Acetyl Salicylic acid Related Compounds & Impurities

Acetylsalicylic Acid (aspirin) is an irreversible COX inhibitor that blocks prostaglandin and thromboxane synthesis, used across analgesic, antipyretic, anti-inflammatory and low-dose antiplatelet cardiovascular prophylactic indications.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Acetyl Salicylic acid reference standards, pharmacopeial and non-pharmacopeial Acetyl Salicylic acid impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Acetyl Salicylic acid-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Acetylsalicylic Acid
4-Hydroxy benzoic acid
Acetylsalicylic Acid EP Impurity B
Acetylsalicylic Acid EP Impurity D
Acetylsalicylic Acid EP Impurity E
Acetylsalicylic Acid EP Impurity F
Tri-Salicylic Acid
m-Hydroxybenzoic Acid
p-Salicylic Acid
2-[[2-(Acetyloxy)benzoyl]oxy]benzoic Acid 2-Carboxyphenyl Ester
4-Acetoxybenzoic acid
Salicyl Sulfate Disodium Salt
Acetylsalicylic Acid Impurity 3
Acetylsalicyclic Acid Impurity 2
Acetylsalicyclic Acid Impurity 1
3-(aminocarbonyl)-4-hydroxybenzoic acid
Acetylsalicyclic Acid Impurity 4
Acetylsalicyclic Acid Impurity 5
Methyl 5-acetyl-2-hydroxybenzoate
2-Hydroxyisophthalic acid
NO-Aspirin
Acetylsalicyclic Acid Impurity 3
Acetylsalicyclic Acid Impurity 6

Isotope Labelled Compounds

Acetylsalicylic Acid-d4
Acetylsalicylic Acid D3 (Aspirin D3)