxy-5-[(2-isothiocyanatobut-2-enoyl)oxy]oxan-2-yl}-2,3-dihydroxy-6-imino-5-oxocyclohex-1-ene-1-carboxylic acid
3-{4-[(5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy]-6-[(acetyloxy)methyl]-3-hydroxy-5-[(2-isothiocyanatobut-2-enoyl)oxy]oxan-2-yl}-2,3-dihydroxy-6-imino-5-oxocyclohex-1-ene-1-carboxylic acid
2-{4-[2-(3-{[6-({[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}methyl)-3,4,5-trihydroxyoxan-2-yl]oxy}-5-hydroxyphenyl)ethenyl]-3-hydroxyphenoxy}-6-(hydroxymethyl)oxane-3,4,5-triol
2-{4-[2-(3-{[6-({[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}methyl)-3,4,5-trihydroxyoxan-2-yl]oxy}-5-hydroxyphenyl)ethenyl]-3-hydroxyphenoxy}-6-(hydroxymethyl)oxane-3,4,5-triol
(5r)-5-[(2s,3s,4s,5s,6s)-4-{[(2r,4r,5s,6r)-5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy}-6-[(acetyloxy)methyl]-3-hydroxy-5-{[(2z)-2-isothiocyanatobut-2-enoyl]oxy}oxan-2-yl]-2-amino-5-hydroxy-3,6-dioxocyclohex-1-ene-1-carboxylic acid
(5r)-5-[(2s,3s,4s,5s,6s)-4-{[(2r,4r,5s,6r)-5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy}-6-[(acetyloxy)methyl]-3-hydroxy-5-{[(2z)-2-isothiocyanatobut-2-enoyl]oxy}oxan-2-yl]-2-amino-5-hydroxy-3,6-dioxocyclohex-1-ene-1-carboxylic acid
5,5',7,7'-tetrahydroxy-2-(4-hydroxyphenyl)-2'-(4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)-[8,8'-bichromene]-4,4'-dione
5,5',7,7'-tetrahydroxy-2-(4-hydroxyphenyl)-2'-(4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)-[8,8'-bichromene]-4,4'-dione
2,4,4',5,5'-pentahydroxy-7,7'-dimethyl-2'-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-[1,1'-bianthracene]-9,9',10,10'-tetrone
2,4,4',5,5'-pentahydroxy-7,7'-dimethyl-2'-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-[1,1'-bianthracene]-9,9',10,10'-tetrone
(2s,3r,4s,5s,6r)-2-{4-[(1e)-2-(3-{[(2s,3r,4s,5s,6r)-6-({[(2r,3r,4r)-3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}methyl)-3,4,5-trihydroxyoxan-2-yl]oxy}-5-hydroxyphenyl)ethenyl]-3-hydroxyphenoxy}-6-(hydroxymethyl)oxane-3,4,5-triol
(2s,3r,4s,5s,6r)-2-{4-[(1e)-2-(3-{[(2s,3r,4s,5s,6r)-6-({[(2r,3r,4r)-3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy}methyl)-3,4,5-trihydroxyoxan-2-yl]oxy}-5-hydroxyphenyl)ethenyl]-3-hydroxyphenoxy}-6-(hydroxymethyl)oxane-3,4,5-triol
1-{5'-[1-(acetyloxy)ethyl]-1,1',6,6',9'-pentahydroxy-6,6'-dimethyl-8,8',9,10-tetraoxo-5h,5'h,7h,7'h-[2,2'-bianthracen]-5-yl}ethyl acetate
1-{5'-[1-(acetyloxy)ethyl]-1,1',6,6',9'-pentahydroxy-6,6'-dimethyl-8,8',9,10-tetraoxo-5h,5'h,7h,7'h-[2,2'-bianthracen]-5-yl}ethyl acetate
(1s,2s,4s,5s,6r,10s)-2-(hydroxymethyl)-10-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,9-dioxatricyclo[4.4.0.0²,⁴]dec-7-en-5-yl (2e)-3-(3-methoxy-4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)prop-2-enoate
(1s,2s,4s,5s,6r,10s)-2-(hydroxymethyl)-10-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,9-dioxatricyclo[4.4.0.0²,⁴]dec-7-en-5-yl (2e)-3-(3-methoxy-4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)prop-2-enoate
[3,4,5-tris(acetyloxy)-6-[(6-{[4-(2h-1,3-benzodioxol-5-ylmethyl)-5-oxooxolan-3-yl]methyl}-2h-1,3-benzodioxol-5-yl)oxy]oxan-2-yl]methyl acetate
[3,4,5-tris(acetyloxy)-6-[(6-{[4-(2h-1,3-benzodioxol-5-ylmethyl)-5-oxooxolan-3-yl]methyl}-2h-1,3-benzodioxol-5-yl)oxy]oxan-2-yl]methyl acetate
5,7-dihydroxy-8-[(4-hydroxyphenyl)methyl]-6-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-2-(4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)chromen-4-one
5,7-dihydroxy-8-[(4-hydroxyphenyl)methyl]-6-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-2-(4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)chromen-4-one
2,4,4',5,5'-pentahydroxy-7,7'-dimethyl-2'-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-[1,1'-bianthracene]-9,9',10,10'-tetrone
2,4,4',5,5'-pentahydroxy-7,7'-dimethyl-2'-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-[1,1'-bianthracene]-9,9',10,10'-tetrone
2-(hydroxymethyl)-10-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,9-dioxatricyclo[4.4.0.0²,⁴]dec-7-en-5-yl 3-(3-methoxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)prop-2-enoate
2-(hydroxymethyl)-10-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,9-dioxatricyclo[4.4.0.0²,⁴]dec-7-en-5-yl 3-(3-methoxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)prop-2-enoate
5,7-dihydroxy-8-[(4-hydroxyphenyl)methyl]-6-[(2s,3r,4r,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-2-(4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)chromen-4-one
5,7-dihydroxy-8-[(4-hydroxyphenyl)methyl]-6-[(2s,3r,4r,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-2-(4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)chromen-4-one
5,5',7,7'-tetrahydroxy-2-(4-hydroxyphenyl)-2'-(4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)-[8,8'-bichromene]-4,4'-dione
5,5',7,7'-tetrahydroxy-2-(4-hydroxyphenyl)-2'-(4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)-[8,8'-bichromene]-4,4'-dione
(3r)-3-[(2s,3s,4s,5s,6s)-4-{[(2r,4r,5s,6r)-5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy}-6-[(acetyloxy)methyl]-3-hydroxy-5-{[(2z)-2-isothiocyanatobut-2-enoyl]oxy}oxan-2-yl]-2,3-dihydroxy-6-imino-5-oxocyclohex-1-ene-1-carboxylic acid
(3r)-3-[(2s,3s,4s,5s,6s)-4-{[(2r,4r,5s,6r)-5-acetyl-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy}-6-[(acetyloxy)methyl]-3-hydroxy-5-{[(2z)-2-isothiocyanatobut-2-enoyl]oxy}oxan-2-yl]-2,3-dihydroxy-6-imino-5-oxocyclohex-1-ene-1-carboxylic acid
(1r,5r,6r,7s,13s,21r)-5,13-bis(3,4-dihydroxyphenyl)-7-(2,4,6-trihydroxyphenyl)-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2,8,10,15,17,19-hexaene-6,9,17,19,21-pentol
(1r,5r,6r,7s,13s,21r)-5,13-bis(3,4-dihydroxyphenyl)-7-(2,4,6-trihydroxyphenyl)-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2,8,10,15,17,19-hexaene-6,9,17,19,21-pentol
(1s,2s,4s,5s,6s,10s)-2-(hydroxymethyl)-10-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,9-dioxatricyclo[4.4.0.0²,⁴]dec-7-en-5-yl (2e)-3-(3-methoxy-4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)prop-2-enoate
(1s,2s,4s,5s,6s,10s)-2-(hydroxymethyl)-10-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,9-dioxatricyclo[4.4.0.0²,⁴]dec-7-en-5-yl (2e)-3-(3-methoxy-4-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)prop-2-enoate