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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

Chloroquinaldol chemical structure

Chloroquinaldol

CAS: 72-80-0
Formula: C₁₀H₇Cl₂NO
MW: 228.07 g/mol

VQ-029760

Reference Standard

Chloroquine chemical structure

CAS: 54-05-7
Formula: C₁₈H₂₆ClN₃
MW: 319.9 g/mol

VQ-036252

Reference Standard

Chloroquine Related Compound E chemical structure

Chloroquine Related Compound E

CAS: 5428-61-5
Formula: C₁₈H₂₆ClN₃
MW: 319.9 g/mol

VQ-035302

Reference Standard

Chloroquine Related Compound E Oxalate

Chloroquine Related Compound E Oxalate

CAS: 2771193-15-6
Formula: C₁₈H₂₆ClN₃.C₂H₂O₄
MW: 409.91 g/mol

VQ-043864

Reference Standard

Chloroquine Sulfate chemical structure

Chloroquine Sulfate

CAS: 132-73-0
Formula: C₁₈H₂₈ClN₃O₄S
MW: 418 g/mol

VQ-031108

Reference Standard

Chloroquine Sulfate Monohydrate chemical structure

Chloroquine Sulfate Monohydrate

CAS: 6823-83-2
Formula: C₁₈H₃₀ClN₃O₅S
MW: 436 g/mol

VQ-036251

Reference Standard

Chloroquine USP Related Compound G chemical structure

Chloroquine USP Related Compound G

CAS: 68121-48-2
Formula: C₁₈H₂₆ClN₃O
MW: 335.9 g/mol

VQ-044459

Reference Standard

Chlorostilbene chemical structure

CAS: 948-99-2
Formula: C₁₄H₁₁Cl
MW: 214.69 g/mol

VQ-047834

Reference Standard

Chlorothalonil chemical structure

CAS: 1897-45-6
Formula: C₈Cl₄N₂
MW: 265.9 g/mol

VQ-039320

Reference Standard

Chloroxylenol-d6 chemical structure

Chloroxylenol-d6

CAS: 1407521-66-7
Formula: C₈H₉ClO
MW: 162.64 g/mol

VQ-043391

Reference Standard

Chlorphenamine chemical structure

CAS: 132-22-9
Formula: C₁₆H₁₉ClN₂
MW: 274.79 g/mol

VQ-007385

Reference Standard

Chlorphenamine EP Impurity A chemical structure

Chlorphenamine EP Impurity A

CAS: 1246816-57-8
Formula: C₁₆H₂₄ClN₃
MW: 293.83 g/mol

VQ-022152

Reference Standard

Chlorphenamine EP Impurity A Dihydrochloride Salt chemical structure

Chlorphenamine EP Impurity A Dihydrochloride Salt

CAS: 2575516-39-9
Formula: C₁₆H₂₆Cl₃N₃
MW: 366.8 g/mol

VQ-024936

Reference Standard

Chlorphenamine EP Impurity C chemical structure

Chlorphenamine EP Impurity C

CAS: 20619-12-9
Formula: C₁₅H₁₇ClN₂
MW: 260.76 g/mol

In stock

Reference Standard

Chlorphenamine EP Impurity D chemical structure

Chlorphenamine EP Impurity D

CAS: 65676-21-3
Formula: C₁₇H₁₈ClN₃
MW: 299.8 g/mol

VQ-022151

Reference Standard

Chlorphenamine EP Impurity D chemical structure

Chlorphenamine EP Impurity D

CAS: 2575516-46-8
Formula: C₁₇H₁₉Cl₂N₃
MW: 336.3 g/mol

VQ-047758

Reference Standard

Chlorphenamine Hydrochloride chemical structure

Chlorphenamine Hydrochloride

CAS: 56343-98-7
Formula: C₁₆H₂₀Cl₂N₂
MW: 311.2 g/mol

VQ-036260

Reference Standard

Chlorphenamine Maleate chemical structure

Chlorphenamine Maleate

CAS: 113-92-8
Formula: C₂₀H₂₃ClN₂O₄
MW: 390.9 g/mol

In stock

Reference Standard

Chlorphenamine N-Oxide Maleate chemical structure

Chlorphenamine N-Oxide Maleate

CAS: 2575516-38-8
Formula: C₂₀H₂₃ClN₂O₅
MW: 406.9 g/mol

VQ-036257

Reference Standard

Chlorphenesin chemical structure

CAS: 104-29-0
Formula: C₉H₁₁ClO₃
MW: 202.63 g/mol

VQ-029746

Reference Standard

Chlorphenesin Carbamate chemical structure

Chlorphenesin Carbamate

CAS: 886-74-8
Formula: C₁₀H₁₂ClNO₄
MW: 245.66 g/mol

VQ-036256

Reference Standard

Chlorphenesin Carbamate Isomer chemical structure

Chlorphenesin Carbamate Isomer

CAS: 61514-96-3
Formula: C₁₀H₁₂ClNO₄
MW: 245.66 g/mol

VQ-036255

Reference Standard

Chlorpheniramine N-Oxide chemical structure

Chlorpheniramine N-Oxide

CAS: 120244-82-8
Formula: C₁₆H₁₉ClN₂O
MW: 290.79 g/mol

VQ-022153

Reference Standard

Chlorpheniramine-d6 Maleate chemical structure

Chlorpheniramine-d6 Maleate

CAS: 1219806-45-7
Formula: C₂₀H₂₃ClN₂O₄
MW: 396.9 g/mol

VQ-029749

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