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Impurities & Reference Standards

Pharmacopeial Impurities (EP / USP / BP)

578 pharmacopeial impurities (ep / usp / bp) with CAS numbers, structures and specifications — batch COA and GHS SDS supplied.

4,399products

427in stock

COA + SDSwith every lot

Reference Standard

Ciprofibrate EP Impurity D chemical structure

Ciprofibrate EP Impurity D

CAS: 130232-51-8
Formula: C₁₄H₁₆Cl₂O₃
MW: 303.2 g/mol

VQ-021166

Reference Standard

Ciprofibrate EP Impurity E chemical structure

Ciprofibrate EP Impurity E

CAS: 52179-28-9
Formula: C₁₅H₁₈Cl₂O₃
MW: 317.2 g/mol

VQ-021167

Reference Standard

Ciprofloxacin EP Impurity A chemical structure

Ciprofloxacin EP Impurity A

CAS: 86393-33-1
Formula: C₁₃H₉ClFNO₃
MW: 281.66 g/mol

In stock

Reference Standard

Ciprofloxacin EP Impurity B chemical structure

Ciprofloxacin EP Impurity B

CAS: 93107-11-0
Formula: C₁₇H₁₉N₃O₃
MW: 313.35 g/mol

VQ-022194

Reference Standard

Ciprofloxacin EP Impurity B Hydrochloride chemical structure

Ciprofloxacin EP Impurity B Hydrochloride

CAS: 2727369-47-1
Formula: C₁₇H₂₀ClN₃O₃
MW: 349.8 g/mol

VQ-047801

Reference Standard

Ciprofloxacin EP Impurity C chemical structure

Ciprofloxacin EP Impurity C

CAS: 103222-12-4
Formula: C₁₅H₁₆FN₃O₃
MW: 305.3 g/mol

In stock

Reference Standard

Ciprofloxacin EP Impurity D chemical structure

Ciprofloxacin EP Impurity D

CAS: 133210-96-5
Formula: C₁₇H₁₈ClN₃O₃
MW: 347.8 g/mol

VQ-022195

Reference Standard

Ciprofloxacin EP Impurity D Hydrochloride chemical structure

Ciprofloxacin EP Impurity D Hydrochloride

CAS: 526204-10-4
Formula: C₁₇H₁₉Cl₂N₃O₃
MW: 384.3 g/mol

VQ-029820

Reference Standard

Ciprofloxacin EP Impurity E chemical structure

Ciprofloxacin EP Impurity E

CAS: 105394-83-0
Formula: C₁₆H₁₈FN₃O
MW: 287.33 g/mol

In stock

Reference Standard

Ciprofloxacin EP Impurity F chemical structure

Ciprofloxacin EP Impurity F

CAS: 226903-07-7
Formula: C₁₇H₁₉N₃O₄
MW: 329.35 g/mol

VQ-022196

Reference Standard

Cis-Atracurium Besylate EP Impurity G chemical structure

Cis-Atracurium Besylate EP Impurity G

CAS: 96946-46-2
Formula: C₆₅H₈₂N₂O₁₈S₂
MW: 1243.5 g/mol

VQ-024423

Reference Standard

Cis-Atracurium Besylate EP Impurity O chemical structure

Cis-Atracurium Besylate EP Impurity O

CAS: 155913-31-8
Formula: C₃₈H₄₉NO₁₁S
MW: 727.9 g/mol

VQ-035843

Reference Standard

Cisatracurium Besilate EP Impurity D chemical structure

Cisatracurium Besilate EP Impurity D

CAS: 1075726-88-3
Formula: C₃₁H₃₉NO₉S
MW: 601.7 g/mol

VQ-024425

Reference Standard

Cisatracurium Besilate EP Impurity P chemical structure

Cisatracurium Besilate EP Impurity P

CAS: 2024603-91-4
Formula: C₅₂H₆₉N₂O₁₂⁺
MW: 914.1 g/mol

VQ-035845

Reference Standard

Cisatracurium Besilate EP Impurity R Dioxalate chemical structure

Cisatracurium Besilate EP Impurity R Dioxalate

CAS: 96687-52-4
Formula: C₅₅H₇₀N₂O₂₀
MW: 1079.1 g/mol

VQ-047478

Reference Standard

Cisatracurium Besylate EP Impurity H chemical structure

Cisatracurium Besylate EP Impurity H

CAS: 96946-44-0
Formula: C₆₅H₈₂N₂O₁₈S₂
MW: 1243.5 g/mol

VQ-029272

Reference Standard

Cisatracurium Besylate EP Impurity M chemical structure

Cisatracurium Besylate EP Impurity M

CAS: 1193104-85-6
Formula: C₆₆H₈₄N₂O₁₈S₂
MW: 1257.5 g/mol

VQ-035844

Reference Standard

Cisatracurium EP Impurity A (Besylate Salt) chemical structure

Cisatracurium EP Impurity A (Besylate Salt)

CAS: 1075727-06-8
Formula: C₃₀H₃₇NO₉S
MW: 587.7 g/mol

VQ-024422

Reference Standard

Cisatracurium EP Impurity B Besylate Salt

Cisatracurium EP Impurity B Besylate Salt

CAS: 2480467-84-1
Formula: C₂₈H₃₅NO₇S
MW: 529.65 g/mol

VQ-044512

Reference Standard

Cisatracurium EP Impurity D chemical structure

Cisatracurium EP Impurity D

CAS: 1075726-87-2
Formula: C₂₅H₃₄NO₆⁺
MW: 444.5 g/mol

VQ-029273

Reference Standard

Cisatracurium EP Impurity G chemical structure

Cisatracurium EP Impurity G

CAS: 96946-45-1
Formula: C₅₃H₇₂N₂O₁₂⁺2
MW: 929.1 g/mol

VQ-035532

Reference Standard

Cisatracurium EP Impurity H

Cisatracurium EP Impurity H

CAS: 96946-43-9
Formula: C₅₃H₇₂N₂O₁₂
MW: 929.2 g/mol

VQ-045406

Reference Standard

Cisatracurium EP Impurity I chemical structure

Cisatracurium EP Impurity I

CAS: 1193104-81-2
Formula: C₅₄H₇₄N₂O₁₂⁺2
MW: 943.2 g/mol

VQ-035539

Reference Standard

Cisatracurium EP Impurity K chemical structure

Cisatracurium EP Impurity K

CAS: 1193104-79-8
Formula: C₅₄H₇₄N₂O₁₂⁺2
MW: 943.2 g/mol

VQ-035540

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