Description

Pyrazinecarboxamide, 4,5-Dihydro-5-Oxo is a heterocyclic organic compound featuring a fused pyrazine and lactam structure, serving as a versatile synthetic intermediate. This high-purity building block is critical for researchers and manufacturers requiring precise molecular scaffolds for advanced chemical synthesis. It is primarily utilized in the development of active pharmaceutical ingredients (APIs), agrochemicals, and specialized fine chemicals, where its unique reactivity profile enables the construction of complex nitrogen-containing molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and metabolic diseases.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides and fungicides, leveraging its heterocyclic core for bioactivity.
• Fine Chemical Manufacturing: Employed as a specialized building block for creating complex dyes, pigments, and photographic chemicals.
• Material Science Research: Investigated for its potential in constructing organic semiconductors and ligands for catalytic systems.
• Academic & R&D: Serves as a standard reagent in organic chemistry laboratories for method development and heterocyclic chemistry studies.

Basic Information

Product Name	Pyrazinecarboxamide, 4,5-Dihydro-5-Oxo
CAS No.	13924-96-4
Molecular Formula	C5H5N3O2
Molecular Weight	139.11 g/mol
Synonyms	5-Oxo-4,5-dihydropyrazine-2-carboxamide; 2-Pyrazinecarboxamide, 4,5-dihydro-5-oxo-; 5-Oxo-4,5-dihydro-2-pyrazinecarboxamide; 4,5-Dihydro-5-oxopyrazine-2-carboxamide; DHPO; 2-Carbamoyl-3-hydroxypyrazine; 3-Hydroxypyrazine-2-carboxamide
EINECS	Contact for details

Quality Control

Our Pyrazinecarboxamide, 4,5-Dihydro-5-Oxo is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We support compliance with cGMP, ISO, and REACH regulations for global supply.

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 such as strong oxidizing agents. The product may be hygroscopic; ensure containers are sealed after use to minimize moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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