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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

Bicalutamide Sulfoxide chemical structure

Bicalutamide Sulfoxide

CAS: 945419-64-7
Formula: C₁₈H₁₄F₄N₂O₃S
MW: 414.4 g/mol

VQ-021827

Reference Standard

Bicalutamide USP Related Compound B chemical structure

Bicalutamide USP Related Compound B

CAS: 1166228-30-3
Formula: C₁₈H₁₄F₄N₂O₄S
MW: 430.4 g/mol

VQ-020954

Reference Standard

Bicalutamide WS chemical structure

Bicalutamide WS

CAS: 90357-06-5
Formula: C₁₈H₁₄F₄N₂O₄S
MW: 430.4 g/mol

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Reference Standard

Bicalutamide-D4 chemical structure

Bicalutamide-D4

CAS: 1185035-71-5
Formula: C₁₈H₁₄F₄N₂O₄S
MW: 434.4 g/mol

VQ-029433

Reference Standard

Bictegravir chemical structure

CAS: 1611493-60-7
Formula: C₂₁H₁₈F₃N₃O₅
MW: 449.4 g/mol

VQ-021829

Reference Standard

Bictegravir (2S,5R,13aS) Isomer chemical structure

Bictegravir (2S,5R,13aS) Isomer

CAS: 1616340-12-5
Formula: C₂₁H₁₈F₃N₃O₅
MW: 449.4 g/mol

VQ-021831

Reference Standard

Bictegravir 2,4-Difluoro Impurity chemical structure

Bictegravir 2,4-Difluoro Impurity

CAS: 1611493-56-1
Formula: C₂₁H₁₉F₂N₃O₅
MW: 431.4 g/mol

VQ-020956

Reference Standard

Bictegravir Impurity 2 chemical structure

Bictegravir Impurity 2

CAS: 1846582-14-6
Formula: C₂₁H₁₈F₃N₃O₅
MW: 449.4 g/mol

VQ-044046

Reference Standard

Bictegravir Impurity 34

Bictegravir Impurity 34

CAS: 2411332-67-5
Formula: C₁₄H₁₁F₅N₂
MW: 302.25 g/mol

VQ-047579

Reference Standard

Bictegravir Impurity 6 chemical structure

Bictegravir Impurity 6

CAS: 2411506-35-7
Formula: C₁₃H₁₅NO₃
MW: 233.26 g/mol

VQ-020957

Reference Standard

Bictegravir Metabolite M15 chemical structure

Bictegravir Metabolite M15

CAS: 2365156-60-9
Formula: C₂₇H₂₆F₃N₃O₁₁
MW: 625.5 g/mol

VQ-047580

Reference Standard

Bictegravir sodium chemical structure

Bictegravir sodium

CAS: 1807988-02-8
Formula: C₂₁H₁₇F₃N₃NaO₅
MW: 471.4 g/mol

VQ-024578

Reference Standard

Bicyclo Risperidone chemical structure

Bicyclo Risperidone

CAS: 2231638-02-9
Formula: C₂₃H₂₈FIN₄O₂
MW: 538.4 g/mol

VQ-023647

Reference Standard

Bicyclo[2.2.1]heptane-2,3-dicarboxylic Acid chemical structure

Bicyclo[2.2.1]heptane-2,3-dicarboxylic Acid

CAS: 27862-85-7
Formula: C₉H₁₂O₄
MW: 184.19 g/mol

VQ-031698

Reference Standard

Bicyclol Impurity A chemical structure

Bicyclol Impurity A

CAS: 118159-47-0
Formula: C₁₈H₁₄O₈
MW: 358.3 g/mol

VQ-035964

Reference Standard

Bifendate chemical structure

CAS: 73536-69-3
Formula: C₂₀H₁₈O₁₀
MW: 418.3 g/mol

VQ-035963

Reference Standard

Bifenthrin chemical structure

CAS: 82657-04-3
Formula: C₂₃H₂₂ClF₃O₂
MW: 422.9 g/mol

VQ-027095

Reference Standard

Bifonazole chemical structure

CAS: 60628-96-8
Formula: C₂₂H₁₈N₂
MW: 310.4 g/mol

VQ-020958

Reference Standard

Bifonazole EP Impurity A chemical structure

Bifonazole EP Impurity A

CAS: 7598-80-3
Formula: C₁₉H₁₆O
MW: 260.3 g/mol

VQ-020959

Reference Standard

Bifonazole EP Impurity B chemical structure

Bifonazole EP Impurity B

CAS: 91679-37-7
Formula: C₂₂H₁₈N₂
MW: 310.4 g/mol

VQ-020960

Reference Standard

Bifonazole EP Impurity D chemical structure

Bifonazole EP Impurity D

CAS: 66600-23-5
Formula: C₄₁H₃₃N₂⁺
MW: 553.7 g/mol

VQ-035966

Reference Standard

Bifonazole EP Impurity D (Chloride) chemical structure

Bifonazole EP Impurity D (Chloride)

CAS: 66600-13-3
Formula: C₄₁H₃₃ClN₂
MW: 589.2 g/mol

VQ-024579

Reference Standard

Bifonazole EP Impurity E chemical structure

Bifonazole EP Impurity E

CAS: 2469554-07-0
Formula: C₄₁H₃₂N₂
MW: 552.7 g/mol

VQ-029434

Reference Standard

Bilastine chemical structure

CAS: 202189-78-4
Formula: C₂₈H₃₇N₃O₃
MW: 463.6 g/mol

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