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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

Benoxaprofen 13C D3 chemical structure

Benoxaprofen 13C D3

CAS: 1329840-53-0
Formula: C₁₆H₁₂ClNO₃
MW: 305.73 g/mol

VQ-047550

Reference Standard

Benoxinate Hydrochloride chemical structure

Benoxinate Hydrochloride

CAS: 5987-82-6
Formula: C₁₇H₂₉ClN₂O₃
MW: 344.9 g/mol

VQ-027334

Reference Standard

Benperidol chemical structure

CAS: 2062-84-2
Formula: C₂₂H₂₄FN₃O₂
MW: 381.4 g/mol

In stock

Reference Standard

Benperidol EP Impurity A chemical structure

Benperidol EP Impurity A

CAS: 20662-53-7
Formula: C₁₂H₁₅N₃O
MW: 217.27 g/mol

In stock

Reference Standard

Benperidol EP Impurity B

Benperidol EP Impurity B

Formula: C₂₂H₂₄FN₃O₂
MW: 381.44 g/mol

VQ-006263

Reference Standard

Benperidol EP Impurity C

Benperidol EP Impurity C

Formula: C₃₄H₃₈N₆O₃
MW: 578.7 g/mol

In stock

Reference Standard

Benperidol EP Impurity D (Cis N-Oxide)

Benperidol EP Impurity D (Cis N-Oxide)

Formula: C₂₂H₂₄FN₃O₃
MW: 397.44 g/mol

In stock

Reference Standard

Benperidol EP Impurity E (Trans N-Oxide)

Benperidol EP Impurity E (Trans N-Oxide)

Formula: C₂₂H₂₄FN₃O₃
MW: 397.44 g/mol

VQ-006266

Reference Standard

Benperidol Impurity-A (Stage-II) chemical structure

Benperidol Impurity-A (Stage-II)

CAS: 87120-77-2
Formula: C₁₄H₂₁N₃O₂
MW: 263.34 g/mol

In stock

Reference Standard

Benproperine Phosphate chemical structure

Benproperine Phosphate

CAS: 19428-14-9
Formula: C₂₁H₃₀NO₅P
MW: 407.4 g/mol

VQ-029387

Reference Standard

Benserazide EP Impurity A chemical structure

Benserazide EP Impurity A

CAS: 55819-71-1
Formula: C₃H₁₀ClN₃O₂
MW: 155.58 g/mol

VQ-021768

Reference Standard

Benserazide EP Impurity A chemical structure

Benserazide EP Impurity A

CAS: 64616-76-8
Formula: C₃H₉N₃O₂
MW: 119.12 g/mol

VQ-024537

Reference Standard

Benserazide EP Impurity B chemical structure

Benserazide EP Impurity B

CAS: 2472968-83-3
Formula: C₁₇H₂₁N₃O₈
MW: 395.4 g/mol

VQ-024535

Reference Standard

Benserazide EP Impurity C chemical structure

Benserazide EP Impurity C

CAS: 787504-88-5
Formula: C₁₀H₁₃N₃O₅
MW: 255.23 g/mol

VQ-044033

Reference Standard

Benserazide EP Impurity C HCl salt chemical structure

Benserazide EP Impurity C HCl salt

CAS: 1353749-74-2
Formula: C₁₀H₁₄ClN₃O₅
MW: 291.69 g/mol

VQ-024536

Reference Standard

Benserazide Hydrochloride chemical structure

Benserazide Hydrochloride

CAS: 14919-77-8
Formula: C₁₀H₁₆ClN₃O₅
MW: 293.7 g/mol

VQ-021767

Reference Standard

Benserazide Trihydroxybenzylhydrazine Hydrochloride

Benserazide Trihydroxybenzylhydrazine Hydrochloride

CAS: 1244134-81-3
Formula: C₇H₁₀N₂O₃.HCl
MW: 206.6 g/mol

VQ-047551

Reference Standard

Bentazone-6-hydroxy chemical structure

Bentazone-6-hydroxy

CAS: 60374-42-7
Formula: C₁₀H₁₂N₂O₄S
MW: 256.28 g/mol

VQ-049999

Reference Standard

Bentazone-8-hydroxy chemical structure

Bentazone-8-hydroxy

CAS: 60374-43-8
Formula: C₁₀H₁₂N₂O₄S
MW: 256.28 g/mol

VQ-050000

Reference Standard

Benzal Chloride chemical structure

Benzal Chloride

CAS: 98-87-3
Formula: C₇H₆Cl₂
MW: 161.03 g/mol

VQ-032541

Reference Standard

Benzaldehyde Dibenzyl Acetal chemical structure

Benzaldehyde Dibenzyl Acetal

CAS: 5784-65-6
Formula: C₂₁H₂₀O₂
MW: 304.4 g/mol

VQ-032319

Reference Standard

Benzaldehyde Dimethyl Acetal Related Compound 1 chemical structure

Benzaldehyde Dimethyl Acetal Related Compound 1

CAS: 58378-33-9
Formula: C₁₀H₁₄O₃
MW: 182.22 g/mol

VQ-040621

Reference Standard

Benzaldehyde Dimethyl Acetal Related Compound 4 chemical structure

Benzaldehyde Dimethyl Acetal Related Compound 4

CAS: 3395-80-0
Formula: C₉H₁₁ClO₂
MW: 186.63 g/mol

VQ-051483

Reference Standard

Benzathine chemical structure

CAS: 140-28-3
Formula: C₁₆H₂₀N₂
MW: 240.34 g/mol

VQ-043997

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