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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

Octachlorodibenzo-p-dioxin chemical structure

Octachlorodibenzo-p-dioxin

CAS: 3268-87-9
Formula: C₁₂Cl₈O₂
MW: 459.7 g/mol

VQ-039048

Reference Standard

Octadecamethylcyclononasiloxane chemical structure

Octadecamethylcyclononasiloxane

CAS: 556-71-8
Formula: C₁₈H₅₄O₉Si₉
MW: 667.4 g/mol

VQ-032524

Reference Standard

Octakis-(6-bromo-6-deoxy)-γ-cyclodextrin chemical structure

Octakis-(6-bromo-6-deoxy)-γ-cyclodextrin

CAS: 53784-84-2
Formula: C₄₈H₇₂Br₈O₃₂
MW: 1800.3 g/mol

VQ-033958

Reference Standard

Octamethyl-1,7-tetrasiloxanediol chemical structure

Octamethyl-1,7-tetrasiloxanediol

CAS: 3081-07-0
Formula: C₈H₂₆O₅Si₄
MW: 314.63 g/mol

VQ-033859

Reference Standard

Octreotide Diacetate chemical structure

Octreotide Diacetate

CAS: 622838-44-2
Formula: C₅₃H₇₄N₁₀O₁₄S₂
MW: 1139.3 g/mol

VQ-044162

Reference Standard

Octyl Orlistat chemical structure

CAS: 1243011-56-4
Formula: C₃₁H₅₇NO₅
MW: 523.8 g/mol

VQ-044704

Reference Standard

Ofloxacin Desfluoro Acid Impurity

Ofloxacin Desfluoro Acid Impurity

CAS: 56346-18-0
Formula: C₁₃H₁₀FNO₄
MW: 263.22 g/mol

In stock

Reference Standard

Ofloxacin Dihydrooxazole Impurity chemical structure

Ofloxacin Dihydrooxazole Impurity

CAS: 2489671-28-3
Formula: C₁₈H₂₀FN₃O₄
MW: 361.4 g/mol

VQ-023317

Reference Standard

Olanzapine Amine Impurity chemical structure

Olanzapine Amine Impurity

CAS: 138564-60-0
Formula: C₁₂H₁₂ClN₃S
MW: 265.76 g/mol

VQ-005398

Reference Standard

Olanzapine Amine Impurity (Freebase) chemical structure

Olanzapine Amine Impurity (Freebase)

CAS: 612503-08-9
Formula: C₁₂H₁₁N₃S
MW: 229.3 g/mol

In stock

Reference Standard

Olanzapine Amino Impurity chemical structure

Olanzapine Amino Impurity

CAS: 873895-41-1
Formula: C₁₂H₁₁N₃S
MW: 229.3 g/mol

VQ-005400

Reference Standard

Olanzapine Impurity 10 chemical structure

Olanzapine Impurity 10

Formula: C₁₈H₁₂N₄O₄S
MW: 380.4 g/mol

In stock

Reference Standard

Olanzapine Impurity 11

Olanzapine Impurity 11

Formula: C₁₈H₁₄N₄O₂S
MW: 350.39 g/mol

In stock

Reference Standard

Olanzapine Impurity 21 chemical structure

Olanzapine Impurity 21

CAS: 612507-13-8
Formula: C₁₂H₁₀N₂S₂
MW: 246.4 g/mol

In stock

Reference Standard

Olanzapine Lactam Impurity chemical structure

Olanzapine Lactam Impurity

CAS: 1017241-34-7
Formula: C₁₇H₂₀N₄O₂
MW: 312.37 g/mol

VQ-023318

Reference Standard

Olanzapine LIP Dimer chemical structure

Olanzapine LIP Dimer

CAS: 1070876-09-3
Formula: C₂₈H₂₆N₆S₂
MW: 510.7 g/mol

VQ-005404

Reference Standard

Olanzapine LIP-1 Acetyl Impurity chemical structure

Olanzapine LIP-1 Acetyl Impurity

CAS: 935272-10-9
Formula: C₁₈H₂₀N₄OS
MW: 340.4 g/mol

In stock

Reference Standard

Olanzapine N-ethyl Impurity chemical structure

Olanzapine N-ethyl Impurity

CAS: 1797009-17-6
Formula: C₁₈H₂₂N₄S
MW: 326.5 g/mol

VQ-038720

Reference Standard

Olanzapine N-Formyl Impurity chemical structure

Olanzapine N-Formyl Impurity

CAS: 639460-79-0
Formula: C₁₇H₁₈N₄OS
MW: 326.4 g/mol

In stock

Reference Standard

Olanzapine Thioacetoxymethylidene chemical structure

Olanzapine Thioacetoxymethylidene

CAS: 1320360-87-9
Formula: C₁₇H₂₀N₄O₂S
MW: 344.4 g/mol

VQ-023322

Reference Standard

Olanzapine Thiohydroxymethylidene chemical structure

Olanzapine Thiohydroxymethylidene

CAS: 1320360-86-8
Formula: C₁₅H₁₈N₄OS
MW: 302.4 g/mol

VQ-023321

Reference Standard

Olaparib Chloro-Phthalazine Impurity-1 chemical structure

Olaparib Chloro-Phthalazine Impurity-1

Formula: C₂₄H₂₂ClFN₄O₃
MW: 468.9 g/mol

In stock

Reference Standard

Olaparib Chloro-Phthalazine Impurity-2 chemical structure

Olaparib Chloro-Phthalazine Impurity-2

Formula: C₂₄H₂₂ClFN₄O₂
MW: 452.9 g/mol

In stock

Reference Standard

Olaparib Desfluoro Methyl Ester Impurity

Olaparib Desfluoro Methyl Ester Impurity

Formula: C₁₇H₁₄N₂O₃
MW: 294.31 g/mol

In stock

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