5-CHLORO-7-METHYLINDOLINE-2,3-DIONE
5-Chloro-7-methylisatin
CAS: 14389-06-1
Molecular Formula: C9H6ClNO2
5-CHLORO-7-METHYLINDOLINE-2,3-DIONE - Names and Identifiers
| Name | 5-Chloro-7-methylisatin |
| Synonyms | 135242 ISATINIC ANHYDRIDE 5-chloro-7-Methyisatin 5-CHLORO-7-METHYLISATIN 5-Chloro-7-methylisatin 5-CHLORO-7-METHYLINDOLINE-2,3-DIONE 5-chloro-7-methyl-1H-indole-2,3-dione 5-Chloro-7-methyl-1H-indole-2,3-dione 1H-Indole-2,3-dione, 5-chloro-7-methyl- |
| CAS | 14389-06-1 |
| EINECS | 000-000-0 |
| InChI | InChI=1/C9H6ClNO2/c1-4-2-5(10)3-6-7(4)11-9(13)8(6)12/h2-3H,1H3,(H,11,12,13) |
5-CHLORO-7-METHYLINDOLINE-2,3-DIONE - Physico-chemical Properties
| Molecular Formula | C9H6ClNO2 |
| Molar Mass | 195.6 |
| Density | 1.440±0.06 g/cm3(Predicted) |
| Melting Point | 283°C (dec.) |
| BRN | 153061 |
| pKa | 8.67±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.611 |
| MDL | MFCD00047218 |
| Physical and Chemical Properties | Appearance: yellow-red crystal Melting Point: 278-283 ℃ |
5-CHLORO-7-METHYLINDOLINE-2,3-DIONE - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R36 - Irritating to the eyes R52 - Harmful to aquatic organisms |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
5-CHLORO-7-METHYLINDOLINE-2,3-DIONE - Introduction
5-choro-7-methylisatin, also known as methylene blue, is an organic synthetic dye. Its molecular formula is C15H11ClN3O2 and its relative molecular mass is 305.72. The following describes its nature, use, preparation and safety information:
Nature:
5-choro-7-methyllistatin is a blue to purple crystalline powder. It is soluble in solvents such as water, alcohol and ether, and has good dyeing properties. Its solubility in water is better, the color is more bright when the pH value is low.
Use:
5-choro-7-methyllistatin is widely used in textile industry, leather industry and ink industry. It can be used to dye materials such as cotton yarn, silk, hemp fabric and paper, giving it bright colors. In addition, 5-choro-7-methyllistatin is also used in the preparation of pigments, dye inks and cosmetics.
Method:
The preparation of 5-chloro-7-methyllisatin is usually obtained by reacting diiodine disulfide with P-toluidine in an alkaline medium. The specific preparation process is that p-Toluidine is first dissolved in an alkaline medium, then diiodine disulfide is gradually added dropwise and cooled, and finally the product is obtained by filtration.
Safety Information:
5-chloro-7-methyllistatin is generally relatively safe under normal use conditions, but the following matters still need to be paid attention:
-avoid inhalation of dust or solution, should pay attention to personal protection, wear protective glasses, gloves and breathing masks.
-Do not contact the skin for a long time, avoid direct contact. In case of contact, rinse immediately with plenty of water.
-If swallowed or accidentally entered the eye, seek medical help immediately.
-Keep away from flammable materials, oxidizing agents and strong acids during storage and handling.
Summary:
5-choro-7-methyllistatin is an important organic synthetic dye with good dyeing properties. It is widely used in textile, leather and ink industries, and can be used in pigments, dye inks and cosmetics. During use, pay attention to personal protection, avoid inhalation or excessive contact, avoid swallowing and contact with eyes.
Nature:
5-choro-7-methyllistatin is a blue to purple crystalline powder. It is soluble in solvents such as water, alcohol and ether, and has good dyeing properties. Its solubility in water is better, the color is more bright when the pH value is low.
Use:
5-choro-7-methyllistatin is widely used in textile industry, leather industry and ink industry. It can be used to dye materials such as cotton yarn, silk, hemp fabric and paper, giving it bright colors. In addition, 5-choro-7-methyllistatin is also used in the preparation of pigments, dye inks and cosmetics.
Method:
The preparation of 5-chloro-7-methyllisatin is usually obtained by reacting diiodine disulfide with P-toluidine in an alkaline medium. The specific preparation process is that p-Toluidine is first dissolved in an alkaline medium, then diiodine disulfide is gradually added dropwise and cooled, and finally the product is obtained by filtration.
Safety Information:
5-chloro-7-methyllistatin is generally relatively safe under normal use conditions, but the following matters still need to be paid attention:
-avoid inhalation of dust or solution, should pay attention to personal protection, wear protective glasses, gloves and breathing masks.
-Do not contact the skin for a long time, avoid direct contact. In case of contact, rinse immediately with plenty of water.
-If swallowed or accidentally entered the eye, seek medical help immediately.
-Keep away from flammable materials, oxidizing agents and strong acids during storage and handling.
Summary:
5-choro-7-methyllistatin is an important organic synthetic dye with good dyeing properties. It is widely used in textile, leather and ink industries, and can be used in pigments, dye inks and cosmetics. During use, pay attention to personal protection, avoid inhalation or excessive contact, avoid swallowing and contact with eyes.
Last Update：2024-04-09 21:32:37
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CAS: 14389-06-1
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CAS: 14389-06-1
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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