Iodothiouracil CAS 5984-97-4

Purity 97%+In StockPharmaceutical Standards
CAS No.5984-97-4
Molecular FormulaC4H3IN2OS
Molecular Weight254.05 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Iodothiouracil CAS 5984-97-4 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Iodothiouracil (CAS 5984-97-4), molecular formula C4H3IN2OS and molecular weight 254.05 g/mol, is a CATO reference standard with documented purity and traceability.

Iodothiouracil (C4H3IN2OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, iodine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC4H3IN2OS
Molecular Weight254.05 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1958
Halogen ContentI-containing
Nitrogen Atoms2
Sulfur Atoms1

Recommended Standards

Why CATO?