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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

Cidofovir Dihydrate chemical structure

Cidofovir Dihydrate

CAS: 149394-66-1
Formula: C₈H₁₈N₃O₈P
MW: 315.22 g/mol

VQ-024963

Reference Standard

Cidofovir diol analog chemical structure

Cidofovir diol analog

CAS: 55559-70-1
Formula: C₇H₁₁N₃O₃
MW: 185.18 g/mol

VQ-029788

Reference Standard

Cidofovir Related Compound B chemical structure

Cidofovir Related Compound B

CAS: 120362-35-8
Formula: C₁₂H₂₂N₃O₆P
MW: 335.29 g/mol

VQ-029787

Reference Standard

Cidofovir uracil analog chemical structure

Cidofovir uracil analog

CAS: 116558-96-4
Formula: C₈H₁₃N₂O₇P
MW: 280.17 g/mol

VQ-022172

Reference Standard

Cidofovir USP Related Compound B Hydrochloride chemical structure

Cidofovir USP Related Compound B Hydrochloride

CAS: 3038741-00-0
Formula: C₁₂H₂₃ClN₃O₆P
MW: 371.75 g/mol

VQ-036293

Reference Standard

Cilastatin chemical structure

CAS: 82009-34-5
Formula: C₁₆H₂₆N₂O₅S
MW: 358.5 g/mol

VQ-022173

Reference Standard

Cilastatin Ammonium chemical structure

Cilastatin Ammonium

CAS: 877674-82-3
Formula: C₁₆H₂₉N₃O₅S
MW: 375.5 g/mol

VQ-036295

Reference Standard

Cilastatin E-Isomer chemical structure

Cilastatin E-Isomer

CAS: 1174657-12-5
Formula: C₁₆H₂₆N₂O₅S
MW: 358.5 g/mol

VQ-044952

Reference Standard

Cilastatin EP Impurity E chemical structure

Cilastatin EP Impurity E

CAS: 1174657-07-8
Formula: C₁₀H₁₇NO₅S
MW: 263.31 g/mol

VQ-022174

Reference Standard

Cilastatin sodium chemical structure

Cilastatin sodium

CAS: 81129-83-1
Formula: C₁₆H₂₅N₂NaO₅S
MW: 380.4 g/mol

VQ-024964

Reference Standard

Cilazapril chemical structure

CAS: 88768-40-5
Formula: C₂₂H₃₁N₃O₅
MW: 417.5 g/mol

VQ-029790

Reference Standard

Cilazapril EP Impurity A chemical structure

Cilazapril EP Impurity A

CAS: 106860-19-9
Formula: C₂₆H₃₉N₃O₅
MW: 473.6 g/mol

VQ-022175

Reference Standard

Cilazapril EP Impurity B chemical structure

Cilazapril EP Impurity B

CAS: 90139-06-3
Formula: C₂₀H₂₇N₃O₅
MW: 389.4 g/mol

VQ-022177

Reference Standard

Cilazapril EP Impurity C chemical structure

Cilazapril EP Impurity C

CAS: 1905397-51-4
Formula: C₂₄H₃₅N₃O₅
MW: 445.6 g/mol

VQ-024965

Reference Standard

Cilazapril EP impurity D chemical structure

Cilazapril EP impurity D

CAS: 106928-09-0
Formula: C₂₂H₃₁N₃O₅
MW: 417.5 g/mol

VQ-022176

Reference Standard

Cilazapril monohydrate chemical structure

Cilazapril monohydrate

CAS: 92077-78-6
Formula: C₂₂H₃₃N₃O₆
MW: 435.5 g/mol

VQ-047783

Reference Standard

Cilinidipine Impurity V

Cilinidipine Impurity V

CAS: 1974323-07-3
Formula: C₂₇H₂₆N₂O₆
MW: 474.51 g/mol

VQ-024966

Reference Standard

Cilostazol chemical structure

CAS: 73963-72-1
Formula: C₂₀H₂₇N₅O₂
MW: 369.5 g/mol

VQ-024967

Reference Standard

Cilostazol Dimer

Cilostazol Dimer

CAS: 2115698-98-9
Formula: C₄₀H₅₂N₁₀O₄
MW: 736.92 g/mol

VQ-036302

Reference Standard

Cilostazol Impurity 20 chemical structure

Cilostazol Impurity 20

CAS: 84996-93-0
Formula: C₁₁H₂₁NO₂
MW: 199.29 g/mol

VQ-036297

Reference Standard

Cilostazol USP Related Compound A chemical structure

Cilostazol USP Related Compound A

CAS: 54197-66-9
Formula: C₉H₉NO₂
MW: 163.17 g/mol

VQ-021151

Reference Standard

Cilostazol USP Related Compound B chemical structure

Cilostazol USP Related Compound B

CAS: 73963-62-9
Formula: C₂₀H₂₅N₅O₂
MW: 367.4 g/mol

VQ-021150

Reference Standard

Cilostazol USP Related Compound C chemical structure

Cilostazol USP Related Compound C

CAS: 865792-18-3
Formula: C₃₁H₄₅N₉O₂
MW: 575.7 g/mol

VQ-021152

Reference Standard

Cilostazol-d11 chemical structure

CAS: 1073608-02-2
Formula: C₂₀H₂₇N₅O₂
MW: 380.5 g/mol

VQ-036305

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