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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

Epinephrine-d6 chemical structure

CAS: 1219803-77-6
Formula: C₉H₁₃NO₃
MW: 189.24 g/mol

VQ-035625

Reference Standard

Epirubicin chemical structure

CAS: 56420-45-2
Formula: C₂₇H₂₉NO₁₁
MW: 543.5 g/mol

VQ-030510

Reference Standard

Epirubicin Dimer chemical structure

Epirubicin Dimer

CAS: 1046827-43-3
Formula: C₅₄H₅₈N₂O₂₂
MW: 1087 g/mol

VQ-037029

Reference Standard

Epirubicin EP Impurity A chemical structure

Epirubicin EP Impurity A

CAS: 24385-10-2
Formula: C₂₁H₁₈O₉
MW: 414.4 g/mol

VQ-025561

Reference Standard

Epirubicin EP Impurity B chemical structure

Epirubicin EP Impurity B

CAS: 21794-55-8
Formula: C₂₁H₁₈O₈
MW: 398.4 g/mol

VQ-025211

Reference Standard

Epirubicin EP Impurity F chemical structure

Epirubicin EP Impurity F

CAS: 57918-24-8
Formula: C₂₇H₂₉NO₁₀
MW: 527.5 g/mol

VQ-030512

Reference Standard

Epirubicin Hydrochloride chemical structure

Epirubicin Hydrochloride

CAS: 56390-09-1
Formula: C₂₇H₃₀ClNO₁₁
MW: 580 g/mol

VQ-025560

Reference Standard

Epitalon chemical structure

CAS: 307297-39-8
Formula: C₁₄H₂₂N₄O₉
MW: 390.35 g/mol

VQ-032948

Reference Standard

Epitetracycline chemical structure

Epitetracycline

CAS: 79-85-6
Formula: C₂₂H₂₄N₂O₈
MW: 444.4 g/mol

VQ-023872

Reference Standard

Eplerenone chemical structure

CAS: 107724-20-9
Formula: C₂₄H₃₀O₆
MW: 414.5 g/mol

VQ-025562

Reference Standard

Eplerenone Enacid Impurity chemical structure

Eplerenone Enacid Impurity

CAS: 95716-74-8
Formula: C₂₃H₂₈O₅
MW: 384.5 g/mol

VQ-044298

Reference Standard

Eplerenone EP Impurity A chemical structure

Eplerenone EP Impurity A

CAS: 209253-67-8
Formula: C₂₃H₂₈O₅
MW: 384.5 g/mol

VQ-025563

Reference Standard

Eplerenone EP Impurity B chemical structure

Eplerenone EP Impurity B

CAS: 192704-82-8
Formula: C₂₄H₃₀O₆
MW: 414.5 g/mol

VQ-025564

Reference Standard

Eplerenone EP Impurity C chemical structure

Eplerenone EP Impurity C

CAS: 95716-70-4
Formula: C₂₄H₃₀O₅
MW: 398.5 g/mol

VQ-022545

Reference Standard

Eplerenone EP Impurity D chemical structure

Eplerenone EP Impurity D

CAS: 209253-82-7
Formula: C₂₃H₂₈O₆
MW: 400.5 g/mol

VQ-025565

Reference Standard

Eplerenone EP impurity E chemical structure

Eplerenone EP impurity E

CAS: 209253-81-6
Formula: C₂₄H₃₀O₆
MW: 414.5 g/mol

VQ-025566

Reference Standard

Eplerenone EP Impurity F chemical structure

Eplerenone EP Impurity F

CAS: 579484-30-3
Formula: C₂₄H₃₂O₇
MW: 432.5 g/mol

VQ-043152

Reference Standard

Eplerenone EP impurity F (potassium salt) chemical structure

Eplerenone EP impurity F (potassium salt)

CAS: 95716-98-6
Formula: C₂₄H₃₁KO₇
MW: 470.6 g/mol

VQ-030515

Reference Standard

Eplerenone EP Impurity G chemical structure

Eplerenone EP Impurity G

CAS: 41020-65-9
Formula: C₂₄H₃₂O₅
MW: 400.5 g/mol

VQ-025567

Reference Standard

Eplivanserin chemical structure

CAS: 130579-75-8
Formula: C₁₉H₂₁FN₂O₂
MW: 328.4 g/mol

VQ-048236

Reference Standard

Epoprostenol E-Isomer chemical structure

Epoprostenol E-Isomer

CAS: 65844-28-2
Formula: C₂₀H₃₂O₅
MW: 352.5 g/mol

VQ-030516

Reference Standard

Epoprostenol Sodium chemical structure

Epoprostenol Sodium

CAS: 61849-14-7
Formula: C₂₀H₃₁NaO₅
MW: 374.4 g/mol

VQ-037030

Reference Standard

Epoxiconazole chemical structure

CAS: 133855-98-8
Formula: C₁₇H₁₃ClFN₃O
MW: 329.8 g/mol

VQ-032951

Reference Standard

Epoxy Exemestane (6 Alpha, Beta Isomer) chemical structure

Epoxy Exemestane (6 Alpha, Beta Isomer)

CAS: 184972-12-1
Formula: C₂₀H₂₄O₃
MW: 312.4 g/mol

VQ-025688

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