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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

Fingolimod Nonyl Impurity chemical structure

Fingolimod Nonyl Impurity

CAS: 746594-44-5
Formula: C₂₀H₃₅NO₂
MW: 321.5 g/mol

VQ-005001

Reference Standard

Fingolimod Nonyl Impurity (Stage-1)

Fingolimod Nonyl Impurity (Stage-1)

Formula: C₁₈H₂₇ClO
MW: 294.86 g/mol

In stock

Reference Standard

Fingolimod O-Acetyl Impurity chemical structure

Fingolimod O-Acetyl Impurity

CAS: 1807973-92-7
Formula: C₂₁H₃₅NO₃
MW: 349.5 g/mol

In stock

Reference Standard

Fingolimod O-Acetyl Impurity (N-1) Stage

Fingolimod O-Acetyl Impurity (N-1) Stage

Formula: C₂₄H₂₉NO₃
MW: 379.49 g/mol

In stock

Reference Standard

Fingolimod phosphate chemical structure

Fingolimod phosphate

CAS: 402615-91-2
Formula: C₁₉H₃₄NO₅P
MW: 387.5 g/mol

VQ-030747

Reference Standard

Fingolimod-d4 chemical structure

CAS: 1346747-38-3
Formula: C₁₉H₃₃NO₂
MW: 311.5 g/mol

VQ-037290

Reference Standard

Fingolimod-d4 Hydrochloride chemical structure

Fingolimod-d4 Hydrochloride

CAS: 1346604-90-7
Formula: C₁₉H₃₄ClNO₂
MW: 348 g/mol

VQ-037289

Reference Standard

Fingolimode Heptan Impurity (Hydrochloride)

Fingolimode Heptan Impurity (Hydrochloride)

Formula: C₁₆H₂₇NO₂.ClH
MW: 301.85 g/mol

In stock

Reference Standard

Fipronil chemical structure

CAS: 120068-37-3
Formula: C₁₂H₄Cl₂F₆N₄OS
MW: 437.1 g/mol

VQ-025796

Reference Standard

Fipronil Sulfide chemical structure

Fipronil Sulfide

CAS: 120067-83-6
Formula: C₁₂H₄Cl₂F₆N₄S
MW: 421.1 g/mol

VQ-025797

Reference Standard

Fipronil Sulfone chemical structure

Fipronil Sulfone

CAS: 120068-36-2
Formula: C₁₂H₄Cl₂F₆N₄O₂S
MW: 453.1 g/mol

VQ-034835

Reference Standard

Firocoxib chemical structure

CAS: 189954-96-9
Formula: C₁₇H₂₀O₅S
MW: 336.4 g/mol

In stock

Reference Standard

Firocoxib cyclobutane derivative

Firocoxib cyclobutane derivative

CAS: 189955-22-4
Formula: C₁₇H₂₀O₅S
MW: 336.4 g/mol

VQ-030754

Reference Standard

Firocoxib D4 chemical structure

CAS: 1325700-11-5
Formula: C₁₇H₂₀O₅S
MW: 340.4 g/mol

VQ-037295

Reference Standard

Firocoxib D6 chemical structure

CAS: 1353853-37-8
Formula: C₁₇H₂₀O₅S
MW: 342.4 g/mol

VQ-048398

Reference Standard

Firocoxib Impurity 1 chemical structure

Firocoxib Impurity 1

CAS: 180048-73-1
Formula: C₁₁H₁₄O₄S
MW: 242.29 g/mol

VQ-037292

Reference Standard

Firocoxib Impurity 3

Firocoxib Impurity 3

CAS: 246869-18-1
Formula: C₁₅H₁₈O₅S
MW: 310.37 g/mol

VQ-048397

Reference Standard

Firocoxib Sulfoxide

Firocoxib Sulfoxide

Formula: C₁₇H₂₀O₄S
MW: 320.4 g/mol

In stock

Reference Standard

Fispemifene chemical structure

CAS: 341524-89-8
Formula: C₂₆H₂₇ClO₃
MW: 422.9 g/mol

VQ-049366

Reference Standard

Flavan chemical structure

CAS: 494-12-2
Formula: C₁₅H₁₄O
MW: 210.27 g/mol

VQ-041709

Reference Standard

Flavomycin chemical structure

CAS: 11015-37-5
Formula: C₆₉H₁₀₇N₄O₃₅P
MW: 1583.6 g/mol

VQ-032425

Reference Standard

Flavone chemical structure

CAS: 525-82-6
Formula: C₁₅H₁₀O₂
MW: 222.24 g/mol

VQ-041708

Reference Standard

Flavoxate EP Impurity A chemical structure

Flavoxate EP Impurity A

CAS: 3468-01-7
Formula: C₁₇H₁₂O₄
MW: 280.27 g/mol

VQ-022649

Reference Standard

Flavoxate EP Impurity C chemical structure

Flavoxate EP Impurity C

CAS: 1286165-14-7
Formula: C₂₀H₁₈O₄
MW: 322.4 g/mol

VQ-025801

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