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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

Flonicamid chemical structure

CAS: 158062-67-0
Formula: C₉H₆F₃N₃O
MW: 229.16 g/mol

VQ-030760

Reference Standard

Florasulam chemical structure

CAS: 145701-23-1
Formula: C₁₂H₈F₃N₅O₃S
MW: 359.29 g/mol

VQ-032660

Reference Standard

Florfenicol Amine chemical structure

Florfenicol Amine

CAS: 76639-93-5
Formula: C₁₀H₁₄FNO₃S
MW: 247.29 g/mol

VQ-030761

Reference Standard

Florfenicol amine-d3- (methyl-d3) chemical structure

Florfenicol amine-d3- (methyl-d3)

CAS: 3023974-39-9
Formula: C₁₀H₁₄FNO₃S
MW: 250.31 g/mol

VQ-048406

Reference Standard

Florfenicol Chloro Analogue chemical structure

Florfenicol Chloro Analogue

CAS: 1322625-10-4
Formula: C₁₂H₁₄Cl₃NO₄S
MW: 374.7 g/mol

VQ-030764

Reference Standard

Florfenicol Fluorinated Substance

Florfenicol Fluorinated Substance

CAS: 143026-79-3
Formula: C₁₂H₁₂Cl₂FNO₃S
MW: 340.2 g/mol

VQ-030763

Reference Standard

Florfenicol-D4 chemical structure

CAS: 163340-45-2
Formula: C₆H₁₅NO₄
MW: 165.19 g/mol

VQ-030765

Reference Standard

Fluazinam chemical structure

CAS: 79622-59-6
Formula: C₁₃H₄Cl₂F₆N₄O₄
MW: 465.09 g/mol

VQ-030766

Reference Standard

Fluazinam Impurity 1 chemical structure

Fluazinam Impurity 1

CAS: 169327-87-1
Formula: C₁₃H₄Cl₂F₆N₄O₄
MW: 465.09 g/mol

VQ-030767

Reference Standard

Fluazuron chemical structure

CAS: 86811-58-7
Formula: C₂₀H₁₀Cl₂F₅N₃O₃
MW: 506.2 g/mol

VQ-030768

Reference Standard

Flubendazole chemical structure

CAS: 31430-15-6
Formula: C₁₆H₁₂FN₃O₃
MW: 313.28 g/mol

VQ-025807

Reference Standard

Flubendazole EP Impurity B chemical structure

Flubendazole EP Impurity B

CAS: 82050-13-3
Formula: C₁₄H₁₀FN₃O
MW: 255.25 g/mol

VQ-025809

Reference Standard

Flubendazole EP Impurity C chemical structure

Flubendazole EP Impurity C

CAS: 1097107-40-8
Formula: C₁₄H₉FN₂O₂
MW: 256.23 g/mol

VQ-034836

Reference Standard

Flubendazole EP Impurity D chemical structure

Flubendazole EP Impurity D

CAS: 1515807-30-3
Formula: C₁₄H₉FN₂O
MW: 240.23 g/mol

VQ-034837

Reference Standard

Flubendazole EP Impurity E chemical structure

Flubendazole EP Impurity E

CAS: 66939-00-2
Formula: C₁₆H₁₂FN₃O₃
MW: 313.28 g/mol

VQ-025808

Reference Standard

Flubendazole EP Impurity F chemical structure

Flubendazole EP Impurity F

CAS: 132119-20-1
Formula: C₁₇H₁₄FN₃O₃
MW: 327.31 g/mol

VQ-035105

Reference Standard

Flubendiamide chemical structure

CAS: 272451-65-7
Formula: C₂₃H₂₂F₇IN₂O₄S
MW: 682.4 g/mol

VQ-039687

Reference Standard

Flucloxacillin chemical structure

CAS: 5250-39-5
Formula: C₁₉H₁₇ClFN₃O₅S
MW: 453.9 g/mol

VQ-034838

Reference Standard

Flucloxacillin EP Impurity A Sodium chemical structure

Flucloxacillin EP Impurity A Sodium

CAS: 68728-50-7
Formula: C₁₉H₁₉ClFN₃NaO₆S
MW: 494.9 g/mol

VQ-037312

Reference Standard

Flucloxacillin EP Impurity B chemical structure

Flucloxacillin EP Impurity B

CAS: 1276016-89-7
Formula: C₁₈H₁₉ClFN₃O₄S
MW: 427.9 g/mol

VQ-022655

Reference Standard

Flucloxacillin EP Impurity D chemical structure

Flucloxacillin EP Impurity D

CAS: 3919-74-2
Formula: C₁₁H₇ClFNO₃
MW: 255.63 g/mol

VQ-022654

Reference Standard

Flucloxacillin EP Impurity F chemical structure

Flucloxacillin EP Impurity F

CAS: 866150-92-7
Formula: C₁₃H₁₀ClFN₂O₄
MW: 312.68 g/mol

VQ-022656

Reference Standard

Flucloxacillin Sodium chemical structure

Flucloxacillin Sodium

CAS: 1847-24-1
Formula: C₁₉H₁₆ClFN₃NaO₅S
MW: 475.9 g/mol

VQ-034839

Reference Standard

Flucloxacillin Sodium Hydrate chemical structure

Flucloxacillin Sodium Hydrate

CAS: 34214-51-2
Formula: C₁₉H₁₈ClFN₃NaO₆S
MW: 493.9 g/mol

VQ-030769

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