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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.

28,554products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

Reference Standard

Hydroxychloroquine Impurity F chemical structure

Hydroxychloroquine Impurity F

CAS: 6281-58-9
Formula: C₁₄H₁₅ClN₂
MW: 246.73 g/mol

In stock

Reference Standard

Hydroxychloroquine Impurity-D (Stage-I)

Hydroxychloroquine Impurity-D (Stage-I)

Formula: C₅H₁₁NO₂
MW: 117.15 g/mol

In stock

Reference Standard

Hydroxychloroquine Impurity-D (Stage-II) chemical structure

Hydroxychloroquine Impurity-D (Stage-II)

CAS: 927-55-9
Formula: C₅H₁₃NO
MW: 103.16 g/mol

In stock

Reference Standard

Hydroxychloroquine-D4 Sulfate chemical structure

Hydroxychloroquine-D4 Sulfate

CAS: 1854126-45-6
Formula: C₁₈H₂₈ClN₃O₅S
MW: 438 g/mol

VQ-048594

Reference Standard

Hydroxycitric acid chemical structure

Hydroxycitric acid

CAS: 6205-14-7
Formula: C₆H₈O₈
MW: 208.12 g/mol

VQ-039843

Reference Standard

Hydroxydonepezil chemical structure

Hydroxydonepezil

CAS: 197010-20-1
Formula: C₂₄H₂₉NO₄
MW: 395.5 g/mol

VQ-025371

Reference Standard

Hydroxyectoine chemical structure

CAS: 165542-15-4
Formula: C₆H₁₀N₂O₃
MW: 158.16 g/mol

VQ-049681

Reference Standard

Hydroxyethylsalicylate chemical structure

Hydroxyethylsalicylate

CAS: 87-28-5
Formula: C₉H₁₀O₄
MW: 182.17 g/mol

VQ-026087

Reference Standard

Hydroxyhomo Sildenafil chemical structure

Hydroxyhomo Sildenafil

CAS: 139755-85-4
Formula: C₂₃H₃₂N₆O₅S
MW: 504.6 g/mol

VQ-028024

Reference Standard

Hydroxyisobutyl Acetophenone chemical structure

Hydroxyisobutyl Acetophenone

CAS: 1314907-71-5
Formula: C₁₂H₁₆O₂
MW: 192.25 g/mol

VQ-031140

Reference Standard

Hydroxyl Amine Elagolix Impurity chemical structure

Hydroxyl Amine Elagolix Impurity

CAS: 2409132-62-1
Formula: C₃₂H₃₀F₅N₃O₆
MW: 647.6 g/mol

VQ-044365

Reference Standard

Hydroxymethyl Analogue of Drotaverine chemical structure

Hydroxymethyl Analogue of Drotaverine

CAS: 1394077-64-5
Formula: C₂₄H₂₉NO₅
MW: 411.5 g/mol

VQ-048109

Reference Standard

Hydroxymethyl cimetidine chemical structure

Hydroxymethyl cimetidine

CAS: 59359-50-1
Formula: C₁₀H₁₆N₆OS
MW: 268.34 g/mol

VQ-045320

Reference Standard

Hydroxymethyl Clopidogrel Bisulphate chemical structure

Hydroxymethyl Clopidogrel Bisulphate

CAS: 1346231-35-3
Formula: C₁₇H₁₈ClNO₃S
MW: 351.8 g/mol

VQ-036410

Reference Standard

Hydroxymethyl Ivacaftor chemical structure

Hydroxymethyl Ivacaftor

CAS: 1246213-23-9
Formula: C₂₄H₂₈N₂O₄
MW: 408.5 g/mol

VQ-026269

Reference Standard

Hydroxymethyl Mexiletine chemical structure

Hydroxymethyl Mexiletine

CAS: 53566-98-6
Formula: C₁₁H₁₇NO₂
MW: 195.26 g/mol

VQ-049100

Reference Standard

Hydroxymethyl Tolperisone Hydrochloride chemical structure

Hydroxymethyl Tolperisone Hydrochloride

CAS: 352233-14-8
Formula: C₁₆H₂₄ClNO₂
MW: 297.82 g/mol

VQ-042594

Reference Standard

Hydroxyprogesterone Caproate chemical structure

Hydroxyprogesterone Caproate

CAS: 630-56-8
Formula: C₂₇H₄₀O₄
MW: 428.6 g/mol

VQ-023566

Reference Standard

Hydroxyprogesterone Impurity B chemical structure

Hydroxyprogesterone Impurity B

CAS: 6677-15-2
Formula: C₂₆H₃₈O₄
MW: 414.6 g/mol

VQ-027641

Reference Standard

Hydroxyquinone chemical structure

CAS: 2474-72-8
Formula: C₆H₄O₃
MW: 124.09 g/mol

VQ-040152

Reference Standard

Hydroxythiohomo Sildenafil chemical structure

Hydroxythiohomo Sildenafil

CAS: 479073-82-0
Formula: C₂₃H₃₂N₆O₄S₂
MW: 520.7 g/mol

VQ-042158

Reference Standard

Hydroxythiovardenafil chemical structure

Hydroxythiovardenafil

CAS: 912576-30-8
Formula: C₂₃H₃₂N₆O₄S₂
MW: 520.7 g/mol

VQ-034920

Reference Standard

Hydroxyvalerenic Acid chemical structure

Hydroxyvalerenic Acid

CAS: 1619-16-5
Formula: C₁₅H₂₂O₃
MW: 250.33 g/mol

VQ-034521

Reference Standard

Hydroxywybutosine chemical structure

Hydroxywybutosine

CAS: 945684-11-7
Formula: C₂₁H₂₈N₆O₁₀
MW: 524.5 g/mol

VQ-044995

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