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ChemicalBook > Product Catalog >Pharmaceutical intermediates >disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate

disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate

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disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate Suppliers list
Company Name: Hubei Ruinuo Pharmaceutical Technology Co., Ltd  
Tel: 13165688766
Email: 3008058303@qq.com
Products Intro: Product Name:Tartrazine Impurity 6
CAS:1934-22-1
Purity:99% HPLC Package:10mg；25mg；50mg；100mg等多种规格
Company Name: Shaanxi DIDU pharmaceutical and Chemical Co., Ltd  
Tel: 15229059051
Email: 1027@dideu.com
Products Intro: Product Name:disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate
CAS:1934-22-1
Purity:98% Package:25KG
Company Name: Shanghai Zerui Biotechnology Co., Ltd.  
Tel: 021-54580889 18321124657
Email: 731997554@qq.com
Products Intro: Product Name:Tartrazine Impurity 5
CAS:1934-22-1
Purity:98% HPLC Package:10mg;25mg;50mg;100mg
Company Name: Henan Vcommend Consultrading Co., Ltd.  
Tel: 13393721940
Email: sales@vcommend.com
Products Intro: Product Name:Tartrazine Impurity 5
CAS:1934-22-1
Purity:95.0% Package:10mg;20mg;50mg
disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate Basic information
Product Name:disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate
Synonyms:disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate;4,5-Dihydro-5-oxo-4-(phenylazo)-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid disodium salt;C.I.19130;C.I.Acid Yellow 27;Tartrazine Impurity 5;C.I.Acid Yellow 27:C.I.19130
CAS:1934-22-1
MF:C16H10N4Na2O6S
MW:432.31834
EINECS:217-700-9
Product Categories:
Mol File:1934-22-1.mol
disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate Structure
disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate Chemical Properties
Safety Information
MSDS Information
disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate Usage And Synthesis
Preparationaniline diazo, and 5-Oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid coupling.
Properties and Applicationsyellow. Soluble in water, ethanol, acetone yellow. The strong sulfuric acid to tan, diluted to become red, and then a tan hairy precipitation. Its water solution and strong hydrochloric acid have brown yellow light precipitation; Add sodium hydroxide have precipitation. Used for wool, silk, vinegar fine fiber dyeing and leather and paper color, also can be used as organic pigments.
Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4 1 5 4 1 5 2-3
disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate Preparation Products And Raw materials
Raw materials1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone-->Aniline
Tag:disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate(1934-22-1) Related Product Information
Acid Yellow 257 ACID YELLOW 29 Acid Yellow 262 C.I. Acid Yellow 26 Quinoline Yellow Acid Yellow 250 disodium [2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato(2-)][2-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulphophenyl)-1H-pyrazol-4-yl]azo]benzoato(3-)]chromate(2-) Acid Yellow 261 Acid Yellow 260