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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

cis-Capsaicin chemical structure

CAS: 25775-90-0
Formula: C₁₈H₂₇NO₃
MW: 305.4 g/mol

VQ-024756

Reference Standard

cis-Clomiphene chemical structure

CAS: 15690-55-8
Formula: C₂₆H₂₈ClNO
MW: 406 g/mol

VQ-025042

Reference Standard

cis-Clopidogrel-MP Derivative (Pair of Enantiomers) chemical structure

cis-Clopidogrel-MP Derivative (Pair of Enantiomers)

CAS: 1122047-98-6
Formula: C₂₅H₂₆ClNO₆S
MW: 504 g/mol

VQ-036411

Reference Standard

cis-Cyclohexane-1,4-dicarbonitrile chemical structure

cis-Cyclohexane-1,4-dicarbonitrile

CAS: 6550-96-5
Formula: C₈H₁₀N₂
MW: 134.18 g/mol

VQ-039436

Reference Standard

Cis-Cypromine chemical structure

CAS: 13531-35-6
Formula: C₉H₁₁N
MW: 133.19 g/mol

VQ-034392

Reference Standard

cis-Diiododiammineplatinum(II) chemical structure

cis-Diiododiammineplatinum(II)

CAS: 15978-93-5
Formula: H₆I₂N₂Pt
MW: 482.95 g/mol

VQ-029645

Reference Standard

cis-Halofuginone chemical structure

cis-Halofuginone

CAS: 1273594-72-1
Formula: C₁₆H₁₇BrClN₃O₃
MW: 414.7 g/mol

VQ-048569

Reference Standard

cis-Monoacrylate Atracurium Besylate chemical structure

cis-Monoacrylate Atracurium Besylate

CAS: 2803857-42-1
Formula: C₃₈H₄₉NO₁₁S
MW: 727.9 g/mol

VQ-029282

Reference Standard

cis-N-Methyl-4-(methyl-7H-pyrrolo[2, 3-d]pyrimidin-4-ylamino)cyclohexanemethanesulfonamide chemical structure

cis-N-Methyl-4-(methyl-7H-pyrrolo[2, 3-d]pyrimidin-4-ylamino)cyclohexanemethanesulfonamide

CAS: 1538596-97-2
Formula: C₃₀H₄₆N₁₀O₄S₂
MW: 674.9 g/mol

VQ-038714

Reference Standard

Cis-Nabilone chemical structure

CAS: 56469-15-9
Formula: C₂₄H₃₆O₃
MW: 372.5 g/mol

VQ-038532

Reference Standard

Cis-Naftifine chemical structure

CAS: 79416-70-9
Formula: C₂₁H₂₁N
MW: 287.4 g/mol

VQ-026816

Reference Standard

Cis-Nerolidol chemical structure

CAS: 3790-78-1
Formula: C₁₅H₂₆O
MW: 222.37 g/mol

VQ-039014

Reference Standard

cis-Ormeloxifene chemical structure

cis-Ormeloxifene

CAS: 51423-20-2
Formula: C₃₀H₃₅NO₃
MW: 457.6 g/mol

VQ-049338

Reference Standard

cis-Ormeloxifene hydrochloride chemical structure

cis-Ormeloxifene hydrochloride

CAS: 51423-19-9
Formula: C₃₀H₃₆ClNO₃
MW: 494.1 g/mol

VQ-032285

Reference Standard

Cis-Permethric Acid chemical structure

Cis-Permethric Acid

CAS: 59042-49-8
Formula: C₈H₁₀Cl₂O₂
MW: 209.07 g/mol

VQ-033139

Reference Standard

cis-Permethrin chemical structure

CAS: 61949-76-6
Formula: C₂₁H₂₀Cl₂O₃
MW: 391.3 g/mol

VQ-033141

Reference Standard

cis-Propenylphosphonic Acid (R)-(+)-a-Methylbenzylamine Salt chemical structure

cis-Propenylphosphonic Acid (R)-(+)-a-Methylbenzylamine Salt

CAS: 933443-26-6
Formula: C₁₁H₁₈NO₃P
MW: 243.24 g/mol

VQ-044495

Reference Standard

cis-Resveratrol chemical structure

cis-Resveratrol

CAS: 61434-67-1
Formula: C₁₄H₁₂O₃
MW: 228.24 g/mol

VQ-023625

Reference Standard

Cis-Terbinafine Hydrochloride chemical structure

Cis-Terbinafine Hydrochloride

CAS: 176168-78-8
Formula: C₂₁H₂₆ClN
MW: 327.9 g/mol

VQ-042438

Reference Standard

Cis-Tosylate chemical structure

CAS: 154003-23-3
Formula: C₂₁H₂₀Cl₂N₂O₅S
MW: 483.4 g/mol

VQ-026291

Reference Standard

Cis-Tosylate Ketoconazole chemical structure

Cis-Tosylate Ketoconazole

CAS: 2095256-87-2
Formula: C₂₁H₂₀Cl₂N₂O₅S
MW: 483.4 g/mol

VQ-031373

Reference Standard

cis-Tranylcypromine Hydrochloride chemical structure

cis-Tranylcypromine Hydrochloride

CAS: 54779-58-7
Formula: C₉H₁₂ClN
MW: 169.65 g/mol

VQ-034390

Reference Standard

Cis-Vitamin K1 chemical structure

CAS: 16033-41-3
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-032442

Reference Standard

cis-Vitamin K2 chemical structure

CAS: 65061-19-0
Formula: C₃₁H₄₀O₂
MW: 444.6 g/mol

VQ-034670

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