sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate
Acid Yellow 25
CAS: 6359-85-9
Molecular Formula: C23H20N5NaO6S2
sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate - Names and Identifiers
sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate - Physico-chemical Properties
| Molecular Formula | C23H20N5NaO6S2 |
| Molar Mass | 549.55457 |
| Storage Condition | Room Temprature |
| Physical and Chemical Properties | The chemical properties are soluble in water. Slightly soluble in ethanol and acetone. The aqueous solution is yellow, and the color of sodium hydroxide does not change; it becomes turbid when cold. It is yellow in concentrated sulfuric acid, and fluorescent yellow precipitate is produced after dilution. |
| Use | Used for wool fabric dyeing and nylon fabric printing and dyeing, also used for leather and electrochemical aluminum coloring. Sometimes also used as a coating for paper. |
sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate - Risk and Safety
| WGK Germany | 3 |
sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate - Upstream Downstream Industry
| Raw Materials | 5-pyrrazolone |
sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate - Nature
| color index | 18835 |
| EPA chemical information | C. I. Acid Yellow 25 (6359-85-9) |
Last Update：2024-04-10 22:29:15
sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate - Production method
Using 4-amino -2-(anilinylsulfonyl) methylene and 3-methyl -1-p-sulfonic phenyl -5-pyrazolone as raw materials. First, diazotize the former, and then couple with the latter to obtain the product. The finished product is salted out, filtered, dried and crushed.
Last Update：2024-04-10 22:29:15
sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate - Introduction
Acid Yellow 25, also known as Acetic Yellow, is a yellow organic pigment. The following is a description of the nature, use, formulation and safety information of Acid Yellow 25:
1. nature:
-Appearance: Acid Yellow 25 is a yellow powder.
-Solubility: Acid Yellow 25 is insoluble in water, but soluble in organic solvents.
-Acid-Base Characteristics: Acid Yellow 25 is acidic.
2. use:
- Acid Yellow 25 is mainly used as a dye: it can be used to dye textiles, leather, paper and plastic products.
- Acid Yellow 25 is also used in paints and coatings to increase color stability and brightness.
3. Preparation method:
- Acid Yellow 25 can be prepared by the reaction of acetic anhydride and casein. The reaction requires the use of an acid catalyst.
4. Safety Information:
- Acid Yellow 25 has low toxicity, but the following safety precautions are still required:
-Avoid inhalation or contact with Acid Yellow 25 powder to avoid allergic reactions or irritation to the skin and eyes.
-Wear appropriate protective gloves, masks and goggles during use.
-Avoid exposing Acid Yellow 25 to high temperatures or fire sources to prevent its flammable reaction.
-Store Acid Yellow 25 in a dry, cool place during storage, away from fire and oxidizing agents.
Please note that the information provided above is for reference only. The use and handling of chemical substances should follow laboratory safety operations and relevant laws and regulations.
1. nature:
-Appearance: Acid Yellow 25 is a yellow powder.
-Solubility: Acid Yellow 25 is insoluble in water, but soluble in organic solvents.
-Acid-Base Characteristics: Acid Yellow 25 is acidic.
2. use:
- Acid Yellow 25 is mainly used as a dye: it can be used to dye textiles, leather, paper and plastic products.
- Acid Yellow 25 is also used in paints and coatings to increase color stability and brightness.
3. Preparation method:
- Acid Yellow 25 can be prepared by the reaction of acetic anhydride and casein. The reaction requires the use of an acid catalyst.
4. Safety Information:
- Acid Yellow 25 has low toxicity, but the following safety precautions are still required:
-Avoid inhalation or contact with Acid Yellow 25 powder to avoid allergic reactions or irritation to the skin and eyes.
-Wear appropriate protective gloves, masks and goggles during use.
-Avoid exposing Acid Yellow 25 to high temperatures or fire sources to prevent its flammable reaction.
-Store Acid Yellow 25 in a dry, cool place during storage, away from fire and oxidizing agents.
Please note that the information provided above is for reference only. The use and handling of chemical substances should follow laboratory safety operations and relevant laws and regulations.
Last Update：2024-04-09 15:16:21
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Product Name: Acid Yellow 25 Visit Supplier Webpage Request for quotation
CAS: 6359-85-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 6359-85-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History
sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate
4-AMINOPYRIDINE-3-METHANOL
4-AMINOPYRIDINE-3-METHANOL
Raw Materials for sodium 4-[5-hydroxy-3-methyl-4-[4-methyl-3-(phenylsulfamoyl)phenyl]azo-pyrazol-1-yl]benzenesulfonate