Skip to content

Product division

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

Baricitinib Impurity-G chemical structure

Baricitinib Impurity-G

CAS: 2964606-44-6
Formula: C₁₅H₁₅N₇O₂S
MW: 357.4 g/mol

In stock

Reference Standard

Baricitinib Impurity-I chemical structure

Baricitinib Impurity-I

CAS: 2964606-42-4
Formula: C₁₅H₁₇N₇O₄S
MW: 391.4 g/mol

In stock

Reference Standard

Baricitinib Nitroso Impurity A chemical structure

Baricitinib Nitroso Impurity A

Formula: C₁₄H₁₂N₈O
MW: 308.3 g/mol

In stock

Reference Standard

Baricitinib Sulfonyl Impurity chemical structure

Baricitinib Sulfonyl Impurity

CAS: 1187594-13-3
Formula: C₂₂H₃₁N₇O₃SSi
MW: 501.7 g/mol

In stock

Reference Standard

Baricitinib WS chemical structure

CAS: 1187594-09-7
Formula: C₁₆H₁₇N₇O₂S
MW: 371.4 g/mol

In stock

Reference Standard

Baricitinib-D4 (azetidine-2,2-d2)(Ethyl-1,1-d2)

Baricitinib-D4 (azetidine-2,2-d2)(Ethyl-1,1-d2)

CAS: 1564241-55-9
Formula: C₁₆H₁₃D₄N₇O₂S
MW: 375.4 g/mol

VQ-045381

Reference Standard

Baricitinib-d5 chemical structure

CAS: 1564241-79-7
Formula: C₁₆H₁₇N₇O₂S
MW: 376.5 g/mol

VQ-024500

Reference Standard

Barnidipine chemical structure

CAS: 104713-75-9
Formula: C₂₇H₂₉N₃O₆
MW: 491.5 g/mol

VQ-044826

Reference Standard

Barnidipine D5 chemical structure

CAS: 2771469-19-1
Formula: C₂₇H₂₉N₃O₆
MW: 496.6 g/mol

VQ-047525

Reference Standard

Barnidipine Ethyl derivate

Barnidipine Ethyl derivate

CAS: 1621461-58-2
Formula: C₂₈H₃₁N₃O₆
MW: 505.56 g/mol

VQ-021737

Reference Standard

Barnidipine Hydrochloride chemical structure

Barnidipine Hydrochloride

CAS: 104757-53-1
Formula: C₂₇H₃₀ClN₃O₆
MW: 528 g/mol

VQ-024501

Reference Standard

Basifungin chemical structure

CAS: 127785-64-2
Formula: C₆₀H₉₂N₈O₁₁
MW: 1101.4 g/mol

VQ-041049

Reference Standard

Bavdegalutamide chemical structure

Bavdegalutamide

CAS: 2222112-77-6
Formula: C₄₁H₄₃ClFN₉O₆
MW: 812.3 g/mol

VQ-051747

Reference Standard

Bazedoxifene chemical structure

CAS: 198481-32-2
Formula: C₃₀H₃₄N₂O₃
MW: 470.6 g/mol

In stock

Reference Standard

Bazedoxifene 5-beta-D-Glucuronide chemical structure

Bazedoxifene 5-beta-D-Glucuronide

CAS: 328933-56-8
Formula: C₃₆H₄₂N₂O₉
MW: 646.7 g/mol

VQ-047529

Reference Standard

Bazedoxifene 5-O-Benzyl Impurity chemical structure

Bazedoxifene 5-O-Benzyl Impurity

CAS: 328933-58-0
Formula: C₃₇H₄₀N₂O₃
MW: 560.7 g/mol

VQ-034793

Reference Standard

Bazedoxifene acetate chemical structure

Bazedoxifene acetate

CAS: 198481-33-3
Formula: C₃₂H₃₈N₂O₅
MW: 530.7 g/mol

VQ-029357

Reference Standard

Bazedoxifene Acetate Impurity 1 chemical structure

Bazedoxifene Acetate Impurity 1

CAS: 223251-16-9
Formula: C₁₅H₂₃NO₂
MW: 249.35 g/mol

In stock

Reference Standard

Bazedoxifene Dihydroxy Indole Impurity chemical structure

Bazedoxifene Dihydroxy Indole Impurity

CAS: 91444-54-1
Formula: C₁₅H₁₃NO₂
MW: 239.27 g/mol

In stock

Reference Standard

Bazedoxifene impurity 1 chemical structure

Bazedoxifene impurity 1

CAS: 1802552-29-9
Formula: C₄₄H₄₆N₂O₃
MW: 650.8 g/mol

VQ-047526

Reference Standard

Bazedoxifene-4`-Glucuronide chemical structure

Bazedoxifene-4`-Glucuronide

CAS: 328933-64-8
Formula: C₃₆H₄₂N₂O₉
MW: 646.7 g/mol

VQ-047528

Reference Standard

Bazedoxifene-d4 chemical structure

Bazedoxifene-d4

CAS: 1133695-49-4
Formula: C₃₀H₃₄N₂O₃
MW: 474.6 g/mol

VQ-035916

Reference Standard

Bazedoxifene-N-Oxide chemical structure

Bazedoxifene-N-Oxide

CAS: 1174289-22-5
Formula: C₃₀H₃₄N₂O₄
MW: 486.6 g/mol

VQ-024503

Reference Standard

Beclometasone Dipropionate EP Impurity A chemical structure

Beclometasone Dipropionate EP Impurity A

CAS: 69224-79-9
Formula: C₂₅H₃₃ClO₆
MW: 465 g/mol

VQ-020902

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.

Request a quote Contact sales