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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

Cilostazol-D4 chemical structure

CAS: 1215541-47-1
Formula: C₂₀H₂₇N₅O₂
MW: 373.5 g/mol

VQ-047785

Reference Standard

Cimaterol chemical structure

CAS: 54239-37-1
Formula: C₁₂H₁₇N₃O
MW: 219.28 g/mol

VQ-024968

Reference Standard

Cimbuterol chemical structure

CAS: 54239-39-3
Formula: C₁₃H₁₉N₃O
MW: 233.31 g/mol

VQ-029795

Reference Standard

Cimbuterol-d9 chemical structure

CAS: 1246819-04-4
Formula: C₁₃H₁₉N₃O
MW: 242.36 g/mol

VQ-036306

Reference Standard

Cimetidine EP Impurity A chemical structure

Cimetidine EP Impurity A

CAS: 52378-40-2
Formula: C₁₀H₁₅N₅S₂
MW: 269.4 g/mol

VQ-022183

Reference Standard

Cimetidine EP Impurity B chemical structure

Cimetidine EP Impurity B

CAS: 138035-55-9
Formula: C₁₀H₁₅N₅OS
MW: 253.33 g/mol

VQ-021157

Reference Standard

Cimetidine EP Impurity C chemical structure

Cimetidine EP Impurity C

CAS: 52568-80-6
Formula: C₁₀H₂₀Cl₂N₆OS
MW: 343.3 g/mol

VQ-021156

Reference Standard

Cimetidine EP Impurity C chemical structure

Cimetidine EP Impurity C

CAS: 77076-18-7
Formula: C₁₀H₁₈N₆OS
MW: 270.36 g/mol

VQ-036307

Reference Standard

Cimetidine EP Impurity D chemical structure

Cimetidine EP Impurity D

CAS: 59660-24-1
Formula: C₉H₁₉Cl₂N₅S
MW: 300.25 g/mol

VQ-024074

Reference Standard

Cimetidine EP Impurity D chemical structure

Cimetidine EP Impurity D

CAS: 70172-53-1
Formula: C₉H₁₇N₅S
MW: 227.33 g/mol

VQ-044130

Reference Standard

Cimetidine EP Impurity E chemical structure

Cimetidine EP Impurity E

CAS: 54237-72-8
Formula: C₁₀H₁₆N₆OS
MW: 268.34 g/mol

VQ-021153

Reference Standard

Cimetidine EP Impurity F chemical structure

Cimetidine EP Impurity F

CAS: 55272-86-1
Formula: C₁₆H₂₄N₈S₂
MW: 392.6 g/mol

VQ-021158

Reference Standard

Cimetidine EP Impurity G chemical structure

Cimetidine EP Impurity G

CAS: 31857-31-5
Formula: C₄H₈N₄
MW: 112.13 g/mol

VQ-024972

Reference Standard

Cimetidine EP Impurity H chemical structure

Cimetidine EP Impurity H

CAS: 74886-59-2
Formula: C₁₀H₁₈N₈S₂
MW: 314.4 g/mol

VQ-021154

Reference Standard

Cimetidine EP Impurity I chemical structure

Cimetidine EP Impurity I

CAS: 29636-87-1
Formula: C₅H₈N₂O
MW: 112.13 g/mol

VQ-024969

Reference Standard

Cimetidine EP Impurity J chemical structure

Cimetidine EP Impurity J

CAS: 38585-67-0
Formula: C₇H₁₃N₃S
MW: 171.27 g/mol

VQ-036308

Reference Standard

Cimetidine EP Impurity J Dihydrochloride chemical structure

Cimetidine EP Impurity J Dihydrochloride

CAS: 38603-72-4
Formula: C₇H₁₅Cl₂N₃S
MW: 244.18 g/mol

VQ-021155

Reference Standard

Cimetidine Hydrochloride chemical structure

Cimetidine Hydrochloride

CAS: 70059-30-2
Formula: C₁₀H₁₇ClN₆S
MW: 288.8 g/mol

VQ-043115

Reference Standard

Cimetidine-D3 chemical structure

CAS: 1185237-29-9
Formula: C₁₀H₁₆N₆S
MW: 255.36 g/mol

VQ-036309

Reference Standard

Cinacalcet chemical structure

CAS: 226256-56-0
Formula: C₂₂H₂₂F₃N
MW: 357.4 g/mol

VQ-007390

Reference Standard

Cinacalcet 5,6-Dihydro Racemate Base chemical structure

Cinacalcet 5,6-Dihydro Racemate Base

CAS: 802918-47-4
Formula: C₂₂H₂₄F₃N
MW: 359.4 g/mol

VQ-029814

Reference Standard

Cinacalcet 5,6-Dihydro Racemate Hydrochloride chemical structure

Cinacalcet 5,6-Dihydro Racemate Hydrochloride

CAS: 2514708-62-2
Formula: C₂₂H₂₅ClF₃N
MW: 395.9 g/mol

VQ-036320

Reference Standard

Cinacalcet 7,8-Dihydro Racemate Base chemical structure

Cinacalcet 7,8-Dihydro Racemate Base

CAS: 802918-46-3
Formula: C₂₂H₂₄F₃N
MW: 359.4 g/mol

VQ-029809

Reference Standard

Cinacalcet destrifluoromethyl impurity chemical structure

Cinacalcet destrifluoromethyl impurity

CAS: 253337-26-7
Formula: C₂₁H₂₃N
MW: 289.4 g/mol

VQ-036317

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