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.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

Perospirone Impurity 1 chemical structure

Perospirone Impurity 1

CAS: 87691-94-9
Formula: C₁₅H₂₀BrN₃S
MW: 354.3 g/mol

VQ-041428

Reference Standard

Perphenazine chemical structure

CAS: 58-39-9
Formula: C₂₁H₂₆ClN₃OS
MW: 404 g/mol

VQ-023485

Reference Standard

Perphenazine 14 N-Oxide

Perphenazine 14 N-Oxide

CAS: 1254074-25-3
Formula: C₂₁H₂₆ClN₃O₂S
MW: 419.97 g/mol

VQ-033142

Reference Standard

Perphenazine 17-N-Oxide chemical structure

Perphenazine 17-N-Oxide

CAS: 803615-00-1
Formula: C₂₁H₂₆ClN₃O₂S
MW: 420 g/mol

VQ-033143

Reference Standard

Perphenazine EP Impurity A chemical structure

Perphenazine EP Impurity A

CAS: 10078-25-8
Formula: C₂₁H₂₆ClN₃O₂S
MW: 420 g/mol

VQ-023486

Reference Standard

Perphenazine EP Impurity B chemical structure

Perphenazine EP Impurity B

CAS: 3533-97-9
Formula: C₂₁H₂₇N₃OS
MW: 369.5 g/mol

VQ-023487

Reference Standard

Perphenazine-D4 chemical structure

Perphenazine-D4

CAS: 155593-75-2
Formula: C₂₁H₂₆ClN₃OS
MW: 408 g/mol

VQ-041430

Reference Standard

Perylene-d12 chemical structure

CAS: 1520-96-3
Formula: C₂₀H₁₂
MW: 264.4 g/mol

VQ-041164

Reference Standard

Petunidin chloride chemical structure

Petunidin chloride

CAS: 1429-30-7
Formula: C₁₆H₁₃ClO₇
MW: 352.72 g/mol

VQ-040416

Reference Standard

Pharacine chemical structure

CAS: 63440-93-7
Formula: C₂₄H₂₄O₈
MW: 440.4 g/mol

VQ-032464

Reference Standard

Phenanthrene-d10 chemical structure

Phenanthrene-d10

CAS: 1517-22-2
Formula: C₁₄H₁₀
MW: 188.29 g/mol

VQ-041128

Reference Standard

Phenazin-1(5H)-imine chemical structure

Phenazin-1(5H)-imine

CAS: 755710-53-3
Formula: C₁₂H₉N₃
MW: 195.22 g/mol

VQ-029864

Reference Standard

Phenazopyridine chemical structure

Phenazopyridine

CAS: 94-78-0
Formula: C₁₁H₁₁N₅
MW: 213.24 g/mol

VQ-039284

Reference Standard

Phenazopyridine-d5 chemical structure

Phenazopyridine-d5

CAS: 1287380-98-6
Formula: C₁₁H₁₁N₅
MW: 218.27 g/mol

VQ-041435

Reference Standard

Phenelzine Sulfate chemical structure

Phenelzine Sulfate

CAS: 156-51-4
Formula: C₈H₁₄N₂O₄S
MW: 234.28 g/mol

VQ-041436

Reference Standard

Phenethyl Carbamate chemical structure

Phenethyl Carbamate

CAS: 6326-19-8
Formula: C₉H₁₁NO₂
MW: 165.19 g/mol

VQ-025748

Reference Standard

Phenethyl Isocyanate chemical structure

Phenethyl Isocyanate

CAS: 1943-82-4
Formula: C₉H₉NO
MW: 147.17 g/mol

VQ-032966

Reference Standard

Phenibut Hydrochloride chemical structure

Phenibut Hydrochloride

CAS: 3060-41-1
Formula: C₁₀H₁₄ClNO₂
MW: 215.67 g/mol

VQ-041438

Reference Standard

Phenindione chemical structure

CAS: 83-12-5
Formula: C₁₅H₁₀O₂
MW: 222.24 g/mol

VQ-041439

Reference Standard

Pheniramine chemical structure

CAS: 86-21-5
Formula: C₁₆H₂₀N₂
MW: 240.34 g/mol

VQ-022155

Reference Standard

Pheniramine EP Impurity A chemical structure

Pheniramine EP Impurity A

CAS: 101-82-6
Formula: C₁₂H₁₁N
MW: 169.22 g/mol

VQ-027457

Reference Standard

Pheniramine EP Impurity B chemical structure

Pheniramine EP Impurity B

CAS: 2116-65-6
Formula: C₁₂H₁₁N
MW: 169.22 g/mol

VQ-027458

Reference Standard

Pheniramine EP Impurity D chemical structure

Pheniramine EP Impurity D

CAS: 2724689-48-7
Formula: C₂₀H₃₁Cl₂N₃
MW: 384.4 g/mol

VQ-033148

Reference Standard

Pheniramine Maleate - Impurity C (Freebase) chemical structure

Pheniramine Maleate - Impurity C (Freebase)

CAS: 109090-39-3
Formula: C₁₅H₁₇N₃O₂
MW: 271.31 g/mol

VQ-041440

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