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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

Sacubitril Impurity A chemical structure

Sacubitril Impurity A

CAS: 1039307-95-3
Formula: C₁₈H₂₁NO₂
MW: 283.4 g/mol

In stock

Reference Standard

Sacubitril Isopropyl ester chemical structure

Sacubitril Isopropyl ester

CAS: 2459446-53-6
Formula: C₂₇H₃₅NO₅
MW: 453.6 g/mol

VQ-027964

Reference Standard

Sacubitril Lactam (3R,5R Isomer) chemical structure

Sacubitril Lactam (3R,5R Isomer)

CAS: 2101222-42-6
Formula: C₁₈H₁₉NO
MW: 265.3 g/mol

In stock

Reference Standard

Sacubitril Maleic Acid (E-Isomer) chemical structure

Sacubitril Maleic Acid (E-Isomer)

CAS: 2984580-03-0
Formula: C₂₄H₂₇NO₅
MW: 409.5 g/mol

In stock

Reference Standard

Sacubitril N-Acetyl Impurity chemical structure

Sacubitril N-Acetyl Impurity

CAS: 2806120-13-6
Formula: C₂₂H₂₇NO₃
MW: 353.5 g/mol

In stock

Reference Standard

Sacubitril Pyrrolidinedione Impurity chemical structure

Sacubitril Pyrrolidinedione Impurity

CAS: 2413471-23-3
Formula: C₁₉H₁₈ClNO₂
MW: 327.8 g/mol

VQ-042071

Reference Standard

Sacubitril Pyrrolidinone Impurity chemical structure

Sacubitril Pyrrolidinone Impurity

CAS: 1038925-22-2
Formula: C₁₈H₁₉NO
MW: 265.3 g/mol

VQ-027961

Reference Standard

Safinamide Acid chemical structure

Safinamide Acid

CAS: 1160513-60-9
Formula: C₁₇H₁₈FNO₃
MW: 303.33 g/mol

VQ-021335

Reference Standard

Safinamide Methanesulfonate chemical structure

Safinamide Methanesulfonate

CAS: 202825-46-5
Formula: C₁₈H₂₃FN₂O₅S
MW: 398.5 g/mol

VQ-027967

Reference Standard

Salbutamol 4-O-Sulfate chemical structure

Salbutamol 4-O-Sulfate

CAS: 63908-03-2
Formula: C₁₃H₂₁NO₆S
MW: 319.38 g/mol

VQ-042075

Reference Standard

Salbutamol Diethyl Ether chemical structure

Salbutamol Diethyl Ether

CAS: 1221726-71-1
Formula: C₁₇H₂₉NO₃
MW: 295.4 g/mol

VQ-043790

Reference Standard

Salbutamol Glyoxal Impurity chemical structure

Salbutamol Glyoxal Impurity

CAS: 72189-44-7
Formula: C₉H₁₀O₅
MW: 198.17 g/mol

VQ-033744

Reference Standard

Salbutamon Hydrochloride chemical structure

Salbutamon Hydrochloride

CAS: 41489-89-8
Formula: C₁₃H₂₀ClNO₃
MW: 273.75 g/mol

VQ-033740

Reference Standard

Salcaprozate Impurity G chemical structure

Salcaprozate Impurity G

CAS: 3069315-48-3
Formula: C₂₃H₃₅NO₆
MW: 421.5 g/mol

VQ-044393

Reference Standard

Salicyl Sulfate Disodium Salt chemical structure

Salicyl Sulfate Disodium Salt

CAS: 56343-01-2
Formula: C₇H₄Na₂O₆S
MW: 262.15 g/mol

VQ-035589

Reference Standard

Salmeterol Impurity 22 chemical structure

Salmeterol Impurity 22

CAS: 63295-94-3
Formula: C₁₇H₁₆O₅
MW: 300.3 g/mol

In stock

Reference Standard

Salmeterol Impurity 23

Salmeterol Impurity 23

CAS: 1292299-06-9
Formula: C₂₃H₂₀O₄
MW: 360.4 g/mol

In stock

Reference Standard

Samidorphan L-Malate chemical structure

Samidorphan L-Malate

CAS: 1204592-75-5
Formula: C₂₅H₃₂N₂O₉
MW: 504.5 g/mol

VQ-033757

Reference Standard

Sancycline 7-Ethylmethylamino Impurity chemical structure

Sancycline 7-Ethylmethylamino Impurity

CAS: 32598-29-1
Formula: C₂₄H₂₉N₃O₇
MW: 471.5 g/mol

VQ-031923

Reference Standard

Sapropterin Impurity 7 chemical structure

Sapropterin Impurity 7

CAS: 6228-40-6
Formula: C₇H₈N₂
MW: 120.15 g/mol

VQ-033759

Reference Standard

Sapropterin Impurity A chemical structure

Sapropterin Impurity A

CAS: 5752-25-0
Formula: C₆H₁₀ClN₅O
MW: 203.63 g/mol

VQ-027982

Reference Standard

Sarafloxacin chemical structure

CAS: 98105-99-8
Formula: C₂₀H₁₇F₂N₃O₃
MW: 385.4 g/mol

VQ-033764

Reference Standard

Sarpogrelate Related Compound II chemical structure

Sarpogrelate Related Compound II

CAS: 1659311-44-0
Formula: C₂₄H₃₁NO₇
MW: 445.5 g/mol

VQ-042104

Reference Standard

Sartanbiphenrl chemical structure

CAS: 153959-55-8
Formula: C₁₄H₁₁N
MW: 193.24 g/mol

VQ-044927

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