Description

6-(Methylthio)Pyrimido[5,4-D]Pyrimidin-4(1H)-One is a high-purity heterocyclic organic compound serving as a critical advanced intermediate in pharmaceutical research and development. Its unique pyrimidopyrimidine scaffold makes it a valuable building block for synthesizing novel drug candidates targeting various therapeutic areas. This compound is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries.

Application

• Pharmaceutical Intermediate: A key synthon for the development of potential kinase inhibitors and other small-molecule therapeutics.
• Agrochemical Research: Used in the synthesis of novel active ingredients for crop protection products.
• Chemical Biology Probe: Serves as a core structure for developing tool compounds to study biological pathways.
• Fine Chemical Synthesis: Employed in multi-step organic synthesis for creating complex, high-value molecules.
• Academic & Contract Research: Essential for medicinal chemistry programs in universities and CROs (Contract Research Organizations).

Basic Information

Product Name	6-(Methylthio)Pyrimido[5,4-D]Pyrimidin-4(1H)-One
CAS No.	98550-19-7
Molecular Formula	C7H6N4OS
Molecular Weight	194.21 g/mol
Synonyms	6-(Methylthio)-1H-pyrimido[5,4-d]pyrimidin-4-one; 6-Methylsulfanyl-1H-pyrimido[5,4-d]pyrimidin-4-one; 4(1H)-Pyrimido[5,4-d]pyrimidinone, 6-(methylthio)-; 98550-19-7; 6-Methylmercaptopyrimido[5,4-d]pyrimidin-4(1H)-one
EINECS	Contact for details

Quality Control

Our 6-(Methylthio)Pyrimido[5,4-D]Pyrimidin-4(1H)-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via NMR and MS, to ensure it meets the stringent requirements for research and development use. A detailed Certificate of Analysis (COA) is provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.