Description

Methylthiouracil CAS NO 56-04-2 is a sulfur-containing heterocyclic organic compound belonging to the thiouracil class. This compound is of significant interest in pharmaceutical research and development due to its specific biological activity. It is primarily utilized by research institutions and pharmaceutical companies engaged in the synthesis of novel therapeutic agents and biochemical studies.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the research and synthesis of potential thyroid-inhibiting drugs and other bioactive molecules.
• Biochemical Research: Used as a reference standard or inhibitor in studies related to thyroid peroxidase enzyme activity and thyroid hormone synthesis pathways.
• Organic Synthesis: Acts as a versatile precursor for the preparation of more complex thiouracil derivatives and heterocyclic compounds in medicinal chemistry.
• Academic & Industrial R&D: Employed in laboratories for method development, analytical testing, and investigating structure-activity relationships (SAR).

Basic Information

Product Name	Methylthiouracil
CAS No.	56-04-2
Molecular Formula	C5H6N2OS
Molecular Weight	142.18 g/mol
Synonyms	4-Methyl-2-thiouracil; 6-Methyl-2-thiouracil; 2-Thio-6-methyluracil; 2-Mercapto-6-methylpyrimidin-4(1H)-one; 6-Methyl-2-mercapto-4-pyrimidinol; MTU; Antithyroid; NSC 3885; BAS 00330937
EINECS	200-253-6

Quality Control

Our Methylthiouracil is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure it meets high-purity standards suitable for research and development applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	330 - 335 °C (dec.)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.