Description

2,4-Dichloro-7,8-dihydro-5H-pyrano[4,3-d]pyrimidine is a high-purity, heterocyclic organic compound featuring a fused pyranopyrimidine core structure. This molecule serves as a critical advanced pharmaceutical intermediate (API) and a versatile scaffold in medicinal chemistry research. It is primarily sought after by R&D and production teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients. Its defined structure and reactivity make it essential for constructing complex molecules targeting various therapeutic and crop protection applications.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of potential drug candidates, particularly in kinase inhibitor and antiviral research.
• Agrochemical Synthesis: Used as a precursor for developing new herbicides, fungicides, and plant growth regulators.
• Medicinal Chemistry Research: Serves as a core scaffold for structure-activity relationship (SAR) studies and library synthesis in drug discovery.
• Chemical Biology Probes: Utilized in the development of molecular probes to study biological pathways and enzyme functions.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects.
• Academic & Institutional Research: Used in university and institutional labs for fundamental organic chemistry and applied life science research.

Basic Information

Product Name	2,4-Dichloro-7,8-dihydro-5H-pyrano[4,3-d]pyrimidine
CAS No.	944902-88-9
Molecular Formula	C7H6Cl2N2O
Molecular Weight	205.04 g/mol
Synonyms	2,4-Dichloro-5H,7H,8H-pyrano[4,3-d]pyrimidine; 5H-Pyrano[4,3-d]pyrimidine, 2,4-dichloro-7,8-dihydro-; 2,4-Dichloro-7,8-dihydro-5H-pyrano[4,3-d]pyrimidine; Pyrano[4,3-d]pyrimidine, 2,4-dichloro-7,8-dihydro-5H-; 944902-88-9 (CAS); 2,4-Dichloro-dihydropyranopyrimidine
EINECS	Contact for details

Quality Control

Our 2,4-Dichloro-7,8-dihydro-5H-pyrano[4,3-d]pyrimidine is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality commitment ensures the material meets the stringent requirements for pharmaceutical R&D and other critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC/IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Purity (HPLC, Area %)	≥ 99.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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