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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

Bisphenol F bis(3-chloro-2-hydroxypropyl) ether chemical structure

Bisphenol F bis(3-chloro-2-hydroxypropyl) ether

CAS: 235741-59-0
Formula: C₁₉H₂₂Cl₂O₄
MW: 385.3 g/mol

VQ-052335

Reference Standard

Bisphenol F Diglycidyl Ether chemical structure

Bisphenol F Diglycidyl Ether

CAS: 2095-03-6
Formula: C₁₉H₂₀O₄
MW: 312.4 g/mol

VQ-029455

Reference Standard

Bisphenol F-d10 chemical structure

Bisphenol F-d10

CAS: 1794786-93-8
Formula: C₁₃H₁₂O₂
MW: 210.29 g/mol

VQ-041207

Reference Standard

Bisphenol S 2,2',3,3',5,5',6,6'-d8 chemical structure

Bisphenol S 2,2',3,3',5,5',6,6'-d8

CAS: 2483831-28-1
Formula: C₁₂H₁₀O₄S
MW: 258.32 g/mol

VQ-041238

Reference Standard

Bispyridoxine chemical structure

CAS: 19203-56-6
Formula: C₁₆H₂₀N₂O₅
MW: 320.34 g/mol

VQ-033392

Reference Standard

Bisthiophenyl tetrahydrofuran chemical structure

Bisthiophenyl tetrahydrofuran

CAS: 1253297-73-2
Formula: C₁₄H₁₆OS₂
MW: 264.4 g/mol

VQ-028345

Reference Standard

Bithionol Sulfoxide chemical structure

Bithionol Sulfoxide

CAS: 844-26-8
Formula: C₁₂H₆Cl₄O₃S
MW: 372 g/mol

VQ-043070

Reference Standard

Bivalirudin

CAS: 128270-60-0
Formula: C₉₈H₁₃₈N₂₄O₃₃
MW: 2180.3 g/mol

VQ-043071

Reference Standard

Bivalirudin D-Asn Impurity

Bivalirudin D-Asn Impurity

CAS: 1310025-28-5
Formula: C₉₈H₁₃₈N₂₄O₃₃
MW: 2180.32 g/mol

VQ-035992

Reference Standard

Bleomycin chemical structure

CAS: 11056-06-7
Formula: C₅₅H₈₄N₁₇O₂₁S₃⁺
MW: 1415.6 g/mol

VQ-043073

Reference Standard

Bleomycin A2 Chloride chemical structure

Bleomycin A2 Chloride

CAS: 49830-49-1
Formula: C₅₅H₈₄ClN₁₇O₂₁S₃
MW: 1451 g/mol

VQ-035993

Reference Standard

Bleomycin A5 chemical structure

CAS: 11116-32-8
Formula: C₅₇H₈₉N₁₉O₂₁S₂
MW: 1440.6 g/mol

VQ-035995

Reference Standard

Bleomycin A5 Hydrochloride chemical structure

Bleomycin A5 Hydrochloride

CAS: 55658-47-4
Formula: C₅₇H₉₀ClN₁₉O₂₁S₂
MW: 1477 g/mol

VQ-029461

Reference Standard

Bleomycin Acid chemical structure

CAS: 37364-66-2
Formula: C₅₀H₇₂N₁₆O₂₂S₂
MW: 1313.3 g/mol

VQ-029464

Reference Standard

Bleomycin B2 chemical structure

CAS: 9060-10-0
Formula: C₅₅H₈₄N₂₀O₂₁S₂
MW: 1425.5 g/mol

VQ-035994

Reference Standard

Bleomycin B4 chemical structure

CAS: 9060-11-1
Formula: C₆₀H₉₅N₂₃O₂₁S₂
MW: 1538.7 g/mol

VQ-029463

Reference Standard

Bleomycin Sulfate chemical structure

Bleomycin Sulfate

CAS: 9041-93-4
Formula: C₅₅H₈₆N₁₇O₂₅S₄⁺
MW: 1513.6 g/mol

VQ-024612

Reference Standard

Blonanserin chemical structure

CAS: 132810-10-7
Formula: C₂₃H₃₀FN₃
MW: 367.5 g/mol

VQ-029465

Reference Standard

Blonanserin C chemical structure

CAS: 132811-84-8
Formula: C₂₁H₂₆FN₃
MW: 339.4 g/mol

VQ-024613

Reference Standard

Blonanserin Impurity 3 chemical structure

Blonanserin Impurity 3

CAS: 2518376-10-6
Formula: C₁₇H₁₉FN₂
MW: 270.34 g/mol

VQ-035998

Reference Standard

Blonanserin Metabolite 5 chemical structure

Blonanserin Metabolite 5

CAS: 2243798-59-4
Formula: C₂₁H₂₈FN₃
MW: 341.5 g/mol

VQ-035997

Reference Standard

Blonanserin N-Oxide chemical structure

Blonanserin N-Oxide

CAS: 142838-82-2
Formula: C₂₃H₃₀FN₃O
MW: 383.5 g/mol

VQ-032715

Reference Standard

Boc-(R)-3-Amino-4-phenylbutyric acid chemical structure

Boc-(R)-3-Amino-4-phenylbutyric acid

CAS: 101555-61-7
Formula: C₁₅H₂₁NO₄
MW: 279.33 g/mol

VQ-032498

Reference Standard

Boc-3-hydroxy-1-adamantyl-D-glycine chemical structure

Boc-3-hydroxy-1-adamantyl-D-glycine

CAS: 361442-00-4
Formula: C₁₇H₂₇NO₅
MW: 325.4 g/mol

VQ-027088

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