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
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
- Mol File:
- 1934-22-1.mol
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disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate Usage And Synthesis
Preparation
aniline diazo, and 5-Oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid coupling.
Properties and Applications
yellow. 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 Supplier
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd
- Tel
- 15229059051
- 1027@dideu.com
Shanghai Zerui Biotechnology Co., Ltd.
- Tel
- 021-54580889 18321124657
- 731997554@qq.com
Henan Vcommend Consultrading Co., Ltd.
- Tel
- 13393721940
- sales@vcommend.com
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disodium 4,5-dihydro-5-oxo-4-(phenylazo)-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate (1934-22-1)Related Product Information
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