Product division
Impurities & Reference Standards
Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.
27,990products
6sub-categories
2,746in stock
COA + SDSwith every lot
API Impurities 14,098Pharmacopeial Impurities (EP / USP / BP) 4,399Nitrosamine Impurities 631Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504Metabolites & Degradation Products 3,922API Reference Standards 3,436
![(7-Chloro-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-2-yl)methanamine](/media/pack/7-chloro-5-phenyl-23-dihydro-1h-benzoe14diazepin-2-ylmethanamine.svg?v=3)
(7-Chloro-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-2-yl)methanamine
- CAS
- 138729-68-7
- Formula
- C16H16ClN3
- MW
- 285.8 g/mol
VQ-044872
![(7,8,9,10-Tetrahydro-6H-6,10-methanoazepino[4,5-g]quinoxalin-2-yl)methanol chemical structure](/media/structures/XMQXHGVQWDMEFM-UHFFFAOYSA-N.svg)
(7,8,9,10-Tetrahydro-6H-6,10-methanoazepino[4,5-g]quinoxalin-2-yl)methanol
- CAS
- 2832128-82-0
- Formula
- C14H15N3O
- MW
- 241.29 g/mol
VQ-042826
(7alpha,17Beta)-17-(Acetyloxy)-7-(9-bromononyl)estr-4-en-3-one
- CAS
- 875573-63-0
- Formula
- C29H45BrO3
- MW
- 521.6 g/mol
VQ-025933
![(7R,8R,9S,13S,14S,17S)-7-(9-Chlorononyl)-3-hydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl acetate chemical structure](/media/structures/BHYGLOVYBLIPQQ-LIHJZYAESA-N.svg)
(7R,8R,9S,13S,14S,17S)-7-(9-Chlorononyl)-3-hydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl acetate
- CAS
- 2490287-82-4
- Formula
- C29H43ClO3
- MW
- 475.1 g/mol
VQ-025935
![(7R,9AR)-7-(((tert-butyldimethylsilyl)oxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine](/media/pack/7r9ar-7-tert-butyldimethylsilyloxymethyloctahydropyrazino21-c14oxazine.svg?v=3)
(7R,9AR)-7-(((tert-butyldimethylsilyl)oxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine
- CAS
- 929048-24-8
- Formula
- C14H30N2O2Si
- MW
- 286.49 g/mol
VQ-030436
![(7R)-3,4-Dimethoxy-N-methyl-bicyclo[4.2.0]octa-1,3,5-triene-7-methanamine Hydrochloride chemical structure](/media/structures/SWSAIQSQSDOONK-FVGYRXGTSA-N.svg)
(7R)-3,4-Dimethoxy-N-methyl-bicyclo[4.2.0]octa-1,3,5-triene-7-methanamine Hydrochloride
- CAS
- 1204612-29-2
- Formula
- C12H18ClNO2
- MW
- 243.73 g/mol
VQ-026263
![(7S,8S,9S,10R,13S,14S,17S)-7-Bromo-10,13-dimethyl-17-(2-methyl-1,3-dioxolan-2-yl)-1,2,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolane] chemical structure](/media/structures/AASJRIHHHXQXST-WBIUVFFSSA-N.svg)
(7S,8S,9S,10R,13S,14S,17S)-7-Bromo-10,13-dimethyl-17-(2-methyl-1,3-dioxolan-2-yl)-1,2,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolane]
- CAS
- 74496-89-2
- Formula
- C25H37BrO4
- MW
- 481.5 g/mol
VQ-036864
![(7S,9AR)-7-(((tert-butyldimethylsilyl)oxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine](/media/pack/7s9ar-7-tert-butyldimethylsilyloxymethyloctahydropyrazino21-c14oxazine.svg?v=3)
(7S,9AR)-7-(((tert-butyldimethylsilyl)oxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine
- CAS
- 929047-31-4
- Formula
- C14H30N2O2Si
- MW
- 286.49 g/mol
VQ-030435
![(7S,9AS)-7-((Benzyloxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine chemical structure](/media/structures/SFXMAWRMNYQCON-GJZGRUSLSA-N.svg)
(7S,9AS)-7-((Benzyloxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine
- CAS
- 1268364-45-9
- Formula
- C15H22N2O2
- MW
- 262.35 g/mol
VQ-036948
![(7S,9AS)-7-((Benzyloxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine Dioxalate chemical structure](/media/structures/AUKFEQGAEBFHMP-WVFPUEBHSA-N.svg)
(7S,9AS)-7-((Benzyloxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine Dioxalate
- CAS
- 1268364-46-0
- Formula
- C19H26N2O10
- MW
- 442.4 g/mol
VQ-030440
(7S,9S)-9-Acetyl-6,7,9,11-Tetrahydroxy-7,8,9,10-Tetrahydrotetracene-5,12-Dione
- CAS
- 60660-75-5
- Formula
- C20H16O7
- MW
- 368.3 g/mol
VQ-026126
![(8AS)-3-Hydroxyhexahydropyrrolo[1,2-a]pyrazine-1,4-dione chemical structure](/media/structures/GVQWXLTWWOSRCG-VKZKZBKNSA-N.svg)
(8AS)-3-Hydroxyhexahydropyrrolo[1,2-a]pyrazine-1,4-dione
- CAS
- 1846606-32-3
- Formula
- C7H10N2O3
- MW
- 170.17 g/mol
VQ-034618
![(8R,9R,10R,13S)-17-Acetyl-13-ethyl-1,2,6,7,8,9,10,11,12,13-decahydro-3H-cyclopenta[a]phenanthren-3-one](/media/pack/8r9r10r13s-17-acetyl-13-ethyl-12678910111213-decahydro-3h-cyclopentaaphenanthren-3-one.svg?v=3)
(8R,9R,10R,13S)-17-Acetyl-13-ethyl-1,2,6,7,8,9,10,11,12,13-decahydro-3H-cyclopenta[a]phenanthren-3-one
- CAS
- 932388-88-0
- Formula
- C21H26O2
- MW
- 310.43 g/mol
VQ-037511
![(8R,9S,10R,11S,13S,16R,17S)-11,16,17-Trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one chemical structure](/media/structures/DIGGLNJQCGHXQV-XUPWNSBFSA-N.svg)
(8R,9S,10R,11S,13S,16R,17S)-11,16,17-Trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one
- CAS
- 131918-73-5
- Formula
- C21H26O6
- MW
- 374.4 g/mol
VQ-021916
![(8R,9S,10R,13S,14S,17R)-17-Acetyl-6-chloro-17-hydroxy-10,13-dimethyl-8,9,10,11,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one chemical structure](/media/structures/ZSAMZEYLGUEVJW-TTYLFXKOSA-N.svg)
(8R,9S,10R,13S,14S,17R)-17-Acetyl-6-chloro-17-hydroxy-10,13-dimethyl-8,9,10,11,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one
- CAS
- 15262-77-8
- Formula
- C21H25ClO3
- MW
- 360.9 g/mol
VQ-044054
![(8R,9S,10R,13S,14S,17R)-2'-Ethoxy-2'-ethyl-10,13-dimethyl-1,6,7,8,9,10,11,12,13,14,15,16-dodecahydrospiro[cyclopenta[a]phenanthrene-17,4'-[1,3]dioxane]-3,5'(2H)-dione chemical structure](/media/structures/AUEHCFCSDVXSIB-IEBOYTFZSA-N.svg)
(8R,9S,10R,13S,14S,17R)-2'-Ethoxy-2'-ethyl-10,13-dimethyl-1,6,7,8,9,10,11,12,13,14,15,16-dodecahydrospiro[cyclopenta[a]phenanthrene-17,4'-[1,3]dioxane]-3,5'(2H)-dione
- CAS
- 85198-30-7
- Formula
- C26H38O5
- MW
- 430.6 g/mol
VQ-025003
![(8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one chemical structure](/media/structures/WWYNJERNGUHSAO-ZUHHCLADSA-N.svg)
(8R,9S,10R,13S,14S,17S)-13-Ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one
- CAS
- 178737-52-5
- Formula
- C21H28O2
- MW
- 312.4 g/mol
VQ-031537
![(8R,9S,10R,13S,14S)-10,13-Dimethyl-7,8,9,10,11,12,13,14,15,16-decahydrospiro[cyclopenta[a]phenanthrene-17,2'-[1,3]dioxolan]-3(6H)-one chemical structure](/media/structures/AOYBIWCQSGSYJF-DEPCRRQNSA-N.svg)
(8R,9S,10R,13S,14S)-10,13-Dimethyl-7,8,9,10,11,12,13,14,15,16-decahydrospiro[cyclopenta[a]phenanthrene-17,2'-[1,3]dioxolan]-3(6H)-one
- CAS
- 2398-63-2
- Formula
- C21H28O3
- MW
- 328.4 g/mol
VQ-042450
![(8S,9R,10R,13S,14S,17S)-17-Acetyl-10,13-dimethyl-1,2,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one chemical structure](/media/structures/JGMOKGBVKVMRFX-AUYGFBLUSA-N.svg)
(8S,9R,10R,13S,14S,17S)-17-Acetyl-10,13-dimethyl-1,2,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one
- CAS
- 2640-38-2
- Formula
- C21H28O2
- MW
- 312.4 g/mol
VQ-036863
![(8S,9R,10S,13S,14S)-9,17-Dihydroxy-10,13-dimethyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one](/media/pack/8s9r10s13s14s-917-dihydroxy-1013-dimethyl-1267891011121314151617-tetradecahydro-3h.svg?v=3)
(8S,9R,10S,13S,14S)-9,17-Dihydroxy-10,13-dimethyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one
- CAS
- 865540-11-0
- Formula
- C19H28O3
- MW
- 304.42 g/mol
VQ-043639
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