Description

1,2-Dihydro-1,5-Dimethyl-4-(Methylamino)-2-Phenyl-3H-Pyrazol-3-One CAS NO 519-98-2 is a heterocyclic organic compound belonging to the pyrazolone class. This specialized chemical is valued for its role as a key synthetic intermediate in the production of more complex active pharmaceutical ingredients (APIs) and fine chemicals. It is primarily sought by research and development laboratories, pharmaceutical manufacturers, and fine chemical synthesis companies.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of various therapeutic agents, particularly those with analgesic or anti-inflammatory properties.
• Fine Chemical Synthesis: Used in the preparation of complex organic molecules for research and specialty chemical applications.
• Agrochemical Research: Serves as a precursor in the development of novel crop protection agents and pesticides.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of certain azo dyes and colorants.
• Academic & Industrial R&D: Employed in chemical research for method development and exploring new reaction pathways.
• Analytical Reference Standard: Used as a high-purity standard for quality control and analytical method validation in regulated industries.

Basic Information

Product Name	1,2-Dihydro-1,5-Dimethyl-4-(Methylamino)-2-Phenyl-3H-Pyrazol-3-One
CAS No.	519-98-2
Molecular Formula	C12H15N3O
Molecular Weight	217.27 g/mol
Synonyms	4-(Methylamino)antipyrine; 4-Methylaminoantipyrine; N-Methyl-4-aminoantipyrine; Noramidopyrine; 1,5-Dimethyl-4-(methylamino)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one; MAP; 4-MAA; 4-(Methylamino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one
EINECS	208-280-4

Quality Control

Our 1,2-Dihydro-1,5-Dimethyl-4-(Methylamino)-2-Phenyl-3H-Pyrazol-3-One is manufactured under strict quality management systems. Each 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 critical quality attributes. Our production adheres to cGMP principles where applicable, ensuring reliability for sensitive pharmaceutical applications.

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). Due to its light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flames.

Specification

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

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