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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

Chlorhexidine Diacetate EP Impurity G chemical structure

Chlorhexidine Diacetate EP Impurity G

CAS: 152504-09-1
Formula: C₁₄H₂₃ClN₆
MW: 310.82 g/mol

VQ-036244

Reference Standard

Chlorhexidine Diacetate EP Impurity K chemical structure

Chlorhexidine Diacetate EP Impurity K

CAS: 1381962-77-1
Formula: C₂₂H₂₉Cl₂N₉O
MW: 506.4 g/mol

VQ-022142

Reference Standard

Chlorhexidine Digluconate Impurity N chemical structure

Chlorhexidine Digluconate Impurity N

CAS: 152504-10-4
Formula: C₁₅H₂₅ClN₈
MW: 352.86 g/mol

VQ-021129

Reference Standard

Chlorhexidine Dihydrochloride chemical structure

Chlorhexidine Dihydrochloride

CAS: 3697-42-5
Formula: C₂₂H₃₂Cl₄N₁₀
MW: 578.4 g/mol

VQ-029743

Reference Standard

Chlorhexidine dihydrochloride EP Impurity C

Chlorhexidine dihydrochloride EP Impurity C

CAS: 62247-48-7
Formula: C₂₂H₂₈Cl₂N₈O₂
MW: 507.42 g/mol

VQ-024928

Reference Standard

Chlorhexidine EP Impurity E chemical structure

Chlorhexidine EP Impurity E

CAS: 45964-97-4
Formula: C₇H₈ClN₃
MW: 169.61 g/mol

VQ-022140

Reference Standard

Chlorhexidine EP Impurity F chemical structure

Chlorhexidine EP Impurity F

CAS: 140-38-5
Formula: C₇H₇ClN₂O
MW: 170.59 g/mol

In stock

Reference Standard

Chlorhexidine EP Impurity G chemical structure

Chlorhexidine EP Impurity G

CAS: 165678-61-5
Formula: C₁₄H₂₃ClN₆
MW: 310.82 g/mol

VQ-022141

Reference Standard

Chlorhexidine EP Impurity M chemical structure

Chlorhexidine EP Impurity M

CAS: 152504-12-6
Formula: C₂₂H₃₁ClN₁₀
MW: 471 g/mol

VQ-021130

Reference Standard

Chlorhexidine EP Impurity O chemical structure

Chlorhexidine EP Impurity O

CAS: 2508008-02-2
Formula: C₂₂H₃₀Cl₂N₁₀
MW: 505.4 g/mol

VQ-024927

Reference Standard

Chlorimuron chemical structure

CAS: 99283-00-8
Formula: C₁₃H₁₁ClN₄O₆S
MW: 386.77 g/mol

VQ-051451

Reference Standard

Chlormadinone chemical structure

CAS: 1961-77-9
Formula: C₂₁H₂₇ClO₃
MW: 362.9 g/mol

VQ-022147

Reference Standard

Chlormadinone Acetate (Reference Standard) chemical structure

Chlormadinone Acetate (Reference Standard)

CAS: 302-22-7
Formula: C₂₃H₂₉ClO₄
MW: 404.9 g/mol

In stock

Reference Standard

Chlormadinone Acetate EP Impurity A (Free Base) chemical structure

Chlormadinone Acetate EP Impurity A (Free Base)

CAS: 2477-73-8
Formula: C₂₃H₃₁ClO₄
MW: 406.9 g/mol

VQ-022144

Reference Standard

Chlormadinone Acetate EP Impurity E chemical structure

Chlormadinone Acetate EP Impurity E

CAS: 15251-04-4
Formula: C₂₃H₂₉BrO₄
MW: 449.4 g/mol

VQ-022145

Reference Standard

Chlormadinone Acetate EP Impurity F chemical structure

Chlormadinone Acetate EP Impurity F

CAS: 1172-82-3
Formula: C₂₄H₃₄O₄
MW: 386.5 g/mol

VQ-024931

Reference Standard

Chlormadinone Acetate EP Impurity H chemical structure

Chlormadinone Acetate EP Impurity H

CAS: 1054-64-4
Formula: C₂₄H₃₄O₄
MW: 386.5 g/mol

VQ-024930

Reference Standard

Chlormadinone Acetate EP Impurity I chemical structure

Chlormadinone Acetate EP Impurity I

CAS: 4809-88-5
Formula: C₂₅H₃₅ClO₄
MW: 435 g/mol

VQ-036245

Reference Standard

Chlormadinone Acetate EP Impurity K chemical structure

Chlormadinone Acetate EP Impurity K

CAS: 425-51-4
Formula: C₂₃H₃₀O₄
MW: 370.5 g/mol

VQ-023571

Reference Standard

Chlormadinone Acetate EP Impurity L (Free Base) chemical structure

Chlormadinone Acetate EP Impurity L (Free Base)

CAS: 2658-74-4
Formula: C₂₃H₃₁ClO₄
MW: 406.9 g/mol

VQ-022143

Reference Standard

Chlormadinone Impurity 1

Chlormadinone Impurity 1

CAS: 2133-50-8
Formula: C₂₃H₃₀O₅
MW: 386.48 g/mol

VQ-047754

Reference Standard

Chlormethyl 17a-ethoxycarbonyloxy-3-oxoandrosta-1,4,9(11)-triene-17beta-carboxylate chemical structure

Chlormethyl 17a-ethoxycarbonyloxy-3-oxoandrosta-1,4,9(11)-triene-17beta-carboxylate

CAS: 207670-55-1
Formula: C₂₄H₂₉ClO₆
MW: 448.9 g/mol

VQ-031654

Reference Standard

Chlormezanone chemical structure

CAS: 80-77-3
Formula: C₁₁H₁₂ClNO₃S
MW: 273.74 g/mol

VQ-047753

Reference Standard

Chloro Cephalexin chemical structure

Chloro Cephalexin

CAS: 22039-59-4
Formula: C₁₆H₁₆ClN₃O₄S
MW: 381.8 g/mol

VQ-021128

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