Description

Pyrimido[4,5-D]Pyridazin-4(3H)-One (8Ci) is a high-purity, fused heterocyclic organic compound of significant interest in advanced chemical synthesis. This specialized building block is valued for its unique molecular architecture, which serves as a critical scaffold in the development of novel active ingredients. It is primarily sought after by research institutions and industrial R&D departments engaged in pharmaceutical discovery, agrochemical innovation, and materials science. The compound, with CAS No. 21579-42-0, is supplied to meet the stringent requirements of modern process chemistry and high-throughput screening.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates targeting various therapeutic areas.
• Agrochemical Research: Used as a core structure for developing new active ingredients in crop protection and pest management.
• Chemical Biology Probe: Serves as a scaffold for creating molecular tools to study biological pathways and protein interactions.
• Material Science: Investigated for its potential in creating novel organic electronic materials or specialty polymers.
• Academic & Contract Research: Essential for fundamental organic chemistry research and custom synthesis projects in CROs (Contract Research Organizations).

Basic Information

Product Name	Pyrimido[4,5-D]Pyridazin-4(3H)-One (8Ci)
CAS No.	21579-42-0
Molecular Formula	C7H4N4O
Molecular Weight	160.14 g/mol
Synonyms	4(3H)-Pyrimido[4,5-d]pyridazinone; 3H-Pyrimido[4,5-d]pyridazin-4-one; Pyrimido[4,5-d]pyridazin-4(3H)-one; 4-Hydroxypyrimido[4,5-d]pyridazine; 4-Oxo-3,4-dihydropyrimido[4,5-d]pyridazine
EINECS	Contact for details

Quality Control

Our Pyrimido[4,5-D]Pyridazin-4(3H)-One (8Ci) is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and spectroscopic methods for structural confirmation, to ensure it meets the high standards required for research and development. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay purity and impurity profiles. We support custom synthesis and can tailor specifications to meet specific project requirements.

Storage

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

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.