Description

4H-1,2,3-Triazolo[4,5-D]Pyrimidine (9Ci) is a fused heterocyclic compound that serves as a versatile and high-value synthetic building block in advanced organic chemistry. Its unique triazolopyrimidine scaffold is critical for constructing complex molecular architectures with targeted biological and electronic properties. This compound is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of nucleoside analogs, kinase inhibitors, and other small molecule drug candidates targeting various therapeutic areas.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, and plant growth regulators, leveraging its heterocyclic core for bioactivity.
• Material Science: Serves as a building block for organic semiconductors, ligands for metal-organic frameworks (MOFs), and components in advanced polymeric materials.
• Chemical Biology: Employed in the design and synthesis of molecular probes, fluorescent tags, and enzyme inhibitors for biochemical research.
• Academic & Contract Research: A valuable reagent for methodological development in organic synthesis and heterocyclic chemistry within university and CRO laboratories.

Basic Information

Product Name	4H-1,2,3-Triazolo[4,5-D]Pyrimidine (9Ci)
CAS No.	179268-21-4
Molecular Formula	C4H3N5
Molecular Weight	121.10 g/mol
Synonyms	4H-[1,2,3]Triazolo[4,5-d]pyrimidine; 1,2,3-Triazolo[4,5-d]pyrimidine; 4H-1,2,3-Triazolopyrimidine; [1,2,3]Triazolo[4,5-d]pyrimidine; Triazolopyrimidine; 4H-Triazolo[4,5-d]pyrimidine; 4H-1,2,3-Triazolo[4,5-d]pyrimidin; 4H-1,2,3-Triazolo(4,5-d)pyrimidine
EINECS	Contact for details

Quality Control

Our 4H-1,2,3-Triazolo[4,5-D]Pyrimidine (9Ci) is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and development. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key specifications such as assay purity and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider storing under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white powder
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.