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ID CAS Name Synonyms Molecular Formula Category
17148-04-1NSC26678NSC26678C18H23NO4
2477-19-0Lycorenineycorenine
Lycorenine
lycorenine
9,10-Dimethoxy-1-methyllycorenan-7α-ol
(7alpha)-9,10-dimethoxy-1-methyllycorenan-7-ol
(5aR,7S,11bS,11cS)-9,10-dimethoxy-1-methyl-3,5,5a,7,11b,11c-hexahydro-2H-isochromeno[3,4-g]indol-7-ol
(5aR,7S,11bS,11cS)-1,2,3,5,5a,7,11b,11c-Octahydro-9,10-dimethoxy-1-methyl-[2]benzopyrano[3,4-g]indol-7-ol
[2]Benzopyrano[3,4-g]indol-7-ol, 1,2,3,5,5a,7,11b,11c-octahydro-9,10-dimethoxy-1-methyl-,(5aR,7S,11bS,11cS)-
C18H23NO4None
3529-38-4COCAETHYLENECOCAETHYLENE
cocaethyline
(1r-(exo,exo))-te
BENZOYLECGONINE ETHYL ESTER
ECGONINE ETHYL ESTER BENZOATE
3-(benzoyloxy)-8-methyl-8-azabicyclo(3.2.1)octane-2-carboxylicaciethyles
[1R-(Exo,exo)]-3-(benzoyloxy)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylateacid
8-Azabicyclo[3.2.1]octane-2-carboxylic acid, 3-(benzoyloxy)-8-methyl-, ethyl ester, [1R-(exo,exo)]-
C18H23NO4Pharmaceuticals;Metabolites & Impurities;Intermediates & Fine Chemicals
492007-70-0(S)-Denopamine(S)-Denopamine
Benzenemethanol, α-[[[2-(3,4-dimethoxyphenyl)ethyl]amino]methyl]-4-hydroxy-, (S)-
Benzenemethanol, α-[[[2-(3,4-dimethoxyphenyl)ethyl]amino]methyl]-4-hydroxy-, (αS)-
C18H23NO4
518063-21-3HaplophyllidineHaplophyllidine
(7R,8R)-4,8-dimethoxy-8-(3-methylbut-2-en-1-yl)-5,6,7,8-tetrahydrofuro[2,3-b]quinolin-7-ol
C18H23NO4
622952-50-7ANHYDROPERFORINEANHYDROPERFORINE
1H-Furo[2,3-b]pyrano[2,3-h]quinoline, 2,3,4a,5,6,11b-hexahydro-7,11b-dimethoxy-3,3-dimethyl-, (4aR,11bR)-rel-(-)-
C18H23NO4
750298-96-9ACETYLHOMATROPINEACETYLHOMATROPINE
Benzeneacetic acid, α-(acetyloxy)-, (3-endo)-8-methyl-8-azabicyclo[3.2.1]oct-3-yl ester
C18H23NO4
841758-67-2(±)-IsostemonamineIsostemonamine
(±)-Isostemonamine
rac-(8R*,8aS*)-3'-Methoxy-6,4'-dimethyl-1,8a-propano-1,2,3,4,5,7-hexahydrospiro[cyclopenta[b]azepine-8(8aH),2'(5'H)-furan]-7,5'-dione
Spiro(1H-cyclopenta(B)pyrrolo(1,2-A)azepine-11(10H),2'(5'H)-furan)-5',10-dione, 2,3,5,6,7,8-hexahydro-3'-methoxy-4',9-dimethyl-, (2'R*,11as*)-
Spiro(1H-cyclopenta(B)pyrrolo(1,2-A)azepine-11(10H),2'(5'H)-furan)-5',10-dione, 2,3,5,6,7,8-hexahydro-3'-methoxy-4',9-dimethyl-, (2'R,11as)-rel-
C18H23NO4
9303008-80-2Pandamarilactonine APandamarilactonine AC18H23NO4
10113895-73-1Dobutamine Impurity 20Dobutamine Impurity 20C18H23NO4
113258-70-6Carvedilol Impurity DBACarvedilol Impurity 22
Carvedilol Impurity DBA
Ethanamine, 2-(2-methoxyphenoxy)-N-[2-(2-methoxyphenoxy)ethyl]-
C18H23NO4Control article;Control article-impurity control article
127183-69-914-Hydroxydihydrocodeine14-HydroxydihydrocodeineC18H23NO4
1364532-93-0hydroxybenzylisoproterenolhydroxybenzylisoproterenol
1,2-Benzenediol, 4-[1-hydroxy-2-[[2-(4-hydroxyphenyl)-1-methylethyl]amino]propyl]-
C18H23NO4
1420781-23-1Bis(2,4-dimethoxybenzyl)amineEinecs 244-037-2
Bis(2,4-dimethoxybenzyl)
Bis(2,4-dimethoxybenyl)amine
Bis(2,4-dimethoxybenzyl)amine
BIS(2,4-DIMETHOXYBENZYL)AMINE
Bis(2,4-dimenthoxybenzyl)amine
2,2',4,4'TETRAMETHOXYDIBENZYLAMINE
bis[(2,4-diMethoxyphenyl)Methyl]aMine
N-(2,4-dimethoxybenzyl)-1-(2,4-dimethoxyphenyl)methanamine
Benzenemethanamine, N-(2,4-dimethoxyphenyl)methyl-2,4-dimethoxy-
C18H23NO4Pharmaceutical intermediate
1567009-40-9Oxitropium Bromide EP Impurity AOxitropium Bromide EP Impurity A
Benzeneacetic acid, α-(hydroxymethyl)-, (1α,2β,4β,5α,7β)-9-ethyl-3-oxa-9-azatricyclo[3.3.1.02,4]non-7-yl ester, (αS)- (9CI)
C18H23NO4
16N,N-bis(3,4-dimethoxybenzyl)amineN,N-bis(3,4-dimethoxybenzyl)amineC18H23NO4
17127983-02-2Diethyl 1-cyano-5-phenylpentanoateDiethyl 1-cyano-5-phenylpentanoateC18H23NO4
181946829-15-7bis(4-(2-methoxyethoxy)phenyl)aminebis(4-(2-methoxyethoxy)phenyl)amineC18H23NO4
1986702-58-1Tropanyl 3-hydroxy-4-methoxycinnamateTropanyl 3-hydroxy-4-methoxycinnamate
2-Propenoic acid, 3-(4-hydroxy-3-methoxyphenyl)-, (3-endo)-8-methyl-8-azabicyclo[3.2.1]oct-3-yl ester, (2E)-
C18H23NO4
205471-40-91,2-bis(3,4-dimethoxyphenyl)ethanamine1,2-bis(3,4-dimethoxyphenyl)ethanamine
3,4,3',4'-tetramethoxy-bibenzyl-α-ylamine
Benzeneethanamine, α-(3,4-dimethoxyphenyl)-3,4-dimethoxy-
C18H23NO4
212-Benzyloxycarbonylamino-3-decynoic acid2-Benzyloxycarbonylamino-3-decynoic acidC18H23NO4
22CODEINE MONOHYDRATE [CONTROLLED SUBSTANCE]CODEINE MONOHYDRATE [CONTROLLED SUBSTANCE]C18H23NO4
23Methyl 1-Cbz-3-allylpiperidine-3-carboxylateMethyl 1-Cbz-3-allylpiperidine-3-carboxylateC18H23NO4
24849928-22-94-OXO-2-SPIRO(N-BOC-PIPERIDINE-4-YL)-BENZOPYRAN4-OXO-2-SPIRO(N-BOC-PIPERIDINE-4-YL)-BENZOPYRANC18H23NO4
2556775-79-2(6aξ,8aξ,11ξ,12ξ)-12-O-DemethylkesselringineKesselridine
(6aξ,8aξ,11ξ,12ξ)-12-O-Demethylkesselringine
2,5a-Methano-5aH-1-benzoxocino[8,7,6-def]quinoline-2,3,12-triol, 2,3,4,5,6,7,7a,8,9,10-decahydro-8-methyl-
C18H23NO4
266199-38-84,14-DIHYDROXY-3-METHOXY-17-METHYLMORPHINAN-6-ONEMCSOAHVAIJXNDN-ZTFGCOKTSA-N
14-Hydroxydihydro Thebainone
4,14-Dihydroxy-3-Methoxy-N-Methyl-6-oxo-Morphinan
4,14-DIHYDROXY-3-METHOXY-17-METHYLMORPHINAN-6-ONE
4,14-Dihydroxy-3-methoxy-17-methyl-6-oxomorphinan
Morphinan-6-one, 4,14-dihydroxy-3-methoxy-17-methyl-
(4aR)-5,10aβ-Dihydroxy-1,2,3,9,10,10a-hexahydro-6-methoxy-11-methyl-4H-10β,4aβ-(iminoethano)phenanthren-3-one
C18H23NO4Chiral Reagents;Pharmaceuticals;Metabolites & Impurities;Intermediates & Fine Chemicals
27517-78-23,12-Didehydro-2β,9,10-trimethoxygalanthan-1α-olGalanthine
3,12-Didehydro-2β,9,10-trimethoxygalanthan-1α-ol
1H-Pyrrolo[3,2,1-de]phenanthridin-1-ol, 2,4,5,7,11b,11c-hexahydro-2,9,10-trimethoxy-, (1S,2S,11bS,11cS)-
C18H23NO4
287-(Heptylamino)-2-oxo-2H-1-benzopyran-4-acetic acid7-(Heptylamino)-2-oxo-2H-1-benzopyran-4-acetic acidC18H23NO4
294-METHOXY-4-METHYL-1-(4-NITRO-PHENYL)-DEC-2-YN-1-ONE4-METHOXY-4-METHYL-1-(4-NITRO-PHENYL)-DEC-2-YN-1-ONEC18H23NO4
30N-(4-methoxybenzyl)(2,3,4-trimethoxyphenyl)methanamineN-(4-methoxybenzyl)(2,3,4-trimethoxyphenyl)methanamineC18H23NO4
31N-(2,5-dimethoxybenzyl)(2,4-dimethoxyphenyl)methanamineN-(2,5-dimethoxybenzyl)(2,4-dimethoxyphenyl)methanamineC18H23NO4
32147610-84-26-benzyl 1-ethyl 6-azaspiro[2.5]octane-1,6-dicarboxylate6-benzyl 1-ethyl 6-azaspiro[2.5]octane-1,6-dicarboxylateC18H23NO4
33864185-80-8hexahydro-, 1-ethyl-2-(phenylmethyl) ester, (1R,3aS,6aR)-Cyclopenta[c]pyrrole-1,2(1H)-dicarboxylic acid
hexahydro-, 1-ethyl-2-(phenylmethyl) ester, (1R,3aS,6aR)-
Cyclopenta[c]pyrrole-1,2(1H)-dicarboxylic acid, hexahydro-, 1-ethyl 2-(phenylmethyl) ester, (1R,3aS,6aR)-rel-
C18H23NO4
342-Benzylidene-5-morpholino-3-oxopentanoic acid ethyl ester2-Benzylidene-5-morpholino-3-oxopentanoic acid ethyl esterC18H23NO4
35N-(2-methoxy-5-methylphenyl)-N-(2,4,5-trimethoxybenzyl)amineN-(2-methoxy-5-methylphenyl)-N-(2,4,5-trimethoxybenzyl)amineC18H23NO4
36496772-08-82-[(4-methyl-2-oxo-2H-chromen-7-yl)oxy]-N,N-dipropylacetamide2-[(4-methyl-2-oxo-2H-chromen-7-yl)oxy]-N,N-dipropylacetamideC18H23NO4
37380487-05-8{[(furan-2-yl)methyl]carbamoyl}methyl adamantane-1-carboxylate{[(furan-2-yl)methyl]carbamoyl}methyl adamantane-1-carboxylate
2-((Furan-2-ylmethyl)amino)-2-oxoethyl adamantane-1-carboxylate
C18H23NO4
381602573-69-2tert-butyl 4-(benzofuran-2-yl)-4-hydroxypiperidine-1-carboxylatetert-butyl 4-(benzofuran-2-yl)-4-hydroxypiperidine-1-carboxylateC18H23NO4
39866587-85-11H-Indole-1,5-dicarboxylic acid, 1,5-bis(1,1-diMethylethyl) esterditert-butyl indole-1,5-dicarboxylate
Di-tert-Butyl 1H-indole-1,5-dicarboxylate
1H-Indole-1,5-dicarboxylic acid, 1,5-bis(1,1-diMethylethyl) ester
C18H23NO4Organic materials;Organic acid esters
40176306-78-8Benzenemethanamine, N-[(2,3-dimethoxyphenyl)methyl]-2,3-dimethoxy-bis(2,3-dimethoxybenzyl)amine
Benzenemethanamine, N-[(2,3-dimethoxyphenyl)methyl]-2,3-dimethoxy-
C18H23NO4
41496013-12-81-cyclohexyl-2-(4-methoxyphenyl)-5-oxo-3-pyrrolidinecarboxylic acid1-cyclohexyl-2-(4-methoxyphenyl)-5-oxo-3-pyrrolidinecarboxylic acid
3-Pyrrolidinecarboxylic acid, 1-cyclohexyl-2-(4-methoxyphenyl)-5-oxo-
C18H23NO4
42136465-85-5(3S,4aS,8aS)-2-Carbobenzyloxy-decahydro-3-isoquinolinecarboxylic Acid(3S,4aS,8aS)-2-Carbobenzyloxy-decahydro-3-isoquinolinecarboxylic AcidC18H23NO4
4389351-98-41H-Isoindole-1,3(2H)-dione, 2-[(2E)-2-(diethoxymethyl)-2-penten-1-yl]-1H-Isoindole-1,3(2H)-dione, 2-[(2E)-2-(diethoxymethyl)-2-penten-1-yl]-C18H23NO4
44862501-91-5methyl 4-(((benzyloxy)carbonyl)amino)bicyclo[2.2.2]octane-1-carboxylatemethyl 4-(((benzyloxy)carbonyl)amino)bicyclo[2.2.2]octane-1-carboxylateC18H23NO4
453-[(4-acetylanilino)carbonyl]-1,2,2-trimethylcyclopentanecarboxylic acid3-[(4-acetylanilino)carbonyl]-1,2,2-trimethylcyclopentanecarboxylic acidC18H23NO4
46128470-16-64-[(1R)-1-hydroxy-2-[4-(4-hydroxyphenyl)butylamino]ethyl]benzene-1,2-diolArbutamina
Arbutaminum
Unii-B07L15yaev
Arbutaminum [inn-latin]
Arbutamina [inn-spanish]
ARBUTAMINE (Hydrochloride)
4-[(1R)-1-hydroxy-2-[4-(4-hydroxyphenyl)butylamino]ethyl]benzene-1,2-diol
C18H23NO4None;Amines;Aromatics;Chiral Reagents;Pharmaceuticals;Intermediates & Fine Chemicals;Amines, Aromatics, Chiral Reagents, Pharmaceuticals, Intermediates & Fine Chemicals
471009242-00-58-methyl-4-(4-methylbenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid8-methyl-4-(4-methylbenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acidC18H23NO4
482-({2-[(2-methyl-2-propenyl)oxy]anilino}carbonyl)cyclohexanecarboxylic acid2-({2-[(2-methyl-2-propenyl)oxy]anilino}carbonyl)cyclohexanecarboxylic acidC18H23NO4
491240970-53-9tert-butyl 3-[4-(ethoxycarbonyl)phenyl]-2,5-dihydro-1H-pyrrole-1-carboxylatetert-butyl 3-[4-(ethoxycarbonyl)phenyl]-2,5-dihydro-1H-pyrrole-1-carboxylateC18H23NO4
50654635-30-07,7-DIMETHYL-N-(4-METHYLPHENYL)-2-OXO-1,8-DIOXASPIRO[4.5]DECANE-4-CARBOXAMIDE7,7-DIMETHYL-N-(4-METHYLPHENYL)-2-OXO-1,8-DIOXASPIRO[4.5]DECANE-4-CARBOXAMIDE
TOSLAB 836985
C18H23NO4
511172134-11-0cis-3-(2,5-Dimethylphenyl)-3-hydroxy-8-methoxy-1-azaspiro[4.5]decane-2,4-dioneSPIROTETRAMAT-CIS-KETO-HYDROXY
Spirotetramat-cis-keto-hydroxy
Spirotetramat Metabolite cis-keto-hydroxy
Spirotetramat Metabolite BYI08330-cis-keto-hydroxy
Spirotetramat-?keto-?hydroxy (Mixture of Diastereomers)
3-(2,5-dimethylphenyl)-3-hydroxy-8-methoxy-1-azaspiro[4.5]decane-2,4-dione
1-Azaspiro[4.5]decane-2,4-dione, 3-(2,5-dimethylphenyl)-3-hydroxy-8-methoxy-
cis-3-(2,5-Dimethylphenyl)-3-hydroxy-8-methoxy-1-azaspiro[4.5]decane-2,4-dione
C18H23NO4
526874-70-0(3R)-4,4aα-Dihydro-3α,7,8-trimethoxy-3H,6H-5β,10bβ-ethanophenanthridin-9-olAmaryllisine
(3R)-4,4aα-Dihydro-3α,7,8-trimethoxy-3H,6H-5β,10bβ-ethanophenanthridin-9-ol
3H,6H-5,10b-Ethanophenanthridin-9-ol, 4,4a-dihydro-3,7,8-trimethoxy-, (3R,4aR,5S,10bS)- (9CI)
C18H23NO4
535432-83-7methyl (2Z)-2-methoxy-2-(1,4,4,6,7-pentamethyl-2-oxo-quinolin-3-yliden e)acetatemethyl (2Z)-2-methoxy-2-(1,4,4,6,7-pentamethyl-2-oxo-quinolin-3-yliden e)acetate
Acetic acid, 2-(1,4-dihydro-1,4,4,6,7-pentamethyl-2-oxo-3(2H)-quinolinylidene)-2-methoxy-, methyl ester
C18H23NO4
541898351-36-41-(1-tert-butoxycarbonyl-3,4-dihydro-2H-quinolin-6-yl)cyclopropanecarboxylic acid1-(1-tert-butoxycarbonyl-3,4-dihydro-2H-quinolin-6-yl)cyclopropanecarboxylic acidC18H23NO4
554-[2-[[2-(3,4-Dimethoxyphenyl)ethyl]amino]-1-hydroxyethyl]cyclohexa-2,5-dien-1-one4-[2-[[2-(3,4-Dimethoxyphenyl)ethyl]amino]-1-hydroxyethyl]cyclohexa-2,5-dien-1-oneC18H23NO4
565-[2-[[2-(4-Hydroxyphenyl)-1,1-dimethylethyl]amino]-1-hydroxyethyl]benzene-1,3-diol5-[2-[[2-(4-Hydroxyphenyl)-1,1-dimethylethyl]amino]-1-hydroxyethyl]benzene-1,3-diolC18H23NO4
57160169-47-1[R-(E)]-2-(3-Ethoxy-3-oxo-1-propenyl)-1-piperidinecarboxylic Acid Phenylmethyl Ester[R-(E)]-2-(3-Ethoxy-3-oxo-1-propenyl)-1-piperidinecarboxylic Acid Phenylmethyl EsterC18H23NO4
58114720-21-71,8-Diethyl-1,3,4,9-tetrahydro-6-hydroxypyrano[3,4-b]indole-1-acetic Acid Methyl EsterEtodolac Impurity 18
1,8-Diethyl-1,3,4,9-tetrahydro-6-hydroxypyrano[3,4-b]indole-1-acetic Acid Methyl Ester
C18H23NO4
59147610-89-75-Azaspiro[2.5]octane-1,5-dicarboxylic acid, 1-ethyl 5-(phenylmethyl) ester, cis- (9CI)5-Azaspiro[2.5]octane-1,5-dicarboxylic acid, 1-ethyl 5-(phenylmethyl) ester, cis- (9CI)
TB-1879
C18H23NO4
60(7R,8R)-4,8-DIMETHOXY-8-(3-METHYL-BUT-2-ENYL)-5,6,7,8-TETRAHYDRO-FURO[2,3-B]QUINOLIN-7-OL(7R,8R)-4,8-DIMETHOXY-8-(3-METHYL-BUT-2-ENYL)-5,6,7,8-TETRAHYDRO-FURO[2,3-B]QUINOLIN-7-OLC18H23NO4
612469196-22-11,3-Benzenediol, 5-[1-hydroxy-2-[[2-(4-hydroxy-3-methylphenyl)-1-methylethyl]amino]ethyl]-1,3-Benzenediol, 5-[1-hydroxy-2-[[2-(4-hydroxy-3-methylphenyl)-1-methylethyl]amino]ethyl]-
Fenoterol Hydrobromide - Impurity C (Freebase)Q: What is Fenoterol Hydrobromide - Impurity C (Freebase) Q: What is the CAS Number of Fenoterol Hydrobromide - Impurity C (Freebase)
5-[(1RS)-2-[(1RS)-2-(4-Hydroxy-3-methylphenyl)-1-methylethyl]amino-1-hydroxyethyl]benzene-1,3-diol
C18H23NO4
62578000-35-8N-(2-methoxy-5-methylphenyl)-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxamideN-(2-methoxy-5-methylphenyl)-4,7,7-trimethyl-3-oxo-2-oxabicyclo[2.2.1]heptane-1-carboxamide
2-Oxabicyclo[2.2.1]heptane-1-carboxamide, N-(2-methoxy-5-methylphenyl)-4,7,7-trimethyl-3-oxo-
C18H23NO4
63183545-01-9Carbamic acid, [4-(benzoyloxy)-2-cyclohexen-1-yl]-, 1,1-dimethylethyl ester, (1S-cis)- (9CI)Carbamic acid, [4-(benzoyloxy)-2-cyclohexen-1-yl]-, 1,1-dimethylethyl ester, (1S-cis)- (9CI)C18H23NO4
64128425-96-7Spiro[cyclohexane-1,1(5H)-[3H]oxazolo[4,3-a]isoquinolin]-3-one, 6,10b-dihydro-8,9-dimethoxy-Spiro[cyclohexane-1,1(5H)-[3H]oxazolo[4,3-a]isoquinolin]-3-one, 6,10b-dihydro-8,9-dimethoxy-C18H23NO4
65105887-09-02-Propenoic acid, 3-phenyl-, 1-[[(1,1-dimethylethyl)amino]carbonyl]-1-methyl-2-oxopropyl ester2-Propenoic acid, 3-phenyl-, 1-[[(1,1-dimethylethyl)amino]carbonyl]-1-methyl-2-oxopropyl esterC18H23NO4
6661949-73-34,5α-Epoxy-3-methoxy-17-methylmorphinan-6β,14-diol Hydrochloride (6β-Oxycodol Hydrochloride)4,5α-Epoxy-3-methoxy-17-methylmorphinan-6β,14-diol Hydrochloride (6β-Oxycodol Hydrochloride)C18H23NO4
672940860-74-0O1-benzyl O4a-methyl (4aR,7aS)-3,4,5,6,7,7a-hexahydro-2H-cyclopenta[b]pyridine-1,4a-dicarboxylateO1-benzyl O4a-methyl (4aR,7aS)-3,4,5,6,7,7a-hexahydro-2H-cyclopenta[b]pyridine-1,4a-dicarboxylateC18H23NO4
68849340-24-52-Propenoic acid, 3-cyclopropyl-2-[[(1,1-dimethylethoxy)carbonyl]amino]-, phenylmethyl ester, (2Z)-2-Propenoic acid, 3-cyclopropyl-2-[[(1,1-dimethylethoxy)carbonyl]amino]-, phenylmethyl ester, (2Z)-C18H23NO4
69125290-49-53H,6H-5,10b-Ethanophenanthridin-8-ol, 4,4a-dihydro-3,7,9-trimethoxy-, [3R-(3α,4aα,5β,10bβ)]- (9CI)3H,6H-5,10b-Ethanophenanthridin-8-ol, 4,4a-dihydro-3,7,9-trimethoxy-, [3R-(3α,4aα,5β,10bβ)]- (9CI)C18H23NO4
70402958-24-1Cyclopenta[c]pyrrole-1,2(1H)-dicarboxylic acid, hexahydro-, 1-ethyl 2-(phenylmethyl) ester, (1S,3aR,6aS)-Cyclopenta[c]pyrrole-1,2(1H)-dicarboxylic acid, hexahydro-, 1-ethyl 2-(phenylmethyl) ester, (1S,3aR,6aS)-C18H23NO4

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