Exact Mass: 442.1264
Exact Mass Matches: 442.1264
Found 41 metabolites which its exact mass value is equals to given mass value 442.1264,
within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error
4.0E-5 dalton.
Pratensin A
(E)-5,7-Dihydroxy-3,6-dimethoxy-2-(4-methoxyphenyl)-4-oxo-4H-1-benzopyran-8-yl ester 2-methyl-2-butenoic acid
(+)-phrymarin II|1-acetoxy-2e-piperonyl-6e-[6-methoxypiperonyl]-3,7-dioxabicyclo[3.3.0]octane
(+)-phrymarin II|1-acetoxy-2e-piperonyl-6e-[6-methoxypiperonyl]-3,7-dioxabicyclo[3.3.0]octane
(-)-sanguinolignan C|(8S,7S,8R)-7-acetoxy-3,4-methylenedioxy-3,4-dimethoxy-7-oxolignano-9,9-lactone
(-)-sanguinolignan C|(8S,7S,8R)-7-acetoxy-3,4-methylenedioxy-3,4-dimethoxy-7-oxolignano-9,9-lactone
2,3-Dimethoxy-14,15-dihydroxy-16,16-dimethyl-9,10-(epoxypropano)-5,11,13-trioxa-5H-benzo[4,5]cyclohepta[1,2-b]naphthalene-6(12H)-one
2,3-Dimethoxy-14,15-dihydroxy-16,16-dimethyl-9,10-(epoxypropano)-5,11,13-trioxa-5H-benzo[4,5]cyclohepta[1,2-b]naphthalene-6(12H)-one
(-)-(1R*,2S*,3S*,4S*,5R*,6R*)-2-O-acetyl-4-O-benzoyl-1-benzoyloxymethyl-1,6-epoxycyclohexan-2,3,4,5-tetrol|2-acetylrotepoxide B
(-)-(1R*,2S*,3S*,4S*,5R*,6R*)-2-O-acetyl-4-O-benzoyl-1-benzoyloxymethyl-1,6-epoxycyclohexan-2,3,4,5-tetrol|2-acetylrotepoxide B
2-acetyl-3-[(E)-caffeoyl]-1-[(E)-p-coumaroyl]glycerol|Lasiocarpin B
2-acetyl-3-[(E)-caffeoyl]-1-[(E)-p-coumaroyl]glycerol|Lasiocarpin B
(-)-sanguinolignan C
(-)-sanguinolignan C
A lignan isolated from the leaves of Piper sanguineispicum.
15-(1,3-Dihydroxy-3-methylbutyl)-4,18-dihydroxy-2-methoxy-7,9,13-trioxapentacyclo[10.8.0.03,10.04,8.014,19]icosa-1,3(10),5,11,14,16,18-heptaen-20-one
15-(1,3-Dihydroxy-3-methylbutyl)-4,18-dihydroxy-2-methoxy-7,9,13-trioxapentacyclo[10.8.0.03,10.04,8.014,19]icosa-1,3(10),5,11,14,16,18-heptaen-20-one
5,7-dihydroxy-3,6-dimethoxy-2-(4-methoxyphenyl)-4-oxochromen-8-yl 2-methylbut-2-enoate
5,7-dihydroxy-3,6-dimethoxy-2-(4-methoxyphenyl)-4-oxochromen-8-yl 2-methylbut-2-enoate
4-[(10r,11r,15r,16r)-16-hydroxy-12-oxo-4,6,13-trioxatetracyclo[7.7.0.0³,⁷.0¹¹,¹⁵]hexadeca-1,3(7),8-trien-10-yl]-2,6-dimethoxyphenyl acetate
4-[(10r,11r,15r,16r)-16-hydroxy-12-oxo-4,6,13-trioxatetracyclo[7.7.0.0³,⁷.0¹¹,¹⁵]hexadeca-1,3(7),8-trien-10-yl]-2,6-dimethoxyphenyl acetate
2-(3,4-dimethoxyphenyl)-5,7-dihydroxy-8-methoxy-4-oxochromen-3-yl 2-methylbut-2-enoate
2-(3,4-dimethoxyphenyl)-5,7-dihydroxy-8-methoxy-4-oxochromen-3-yl 2-methylbut-2-enoate
methyl (1s,2s,4r)-2,4,5,7,12-pentahydroxy-6,11-dioxo-2-propyl-3,4-dihydro-1h-tetracene-1-carboxylate
methyl (1s,2s,4r)-2,4,5,7,12-pentahydroxy-6,11-dioxo-2-propyl-3,4-dihydro-1h-tetracene-1-carboxylate
3-(acetyloxy)-2-[4-(acetyloxy)phenyl]-5-methoxy-6-methyl-4-oxo-2,3-dihydro-1-benzopyran-7-yl acetate
3-(acetyloxy)-2-[4-(acetyloxy)phenyl]-5-methoxy-6-methyl-4-oxo-2,3-dihydro-1-benzopyran-7-yl acetate
[(2r,3r)-3-(3,4-dimethoxyphenyl)-5-methoxy-9-oxo-2h,3h-[1,4]dioxino[2,3-h]chromen-2-yl]methyl acetate
[(2r,3r)-3-(3,4-dimethoxyphenyl)-5-methoxy-9-oxo-2h,3h-[1,4]dioxino[2,3-h]chromen-2-yl]methyl acetate
[3-(3,4-dimethoxyphenyl)-5-methoxy-9-oxo-2h,3h-[1,4]dioxino[2,3-h]chromen-2-yl]methyl acetate
[3-(3,4-dimethoxyphenyl)-5-methoxy-9-oxo-2h,3h-[1,4]dioxino[2,3-h]chromen-2-yl]methyl acetate
(1s,6r,13r,21s)-10,13,21-trihydroxy-16,17-dimethoxy-6-(prop-1-en-2-yl)-2,7,20-trioxapentacyclo[11.8.0.0³,¹¹.0⁴,⁸.0¹⁴,¹⁹]henicosa-3(11),4(8),9,14,16,18-hexaen-12-one
(1s,6r,13r,21s)-10,13,21-trihydroxy-16,17-dimethoxy-6-(prop-1-en-2-yl)-2,7,20-trioxapentacyclo[11.8.0.0³,¹¹.0⁴,⁸.0¹⁴,¹⁹]henicosa-3(11),4(8),9,14,16,18-hexaen-12-one
1,4-dimethyl 2-(2h-1,3-benzodioxol-5-ylmethylidene)-3-[(7-methoxy-2h-1,3-benzodioxol-5-yl)methyl]butanedioate
1,4-dimethyl 2-(2h-1,3-benzodioxol-5-ylmethylidene)-3-[(7-methoxy-2h-1,3-benzodioxol-5-yl)methyl]butanedioate
(1s,2s,3s,4s,5r,6s)-5-(acetyloxy)-6-[(benzoyloxy)methyl]-2,4-dihydroxy-7-oxabicyclo[4.1.0]heptan-3-yl benzoate
(1s,2s,3s,4s,5r,6s)-5-(acetyloxy)-6-[(benzoyloxy)methyl]-2,4-dihydroxy-7-oxabicyclo[4.1.0]heptan-3-yl benzoate
1,4-dimethyl (2z)-2-(2h-1,3-benzodioxol-5-ylmethylidene)-3-[(7-methoxy-2h-1,3-benzodioxol-5-yl)methyl]butanedioate
1,4-dimethyl (2z)-2-(2h-1,3-benzodioxol-5-ylmethylidene)-3-[(7-methoxy-2h-1,3-benzodioxol-5-yl)methyl]butanedioate
1,4-dimethyl (2z,3s)-2-(2h-1,3-benzodioxol-5-ylmethylidene)-3-[(7-methoxy-2h-1,3-benzodioxol-5-yl)methyl]butanedioate
1,4-dimethyl (2z,3s)-2-(2h-1,3-benzodioxol-5-ylmethylidene)-3-[(7-methoxy-2h-1,3-benzodioxol-5-yl)methyl]butanedioate
10,13,21-trihydroxy-16,17-dimethoxy-6-(prop-1-en-2-yl)-2,7,20-trioxapentacyclo[11.8.0.0³,¹¹.0⁴,⁸.0¹⁴,¹⁹]henicosa-3(11),4(8),9,14,16,18-hexaen-12-one
10,13,21-trihydroxy-16,17-dimethoxy-6-(prop-1-en-2-yl)-2,7,20-trioxapentacyclo[11.8.0.0³,¹¹.0⁴,⁸.0¹⁴,¹⁹]henicosa-3(11),4(8),9,14,16,18-hexaen-12-one
(11r,15r,17r)-17-ethyl-2-hydroxy-5-[(2r,4r,6r)-4-hydroxy-6-methyl-5-oxooxan-2-yl]-12,16-dioxatetracyclo[8.7.0.0³,⁸.0¹¹,¹⁵]heptadeca-1,3(8),5,9-tetraene-4,7,13-trione
(11r,15r,17r)-17-ethyl-2-hydroxy-5-[(2r,4r,6r)-4-hydroxy-6-methyl-5-oxooxan-2-yl]-12,16-dioxatetracyclo[8.7.0.0³,⁸.0¹¹,¹⁵]heptadeca-1,3(8),5,9-tetraene-4,7,13-trione
2-(acetyloxy)-3-{[3-(4-hydroxyphenyl)prop-2-enoyl]oxy}propyl 3-(3,4-dihydroxyphenyl)prop-2-enoate
2-(acetyloxy)-3-{[3-(4-hydroxyphenyl)prop-2-enoyl]oxy}propyl 3-(3,4-dihydroxyphenyl)prop-2-enoate
(2r)-2-(acetyloxy)-3-{[(2e)-3-(4-hydroxyphenyl)prop-2-enoyl]oxy}propyl (2e)-3-(3,4-dihydroxyphenyl)prop-2-enoate
(2r)-2-(acetyloxy)-3-{[(2e)-3-(4-hydroxyphenyl)prop-2-enoyl]oxy}propyl (2e)-3-(3,4-dihydroxyphenyl)prop-2-enoate
methyl 2,4,5,7,12-pentahydroxy-6,11-dioxo-2-propyl-3,4-dihydro-1h-tetracene-1-carboxylate
methyl 2,4,5,7,12-pentahydroxy-6,11-dioxo-2-propyl-3,4-dihydro-1h-tetracene-1-carboxylate
(2s,3s)-3-(acetyloxy)-2-[4-(acetyloxy)phenyl]-5-methoxy-6-methyl-4-oxo-2,3-dihydro-1-benzopyran-7-yl acetate
(2s,3s)-3-(acetyloxy)-2-[4-(acetyloxy)phenyl]-5-methoxy-6-methyl-4-oxo-2,3-dihydro-1-benzopyran-7-yl acetate
[4-(2h-1,3-benzodioxole-5-carbonyl)-5-oxooxolan-3-yl](3,4-dimethoxyphenyl)methyl acetate
[4-(2h-1,3-benzodioxole-5-carbonyl)-5-oxooxolan-3-yl](3,4-dimethoxyphenyl)methyl acetate
