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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

Phenylperidol chemical structure

CAS: 1347289-37-5
Formula: C₂₇H₂₈FNO₂
MW: 417.5 g/mol

VQ-026047

Reference Standard

Phloroglucide chemical structure

CAS: 491-45-2
Formula: C₁₂H₁₀O₅
MW: 234.2 g/mol

VQ-029168

Reference Standard

Phloroglucinol - Impurity O chemical structure

Phloroglucinol - Impurity O

CAS: 137-19-9
Formula: C₆H₄Cl₂O₂
MW: 179 g/mol

VQ-032593

Reference Standard

Phosphocreatinine chemical structure

Phosphocreatinine

CAS: 5786-71-0
Formula: C₄H₈N₃O₄P
MW: 193.1 g/mol

VQ-032772

Reference Standard

Phthalic Hydrazide chemical structure

Phthalic Hydrazide

CAS: 1445-69-8
Formula: C₈H₆N₂O₂
MW: 162.15 g/mol

VQ-027071

Reference Standard

Phthalimidoacetaldehyde chemical structure

Phthalimidoacetaldehyde

CAS: 2913-97-5
Formula: C₁₀H₇NO₃
MW: 189.17 g/mol

VQ-043700

Reference Standard

Phyllochromenol chemical structure

Phyllochromenol

CAS: 19274-66-9
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-041469

Reference Standard

Physcion chemical structure

CAS: 521-61-9
Formula: C₁₆H₁₂O₅
MW: 284.26 g/mol

VQ-032829

Reference Standard

Phytonadione Impurity E chemical structure

Phytonadione Impurity E

CAS: 79082-96-5
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-044210

Reference Standard

Phytonadione Trans-IV chemical structure

Phytonadione Trans-IV

CAS: 132487-94-6
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-033170

Reference Standard

Phytyl trimethylhydroquinone diacetate chemical structure

Phytyl trimethylhydroquinone diacetate

CAS: 85314-71-2
Formula: C₃₃H₅₄O₄
MW: 514.8 g/mol

VQ-032903

Reference Standard

Pidotimod Ethyl Ester chemical structure

Pidotimod Ethyl Ester

CAS: 135124-63-9
Formula: C₁₁H₁₆N₂O₄S
MW: 272.32 g/mol

VQ-023488

Reference Standard

Pidotimod impurity A chemical structure

Pidotimod impurity A

CAS: 14842-41-2
Formula: C₁₀H₁₀N₂O₄
MW: 222.2 g/mol

VQ-027478

Reference Standard

Pidotimod impurity B chemical structure

Pidotimod impurity B

CAS: 72744-67-3
Formula: C₈H₁₀N₂O₂S₂
MW: 230.3 g/mol

VQ-033177

Reference Standard

Pidotimod impurity D chemical structure

Pidotimod impurity D

CAS: 162148-15-4
Formula: C₉H₁₂N₂O₄S
MW: 244.27 g/mol

VQ-027481

Reference Standard

Pidotimod impurity E chemical structure

Pidotimod impurity E

CAS: 162148-16-5
Formula: C₉H₁₂N₂O₄S
MW: 244.27 g/mol

VQ-027480

Reference Standard

Pidotimod impurity X chemical structure

Pidotimod impurity X

CAS: 161771-75-1
Formula: C₉H₁₂N₂O₄S
MW: 244.27 g/mol

VQ-033176

Reference Standard

Pidotimod impurity Y chemical structure

Pidotimod impurity Y

CAS: 161771-76-2
Formula: C₉H₁₀N₂O₃S
MW: 226.25 g/mol

VQ-041478

Reference Standard

Pilocarpic Acid Sodium Salt chemical structure

Pilocarpic Acid Sodium Salt

CAS: 92598-79-3
Formula: C₁₁H₁₇N₂NaO₃
MW: 248.25 g/mol

VQ-033180

Reference Standard

Pimecrolimus Triene Analog chemical structure

Pimecrolimus Triene Analog

CAS: 148147-41-5
Formula: C₄₃H₆₇NO₁₁
MW: 774 g/mol

VQ-027498

Reference Standard

Pimozide Impurity 5 chemical structure

Pimozide Impurity 5

CAS: 1121585-10-1
Formula: C₁₆H₁₆F₂
MW: 246.29 g/mol

VQ-030830

Reference Standard

Pimozide Olefin

Pimozide Olefin

CAS: 1347746-73-9
Formula: C₂₈H₂₇F₂N₃O
MW: 459.54 g/mol

VQ-035208

Reference Standard

Pinaverium 1,2-Bis(bromomethyl) Impurity chemical structure

Pinaverium 1,2-Bis(bromomethyl) Impurity

CAS: 26726-81-8
Formula: C₁₀H₁₂Br₂O₂
MW: 324.01 g/mol

VQ-031315

Reference Standard

Pinaverium bromide cis-2-ethanol impurity chemical structure

Pinaverium bromide cis-2-ethanol impurity

CAS: 151825-17-1
Formula: C₁₁H₂₀O
MW: 168.28 g/mol

VQ-033189

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