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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 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

(+/-) Levonorgestrel EP Impurity A chemical structure

(+/-) Levonorgestrel EP Impurity A

CAS: 110785-09-6
Formula: C₂₁H₂₆O₂
MW: 310.4 g/mol

VQ-031535

Reference Standard

(+/-)-2-Propyl-4-pentenoic Acid chemical structure

(+/-)-2-Propyl-4-pentenoic Acid

CAS: 1575-72-0
Formula: C₈H₁₄O₂
MW: 142.2 g/mol

VQ-028616

Reference Standard

(+/-)-4-Hydroxy Mephenytoin chemical structure

(+/-)-4-Hydroxy Mephenytoin

CAS: 61837-65-8
Formula: C₁₂H₁₄N₂O₃
MW: 234.25 g/mol

VQ-030884

Reference Standard

(+/-)-4-Hydroxy Mephenytoin-d3 chemical structure

(+/-)-4-Hydroxy Mephenytoin-d3

CAS: 1173022-56-4
Formula: C₁₂H₁₄N₂O₃
MW: 237.27 g/mol

VQ-041188

Reference Standard

(+/-)-Cannabichromene chemical structure

(+/-)-Cannabichromene

CAS: 20675-51-8
Formula: C₂₁H₃₀O₂
MW: 314.5 g/mol

VQ-029619

Reference Standard

(+/-)-Epinephrine Hydrochloride chemical structure

(+/-)-Epinephrine Hydrochloride

CAS: 329-63-5
Formula: C₉H₁₄ClNO₃
MW: 219.66 g/mol

VQ-029037

Reference Standard

(+/-)-Exo-6-Hydroxytropinone chemical structure

(+/-)-Exo-6-Hydroxytropinone

CAS: 5932-53-6
Formula: C₈H₁₃NO₂
MW: 155.19 g/mol

VQ-039161

Reference Standard

(+/-)-Flurbiprofen-d5 chemical structure

(+/-)-Flurbiprofen-d5

CAS: 215175-76-1
Formula: C₁₅H₁₃FO₂
MW: 249.29 g/mol

VQ-030826

Reference Standard

(+/-)-Lisofylline-D6 chemical structure

(+/-)-Lisofylline-D6

CAS: 1185995-26-9
Formula: C₁₃H₂₀N₄O₃
MW: 286.36 g/mol

VQ-041402

Reference Standard

(+/-)-Metanephrine-Alpha,beta,beta d3 chemical structure

(+/-)-Metanephrine-Alpha,beta,beta d3

CAS: 1085333-94-3
Formula: C₁₀H₁₆ClNO₃
MW: 236.71 g/mol

VQ-038685

Reference Standard

(+/-)-N-3-Benzylnirvanol chemical structure

(+/-)-N-3-Benzylnirvanol

CAS: 93879-40-4
Formula: C₁₈H₁₈N₂O₂
MW: 294.3 g/mol

VQ-040754

Reference Standard

(+/-)-Pramipexole chemical structure

(+/-)-Pramipexole

CAS: 104617-86-9
Formula: C₁₀H₁₇N₃S
MW: 211.33 g/mol

VQ-041580

Reference Standard

(+/-)-tert-Butyl 6-Chloro-5-hydroxy-3-oxohexanoate chemical structure

(+/-)-tert-Butyl 6-Chloro-5-hydroxy-3-oxohexanoate

CAS: 319924-73-7
Formula: C₁₀H₁₇ClO₄
MW: 236.69 g/mol

VQ-042008

Reference Standard

(+/-)trans-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-(4''-fluorophenyl-4'-phenyl)piperidine Hydrochloride chemical structure

(+/-)trans-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-(4''-fluorophenyl-4'-phenyl)piperidine Hydrochloride

CAS: 1217655-87-2
Formula: C₂₅H₂₅ClFNO₃
MW: 441.9 g/mol

VQ-033072

Reference Standard

(±)-4-O-Ethyl Albuterol chemical structure

(±)-4-O-Ethyl Albuterol

CAS: 2387728-91-6
Formula: C₁₅H₂₅NO₃
MW: 267.36 g/mol

VQ-023724

Reference Standard

(±)-Alfuzosin D7 Hydrochloride chemical structure

(±)-Alfuzosin D7 Hydrochloride

CAS: 1276197-14-8
Formula: C₁₉H₂₈ClN₅O₄
MW: 433 g/mol

VQ-047361

Reference Standard

(±)-Anabasine chemical structure

CAS: 13078-04-1
Formula: C₁₀H₁₄N₂
MW: 162.23 g/mol

VQ-038612

Reference Standard

(±)-Bimatoprost chemical structure

(±)-Bimatoprost

CAS: 1365263-66-6
Formula: C₂₅H₃₇NO₄
MW: 415.6 g/mol

VQ-021836

Reference Standard

(±)-Glaucine Hydrobromide chemical structure

(±)-Glaucine Hydrobromide

CAS: 50722-32-2
Formula: C₂₁H₂₆BrNO₄
MW: 436.3 g/mol

VQ-041020

Reference Standard

(±)-Indoxacarb chemical structure

(±)-Indoxacarb

CAS: 144171-61-9
Formula: C₂₂H₁₇ClF₃N₃O₇
MW: 527.8 g/mol

VQ-037706

Reference Standard

(±)-Isomenthone chemical structure

(±)-Isomenthone

CAS: 491-07-6
Formula: C₁₀H₁₈O
MW: 154.25 g/mol

VQ-027122

Reference Standard

(±)-Ketoprofen-D4 chemical structure

(±)-Ketoprofen-D4

CAS: 1219805-29-4
Formula: C₁₆H₁₄O₃
MW: 258.3 g/mol

VQ-037817

Reference Standard

(±)-Lavandulyl Acetate chemical structure

(±)-Lavandulyl Acetate

CAS: 25905-14-0
Formula: C₁₂H₂₀O₂
MW: 196.29 g/mol

VQ-037914

Reference Standard

(±)-Methionine-d4 chemical structure

(±)-Methionine-d4

CAS: 93709-61-6
Formula: C₅H₁₁NO₂S
MW: 153.24 g/mol

VQ-038353

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