Search products

Search by product name, CAT, CAS, molecular formula or chemical name.

Trusted Partner for Reference Standards and Beyond
Products About us Facility Quality system OUR DIVISIONS SimSon Chemtech Speciality & fine chemicals SimSon Chemie Research chemicals supply SimSon Lifescience Services CRO, CDMO & analytical testing Contact us Careers

Gimeracil Related Compounds & Impurities

Gimeracil is a dihydropyrimidine dehydrogenase inhibitor that prevents 5-FU degradation, used as a component of the S-1 oral chemotherapy combination.

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 Gimeracil reference standards, pharmacopeial and non-pharmacopeial Gimeracil 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 Gimeracil-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.

Impurity Standards

5,6-Dihydro-5-fluorouracil

CAT. No.G500002 CAS No.696-06-0 Mol. F.C4H5FN2O2 Mol. W.132.09 g/mol Stock Status Custom Synthesis
COA MSDS

Gimeracil Impurity 6

CAT. No.G500001 CAS No.623-78-9 Mol. F.C6H6ClNO2 Mol. W.159.57 g/mol Stock Status Custom Synthesis
COA MSDS

Isotope Labelled Compounds

Cyanuric Acid-13C3

CAT. No.G500003 CAS No.201996-37-4 Mol. F.13C3H3N3O3 Mol. W.132.05 g/mol Stock Status Custom Synthesis
COA MSDS

Working Standards

Gimeracil

CAT. No.G500000 CAS No.103766-25-2 Mol. F.C5H4ClNO2 Mol. W.145.54 g/mol Stock Status Instock
COA MSDS

Product structure

Sample structure

Catalogue no.: — CAS no.: — Formula: — Mol. weight: —

Illustrative sample structure
SimSon — Science Standards Solutions
D-U-N-S Registered — Dun & Bradstreet D-U-N-S® REGISTERED Verified by Dun & Bradstreet
OFFICES & LABORATORIES
REGISTERED OFFICE · MUMBAI B-307, Sarita Building, Prabhat Industrial Estate, Near Dahisar Toll Naka, Dahisar (East), Mumbai- 400068, Maharashtra, India
CORPORATE OFFICE · MUMBAI Unit 1001-1006, The Platina, Tanvi Complex, S. V. Road, Dahisar East, Mumbai 400068, India
LABORATORY · HYDERABAD Shed 6A, TYPE III, TSIIC, Prashanthi Nagar, Kukatpally, Hyderabad 500072, India
REGIONAL OFFICE · AHMEDABAD Survey Number 375 Paiki 1, Plot Number 11, Shivam 5, Near Sumip Composite, Panchratna Estate, Village Changodar, Taluka Sanand, District Ahmedabad, Gujarat-382213
TALK TO THE RIGHT DESK
© 2026 SimSon Pharma Limited · All rights reserved