Description

Chromopyrazol CAS NO 1433-81-4 is a specialized heterocyclic organic compound belonging to the pyrazole class, recognized for its utility as a versatile chemical intermediate. Its significance lies in its structural framework, which serves as a critical building block for synthesizing more complex molecules in advanced research and industrial applications. This product is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical sectors seeking high-purity intermediates for product development.

Application

• Key pharmaceutical intermediate for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates.
• Building block in agrochemical research for developing novel pesticides, herbicides, and plant growth regulators.
• Precursor for dye and pigment chemistry, contributing to the creation of specialized colorants.
• Versatile scaffold in academic and industrial organic synthesis for constructing complex heterocyclic compounds.
• Intermediate in the development of coordination chemistry ligands and metal-organic frameworks (MOFs).
• Starting material for performance material research, including polymers and advanced functional materials.

Basic Information

Product Name	Chromopyrazol
CAS No.	1433-81-4
Molecular Formula	C7H5N3O2
Molecular Weight	163.14 g/mol
Synonyms	1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-; 5-Oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid; 3-Carboxy-5-pyrazolone; Chromotropic acid pyrazolone derivative; Pyrazolone-3-carboxylic acid; 4,5-Dihydro-5-oxo-1H-pyrazole-3-carboxylic acid
EINECS	215-863-6

Quality Control

Our Chromopyrazol is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and related substances, to meet exacting customer requirements. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, and we support compliance with relevant regulatory frameworks for industrial and research use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed to protect the product from moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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