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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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1,516in stock

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Reference Standard

Naratriptan Impurity 2 (Iodide)

Naratriptan Impurity 2 (Iodide)

Formula: C₁₇H₂₀N₃O₂S.I
MW: 457.3 g/mol

VQ-005328

Reference Standard

Naratriptan Impurity 4 Chloride

Naratriptan Impurity 4 Chloride

Formula: C₁₈H₂₈N₃O₂S.Cl
MW: 385.95 g/mol

VQ-005329

Reference Standard

Naratriptan Impurity 4 Iodide

Naratriptan Impurity 4 Iodide

Formula: C₁₈H₂₈N₃O₂S.I
MW: 477.4 g/mol

In stock

Reference Standard

Naratriptan Impurity A chemical structure

Naratriptan Impurity A

CAS: 17403-07-5
Formula: C₁₄H₁₈N₂
MW: 214.31 g/mol

In stock

Reference Standard

Naratriptan Impurity A (Hydrochloride) chemical structure

Naratriptan Impurity A (Hydrochloride)

CAS: 1956385-76-4
Formula: C₁₄H₁₉ClN₂
MW: 250.77 g/mol

In stock

Reference Standard

Naratriptan Impurity C (RRT 1.18) chemical structure

Naratriptan Impurity C (RRT 1.18)

CAS: 1346604-16-7
Formula: C₃₁H₄₁N₅O₂S
MW: 547.8 g/mol

In stock

Reference Standard

Naratriptan Impurity C (Stage-II)

Naratriptan Impurity C (Stage-II)

Formula: C₁₉H₁₇N₃O₂S
MW: 351.42 g/mol

In stock

Reference Standard

Naratriptan Impurity E (Hydrochloride) chemical structure

Naratriptan Impurity E (Hydrochloride)

CAS: 1346600-26-7
Formula: C₂₀H₃₃ClN₄O₄S₂
MW: 493.1 g/mol

VQ-005335

Reference Standard

Naratriptan Impurity E (RRT 1.36) chemical structure

Naratriptan Impurity E (RRT 1.36)

CAS: 1346746-73-3
Formula: C₂₀H₃₂N₄O₄S₂
MW: 456.6 g/mol

In stock

Reference Standard

Naratriptan Impurity F chemical structure

Naratriptan Impurity F

CAS: 2144776-33-8
Formula: C₂₀H₂₇ClN₄O₄S₂
MW: 487 g/mol

VQ-005337

Reference Standard

Naratriptan Impurity F (Iodide)

Naratriptan Impurity F (Iodide)

Formula: C₂₀H₂₇N₄O₄S₂.I
MW: 578.49 g/mol

In stock

Reference Standard

Naratriptan Impurity F (RRT 1.44) chemical structure

Naratriptan Impurity F (RRT 1.44)

CAS: 2144776-32-7
Formula: C₂₀H₂₇N₄O₄S₂⁺
MW: 451.6 g/mol

VQ-005339

Reference Standard

Naratriptan Impurity F (RRT 1.44) (Stage-1)

Naratriptan Impurity F (RRT 1.44) (Stage-1)

Formula: C₁₈H₁₇BrN₂O₂
MW: 373.24 g/mol

VQ-005340

Reference Standard

Naratriptan Impurity-3 (Stage-1) chemical structure

Naratriptan Impurity-3 (Stage-1)

CAS: 17403-03-1
Formula: C₁₄H₁₆N₂
MW: 212.29 g/mol

In stock

Reference Standard

Naratriptan Related Compound D

Naratriptan Related Compound D

Formula: C₁₇H₂₀N₃O₂S.Cl
MW: 365.9 g/mol

VQ-005342

Reference Standard

Naratriptan Related Compound G (RRT 1.48) chemical structure

Naratriptan Related Compound G (RRT 1.48)

CAS: 2512213-55-5
Formula: C₂₀H₃₂N₄O₄S₂
MW: 456.6 g/mol

In stock

Reference Standard

Naratriptan Related Compound H (Hydrochloride) chemical structure

Naratriptan Related Compound H (Hydrochloride)

CAS: 2074613-77-5
Formula: C₁₆H₂₃ClN₂
MW: 278.82 g/mol

VQ-005344

Reference Standard

Naratriptan Related Compound H (RRT 1.90)

Naratriptan Related Compound H (RRT 1.90)

CAS: 2074613-76-4
Formula: C₁₆H₂₂N₂
MW: 242.36 g/mol

In stock

Reference Standard

Naringenin trimethyl ether chemical structure

Naringenin trimethyl ether

CAS: 38302-15-7
Formula: C₁₈H₁₈O₅
MW: 314.3 g/mol

VQ-045217

Reference Standard

Nateglinide Impurity 2 chemical structure

Nateglinide Impurity 2

CAS: 105746-38-1
Formula: C₁₉H₂₁NO₃
MW: 311.4 g/mol

VQ-032072

Reference Standard

Nbd-Nystatin chemical structure

CAS: 96475-98-8
Formula: C₆₀H₈₉N₅O₂₁
MW: 1216.4 g/mol

VQ-049278

Reference Standard

Neamine Disulfate chemical structure

Neamine Disulfate

CAS: 71155-47-0
Formula: C₁₂H₃₀N₄O₁₄S₂
MW: 518.5 g/mol

VQ-038582

Reference Standard

Nebivolol B Isomer chemical structure

Nebivolol B Isomer

CAS: 129050-26-6
Formula: C₁₁H₁₁FO₂
MW: 194.2 g/mol

VQ-032087

Reference Standard

Nebivolol D Isomer Hydrochloride chemical structure

Nebivolol D Isomer Hydrochloride

CAS: 213132-06-0
Formula: C₂₂H₂₆ClF₂NO₄
MW: 441.9 g/mol

VQ-032075

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