Description

5-Amino-2-(ethylthio)thiazolo[5,4-d]pyrimidine is a high-purity heterocyclic organic compound featuring a fused thiazolopyrimidine core structure. This specialized intermediate is critical for the synthesis of novel active pharmaceutical ingredients (APIs) and advanced agrochemicals, where its unique scaffold enables the development of targeted biological activity. It is primarily sought by research and development teams in the pharmaceutical, agrochemical, and fine chemical sectors for creating new therapeutic and crop protection agents.

Application

• Pharmaceutical Intermediate: A key building block in the research and synthesis of novel drug candidates, particularly for antiviral, anticancer, and anti-inflammatory therapies.
• Agrochemical Synthesis: Used in the development of next-generation fungicides, herbicides, and insecticides, leveraging its heterocyclic structure for enhanced efficacy.
• Biochemical Research: Serves as a valuable reagent and reference standard in biochemical assays and pharmacological studies.
• Material Science: Investigated as a precursor for organic electronic materials and specialty polymers due to its conjugated system.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for the production of client-specific target molecules.

Basic Information

Product Name	5-Amino-2-(ethylthio)thiazolo[5,4-d]pyrimidine
CAS No.	19857-03-5
Molecular Formula	C7H8N4S2
Molecular Weight	212.29 g/mol
Synonyms	5-Amino-2-(ethylthio)[1,3]thiazolo[5,4-d]pyrimidine; 2-(Ethylthio)-5-aminothiazolo[5,4-d]pyrimidine; Thiazolo[5,4-d]pyrimidine, 5-amino-2-(ethylthio)-; 5-Amino-2-ethylmercaptothiazolo[5,4-d]pyrimidine; ATETP; NSC 403079
EINECS	Contact for details

Quality Control

Every batch of 5-Amino-2-(ethylthio)thiazolo[5,4-d]pyrimidine is manufactured under strict quality management systems. Our products undergo rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee compliance with your research and production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which may affect stability and performance.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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