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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

N-Methyl Paroxetine chemical structure

N-Methyl Paroxetine

CAS: 110429-36-2
Formula: C₂₀H₂₂FNO₃
MW: 343.4 g/mol

VQ-023469

Reference Standard

N-Methyl Pemetrexed Glutamide Impurity (Trisodium Salt)

N-Methyl Pemetrexed Glutamide Impurity (Trisodium Salt)

Formula: C₂₆H₂₇N₆O_9.3Na
MW: 636.5 g/mol

VQ-005312

Reference Standard

N-Methyl Picolinamide chemical structure

N-Methyl Picolinamide

CAS: 6144-78-1
Formula: C₇H₈N₂O
MW: 136.15 g/mol

VQ-042234

Reference Standard

N-Methyl Pioglitazone chemical structure

N-Methyl Pioglitazone

CAS: 1333110-79-4
Formula: C₂₀H₂₂N₂O₃S
MW: 370.5 g/mol

VQ-033197

Reference Standard

N-Methyl Protriptyline chemical structure

N-Methyl Protriptyline

CAS: 521-80-2
Formula: C₂₀H₂₃N
MW: 277.4 g/mol

VQ-044711

Reference Standard

N-Methyl Tamsulosin chemical structure

N-Methyl Tamsulosin

CAS: 2749357-76-2
Formula: C₂₁H₃₀N₂O₅S
MW: 422.5 g/mol

VQ-028203

Reference Standard

N-Methyl Viloxazine chemical structure

N-Methyl Viloxazine

CAS: 48173-47-3
Formula: C₁₄H₂₁NO₃
MW: 251.32 g/mol

VQ-034630

Reference Standard

N-Methyl Vortioxetine

N-Methyl Vortioxetine

CAS: 1293489-87-8
Formula: C₁₉H₂₄N₂S
MW: 312.47 g/mol

VQ-028764

Reference Standard

N-Methyl Ziprasidone chemical structure

N-Methyl Ziprasidone

CAS: 774595-88-9
Formula: C₂₂H₂₃ClN₄OS
MW: 427 g/mol

VQ-034746

Reference Standard

N-Methyl-1-(5-phenyl-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)methanamine chemical structure

N-Methyl-1-(5-phenyl-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)methanamine

CAS: 881732-90-7
Formula: C₁₇H₁₇N₃O₂S
MW: 327.4 g/mol

VQ-024027

Reference Standard

N-Methyl-2-((3-(2-(pyridin-2-yl)ethyl)-1H-indazol-6-yl)thio)benzamide chemical structure

N-Methyl-2-((3-(2-(pyridin-2-yl)ethyl)-1H-indazol-6-yl)thio)benzamide

CAS: 1443118-73-7
Formula: C₂₂H₂₀N₄OS
MW: 388.5 g/mol

VQ-024458

Reference Standard

N-Methyl-2-(1-methylethyl)-4-thiazolemethanamine dihydrochloride chemical structure

N-Methyl-2-(1-methylethyl)-4-thiazolemethanamine dihydrochloride

CAS: 1185167-55-8
Formula: C₈H₁₆Cl₂N₂S
MW: 243.2 g/mol

VQ-029236

Reference Standard

N-Methyl-2-(3-(piperidin-4-yl)-1H-indol-5-yl)ethane-1-sulfonamide chemical structure

N-Methyl-2-(3-(piperidin-4-yl)-1H-indol-5-yl)ethane-1-sulfonamide

CAS: 121679-16-1
Formula: C₁₆H₂₃N₃O₂S
MW: 321.4 g/mol

VQ-038562

Reference Standard

N-Methyl-2-(4-methylpiperazin-1-yl)-N-(4-nitrophenyl)acetamide chemical structure

N-Methyl-2-(4-methylpiperazin-1-yl)-N-(4-nitrophenyl)acetamide

CAS: 1139453-98-7
Formula: C₁₄H₂₀N₄O₃
MW: 292.33 g/mol

VQ-026921

Reference Standard

N-Methyl-2-(pyridin-2-yl)prop-2-en-1-amine

N-Methyl-2-(pyridin-2-yl)prop-2-en-1-amine

CAS: 1894608-21-9
Formula: C₉H₁₂N₂
MW: 148.2 g/mol

VQ-028964

Reference Standard

N-Methyl-2-[[3-[(1E)-2-(1-oxido-2-pyridinyl)ethenyl]-1H-indazol-6-yl]sulfinyl]-benzamide chemical structure

N-Methyl-2-[[3-[(1E)-2-(1-oxido-2-pyridinyl)ethenyl]-1H-indazol-6-yl]sulfinyl]-benzamide

CAS: 1348044-24-5
Formula: C₂₂H₁₈N₄O₃S
MW: 418.5 g/mol

VQ-029312

Reference Standard

N-Methyl-2-[3-(1-methylpiperidin-4-yl)-1H-indol-5-yl]ethene-1-sulfonamide chemical structure

N-Methyl-2-[3-(1-methylpiperidin-4-yl)-1H-indol-5-yl]ethene-1-sulfonamide

CAS: 121679-24-1
Formula: C₁₇H₂₃N₃O₂S
MW: 333.5 g/mol

VQ-043615

Reference Standard

N-Methyl-2-amino-4-nitroaniline chemical structure

N-Methyl-2-amino-4-nitroaniline

CAS: 41939-61-1
Formula: C₇H₉N₃O₂
MW: 167.17 g/mol

VQ-047546

Reference Standard

N-Methyl-3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propan-1-amine oxalate chemical structure

N-Methyl-3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propan-1-amine oxalate

CAS: 116817-14-2
Formula: C₂₀H₂₁NO₅S
MW: 387.5 g/mol

VQ-043953

Reference Standard

N-Methyl-3-phenyl-3-(2-(trifluoromethyl)phenoxy)propan-1-amine Hydrochloride chemical structure

N-Methyl-3-phenyl-3-(2-(trifluoromethyl)phenoxy)propan-1-amine Hydrochloride

CAS: 2243504-22-3
Formula: C₁₇H₁₉ClF₃NO
MW: 345.8 g/mol

VQ-030810

Reference Standard

N-Methyl-3-phenyl-3-(m-tolyloxy)propan-1-amine Hydrochloride chemical structure

N-Methyl-3-phenyl-3-(m-tolyloxy)propan-1-amine Hydrochloride

CAS: 873310-28-2
Formula: C₁₇H₂₂ClNO
MW: 291.8 g/mol

VQ-029248

Reference Standard

N-Methyl-3-phenyl-3-(p-tolyloxy)propan-1-amine Hydrochloride chemical structure

N-Methyl-3-phenyl-3-(p-tolyloxy)propan-1-amine Hydrochloride

CAS: 873310-31-7
Formula: C₁₇H₂₂ClNO
MW: 291.8 g/mol

VQ-021652

Reference Standard

N-Methyl-3-pyrrolidinol chemical structure

N-Methyl-3-pyrrolidinol

CAS: 13220-33-2
Formula: C₅H₁₁NO
MW: 101.15 g/mol

VQ-032450

Reference Standard

N-Methyl-3,3-diphenylpropanamide chemical structure

N-Methyl-3,3-diphenylpropanamide

CAS: 348607-76-1
Formula: C₁₆H₁₇NO
MW: 239.31 g/mol

VQ-031492

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