Description

3H-Pyrimido[4,5-B]Indol-4(9H)-One is a high-purity, fused heterocyclic compound with the CAS number 5719-50-6. This specialized chemical building block is critical for advanced research and development in medicinal chemistry and organic synthesis. It is primarily sought after by pharmaceutical R&D teams and fine chemical manufacturers for the development of novel active pharmaceutical ingredients (APIs) and other high-value intermediates.

Application

• Pharmaceutical Intermediate: Serves as a key scaffold in the research and synthesis of novel drug candidates, particularly in oncology and CNS therapeutic areas.
• Medicinal Chemistry Research: Used as a privileged structure for structure-activity relationship (SAR) studies and lead optimization in drug discovery programs.
• Organic Synthesis Building Block: Employed in the construction of complex polycyclic heterocyclic systems for advanced material science and chemical research.
• Biochemical Research: Potential use as a reference standard or probe in biochemical assays and enzymatic studies.
• Academic & Institutional R&D: Utilized in universities and research institutes for fundamental studies in heterocyclic chemistry and reaction methodology development.

Basic Information

Product Name	3H-Pyrimido[4,5-B]Indol-4(9H)-One
CAS No.	5719-50-6
Molecular Formula	C10H7N3O
Molecular Weight	185.18 g/mol
Synonyms	4(9H)-Pyrimido[4,5-b]indolone; 9H-Pyrimido[4,5-b]indol-4-ol; 4-Hydroxy-9H-pyrimido[4,5-b]indole; 4-Oxo-3,4,9,9a-tetrahydro-1H-pyrimido[4,5-b]indole; 3H-Pyrimido[4,5-b]indol-4(9H)-one; Pyrimido[4,5-b]indol-4(9H)-one; 5719-50-6
EINECS	Contact for details

Quality Control

Our 3H-Pyrimido[4,5-B]Indol-4(9H)-One is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity for research applications. All products undergo rigorous analytical testing, including HPLC, NMR, and mass spectrometry for identity confirmation and purity verification. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

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). Keep away from incompatible materials. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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