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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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Reference Standard

Perampanel Dimer Impurity chemical structure

Perampanel Dimer Impurity

CAS: 2137956-02-4
Formula: C₂₂H₁₆N₂O₂
MW: 340.4 g/mol

VQ-041409

Reference Standard

Perampanel IP Impurity D

Perampanel IP Impurity D

CAS: 3034018-90-8
Formula: C₂₃H₁₄BrN₃O
MW: 428.28 g/mol

VQ-035402

Reference Standard

Perampanel methyl benzoate chemical structure

Perampanel methyl benzoate

CAS: 543699-60-1
Formula: C₂₄H₁₈N₂O₃
MW: 382.4 g/mol

VQ-044716

Reference Standard

Perazine chemical structure

CAS: 84-97-9
Formula: C₂₀H₂₅N₃S
MW: 339.5 g/mol

VQ-023561

Reference Standard

Perazine Dihydrochloride chemical structure

Perazine Dihydrochloride

CAS: 5317-37-3
Formula: C₂₀H₂₇Cl₂N₃S
MW: 412.4 g/mol

VQ-027632

Reference Standard

Perhydroacenaphthene chemical structure

Perhydroacenaphthene

CAS: 2146-36-3
Formula: C₁₂H₂₀
MW: 164.29 g/mol

VQ-032665

Reference Standard

Perhydrofarnesyl Acetone chemical structure

Perhydrofarnesyl Acetone

CAS: 502-69-2
Formula: C₁₈H₃₆O
MW: 268.5 g/mol

VQ-041465

Reference Standard

Perindopril Benzyl Ester chemical structure

Perindopril Benzyl Ester

CAS: 122454-52-8
Formula: C₂₆H₃₈N₂O₅
MW: 458.6 g/mol

VQ-041416

Reference Standard

Perindopril Related Compound 3 HCl chemical structure

Perindopril Related Compound 3 HCl

CAS: 169061-41-0
Formula: C₉H₁₆ClNO₂
MW: 205.68 g/mol

VQ-041418

Reference Standard

Perindopril Side Chain-A Enantiomer Impurity chemical structure

Perindopril Side Chain-A Enantiomer Impurity

CAS: 145682-38-8
Formula: C₁₀H₁₉NO₄
MW: 217.26 g/mol

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Reference Standard

Perindopril Side Chain-B Enantiomer Impurity

Perindopril Side Chain-B Enantiomer Impurity

Formula: C₁₆H₂₁NO₂.C₇H₈O₃S
MW: 431.55 g/mol

In stock

Reference Standard

Permethrin Impurity A chemical structure

Permethrin Impurity A

CAS: 3586-14-9
Formula: C₁₃H₁₂O
MW: 184.23 g/mol

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Reference Standard

Permethrin Impurity B chemical structure

Permethrin Impurity B

CAS: 61898-95-1
Formula: C₉H₁₂Cl₂O₂
MW: 223.09 g/mol

In stock

Reference Standard

Permethrin Impurity C chemical structure

Permethrin Impurity C

CAS: 13826-35-2
Formula: C₁₃H₁₂O₂
MW: 200.23 g/mol

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Reference Standard

Permethrin Impurity C (Potassium Salt)

Permethrin Impurity C (Potassium Salt)

CAS: 25811-16-9
Formula: C₁₃H₁₂O₂.K
MW: 239.34 g/mol

VQ-005524

Reference Standard

Permethrin Impurity C (Sodium Salt)

Permethrin Impurity C (Sodium Salt)

CAS: 77146-29-3
Formula: C₁₃H₁₂O₂.Na
MW: 223.23 g/mol

VQ-005525

Reference Standard

Permethrin Impurity D chemical structure

Permethrin Impurity D

CAS: 39515-51-0
Formula: C₁₃H₁₀O₂
MW: 198.22 g/mol

In stock

Reference Standard

Permethrin Impurity E chemical structure

Permethrin Impurity E

CAS: 53874-66-1
Formula: C₁₃H₁₁ClO
MW: 218.68 g/mol

In stock

Reference Standard

Permethrin Impurity G chemical structure

Permethrin Impurity G

CAS: 85576-82-5
Formula: C₂₁H₁₉ClO₃
MW: 354.8 g/mol

In stock

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

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

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

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