Mesalazine Related Compounds & Impurities

Mesalazine (5-aminosalicylic acid) is a topical anti-inflammatory used for ulcerative colitis and Crohn's disease maintenance.

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 Mesalazine reference standards, pharmacopeial and non-pharmacopeial Mesalazine 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 Mesalazine-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

Mesalazine
N-Acetyl Mesalazine
N-Propionyl Mesalazine
Mesalazine EP Impurity M
Mesalazine EP Impurity A
Mesalazine EP Impurity B
Mesalazine EP Impurity C
Mesalazine EP Impurity D
Mesalazine EP Impurity E
Mesalazine EP Impurity F
Mesalazine EP Impurity H
Mesalazine EP Impurity L
Mesalazine EP Impurity N
N-Formyl Mesalazine Impurity
N-butyryl Mesalazine Impurity
Mesalazine EP Impurity K
Mesalazine EP Impurity G
Mesalazine Impurity 2
Mesalamine EP Impurity R
Mesalamine EP Impurity I
Mesalazine EP Impurity J Dihydrochloride
Mesalazine EP Impurity J
Mesalazine EP Impurity P
Mesalamine EP Impurity Q
Mesalazine Impurity 23
Mesalamine EP Impurity S
3-nitro-2-(nitrosooxy) benzoic acid
2-Hydroxy-5-Amino-N-(2-carboxy-4-aminophenyl)benzoic Acid
5-Amino-2-((5-amino-2-hydroxybenzoyl)amino)benzoic Acid
Sulfasalazine EP Impurity I
Mesalazine-3-Carboxylic Acid
2-aminobenzenesulfonic acid
3,6-Diamino Salicylic acid
Sulfanilazosalicyclic acid- E isomer
Mesalazine Impurity 7
5-(5-amino-2-hydroxybenzamido)-2-hydroxybenzoic acid
Mesalazine EP Impurity J Dihydrochloride
Mesalazine Impurity 15
Mesalazine Impurity 17
Mesalazine impurity 1
Mesalazine impurity 3
Mesalazine impurity 4
Mesalazine impurity 5
Mesalazine Impurity 9
Mesalazine Impurity 6
Mesalazine Impurity 10
N-Nitroso Mesalazine EP Impurity S
Mesalazine Impurity 8
Mesalazine Impurity 11

Metabolites

Mesalazine N-Beta-D-Glucoside

Isotope Labelled Compounds

Mesalazine -13C6 Hydrochloride
N-Acetyl Mesalazine - D3
Mesalazine - D3
Para Aminosalicylic Acid D3
N-Propionyl Mesalazine-D3