Product details
Bulk supply and Contract manufacturing of Fine Chemicals,Pharmaceutical Intermediates,APIs from kilos to tons


  • CAS:


  • Synonym:

    5-Oxo-1-(4-sulfophenyl)-2,5-dihydro-1H-pyrazole-3-carboxylic acid
    4-(4-sulfo-1-phenylazo)-1-(4-sulfophenyl)-5-hydroxy-pyrazolone-3-carboxylic acid
    5-oxo-1-(4-sulphophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid


Chemical Name: 1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone
Synonyms:3-Carboxy-1-(4-sulfophenyl)-2-pyrazolin-5-one;5-Oxo-1-(4-sulfophenyl)-2,5-dihydro-1H-pyrazole-3-carboxylic acid;4-(4-sulfo-1-phenylazo)-1-(4-sulfophenyl)-5-hydroxy-pyrazolone-3-carboxylic acid;5-oxo-1-(4-sulphophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid
Molecular Formula:C10H8N2O6S
Molecular Weight: 284.24500
Physical and Chemical Properties:
Density:1.75 g/cm3
Boiling point:/
Melting point:260-270ºC (Decomposes)
Flash point:/
Index of Refraction:1.695
Appearance:Light yellow crystalline powder
Packing: 25kg drum
Storage:Storage conditions:-20°C.This product should be sealed in a cool dry place.
Application:It is mainly used as a coupling component for organic synthetic dyes and pigment varieties.

Synthesis of reference compounds, intermediates, drug candidates, impurities and metabolites for customers with a range of milligrams to kilograms (including GMP quality).We use our research in assisting customers to solve their most challenging problems and unique opportunities.It involves demanding processes including high pressure hydrogenation, oxygen free water environment, ultra low temperature environment and highly corrosive environmentWe not only effectively utilize the strong technical strength of our R&D department, but also establish long-term cooperative relationships with many well-known domestic enterprises and research institutions, and form a leading R&D and production team in China.Our company is able to achieve rapid response in the product development, pilot-amplification process, and quickly transform technology into production.

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Laboratory in Ningbo
Our company's R&D company, Ningbo Gino Chemical Co., Ltd. was established in December 2011. we have several fume hoods and kilogram laboratory, and have purchased 20L, 50L reactors and as a preliminary pilot manufacturing of the products. At the same time, We mobilized external resources to establish a pilot facility in Henan Zhumadian and Anhui Anqing, and cooperating with Shandong Zibo and Jiangsu Changzhou factories as a large production facility for our products.

Factory in Shanxi Province
At the end of 2017, We invested workshop in Xinjiang County Longzhou Chemical Co., Ltd., Xinjiang County Coal Mine Park, Yuncheng, Shanxi. The first phase of the reactors were 30* 2000L~5000L, The contract output value is 50 million annually, factory has passed the audit from public listed company domestic and abroad.

Factory in Shandong Province
The production base of liquid rectification chemical products located in Liaocheng, Shandong Province is the main outsourcing production base of our company. The products are sold to leading enterprises and listed companies in the carcass industry for many years. The production, quality and service are stable, delivery is timely, and some individual products are covering 90% of the market.

Factory in Henan Province
In year 2020, We invested workshop in Henan province, the workshop consists of 50*2000L~5000L reactors, The types of reactions that can be manufacturer there are: bromination, cyanidation, and conventional reactions.

Disclaimer: Certain products are for research use only. Not for diagnostic or therapeutic use. Not for human use. INNOPHARMCHEM does not sell to individuals. INNOPHARMCHEM does not warrant that the use or sale of the products delivered under will not infringe the claims of any China or other patents covering the product itself or the use thereof in combination with other products or the operation of any process.

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