SUNCHEM

1-Phenyl-3-Methyl-5-Pyrazalone

89-25-8

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CAS No.89-25-8

FormulaC10H10N2O

SynonymsTIMTEC-BB SBB003801;PMP;MONOPYRAZOLONE;2,4-dihydro-5-methyl-2-phenyl-3h-pyrazol-3-on;2-Pyrazolin-5-one, 3-methyl-1-phenyl-;3H-Pyrazol-3-one,2,4-dihydro-5-methyl-;3-methyl-1-phenyl-2-pyrazolin-5-on;3-methyl-1-phenyl-5-pyrazolon

Product overview & key benefits

1-Phenyl-3-methyl-5-pyrazolone is a cyclic compound widely used as a coupling agent in the production of yellow and orange azo dyes for textiles and printing applications. It also serves as an important intermediate in photographic color film couplers and pharmaceutical synthesis. SUNCHEM supports international buyers with 1-Phenyl-3-Methyl-5-Pyrazalone sourcing from qualified Chinese producers, with quality documentation, export coordination, and logistics support.

Existing Supplier Overview

We have over 20 years of experience in the field of APIs and we offer all services from R&D to production to export. We understand very well the differences and advantages between each manufacturer in China and are also very familiar with the registration requirements of our target markets. We have our own manufacturing facility and we also work with over 100 API factories. We have our own API registration team and can provide technical and documentary support to the factories.

Technical specifications

Property	Reference value
Melting point	126-128 °C(lit.)
Boiling point	287 °C265 mm Hg(lit.)
Density	1,12 g/cm3
Refractive index	1.6300 (estimate)
Fp	191°C/17mm
Storage temp.	2-8°C
Solubility	3.30g/l
Pka	2.73±0.50(Predicted)

Existing product reference data. Predicted values are identified in the table; Confirm the specification of the offered grade before ordering.

Applications

Yellow and orange azo dye synthesis coupling agent
Photographic color coupler for film processing
Food and cosmetic colorant intermediate
Pharmaceutical synthesis intermediate
Metal chelating and analytical reagent
Textile printing dye production
Organic synthesis building block

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