5,7-dimethyl-indole-3-dione
5,7-DIMETHYLISATIN
CAS: 39603-24-2
Molecular Formula: C10H9NO2
5,7-dimethyl-indole-3-dione - Names and Identifiers
5,7-dimethyl-indole-3-dione - Physico-chemical Properties
| Molecular Formula | C10H9NO2 |
| Molar Mass | 175.18 |
| Density | 1.250 |
| Melting Point | 245 °C |
| Boling Point | 306.47°C (rough estimate) |
| Water Solubility | Insoluble in water. |
| BRN | 143679 |
| pKa | 10.43±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.5060 (estimate) |
| MDL | MFCD00047219 |
| Physical and Chemical Properties | Appearance: red to red-brown powder Melting Point: 245 ℃ |
5,7-dimethyl-indole-3-dione - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. |
| RTECS | NL7930000 |
| HS Code | 29337900 |
| Hazard Class | IRRITANT |
5,7-dimethyl-indole-3-dione - Introduction
5,7-DIMETHYLISATIN, also known as 5,7-DIMETHYLISATIN, is a synthetic dye. The following is a description of its nature, use, preparation and safety information:
Nature:
5,7-DIMETHYLISATIN is a powdery substance with a red color. It has good solubility under acidic conditions, but poor solubility under alkaline conditions. The compound is relatively stable in the dry state, but gradually decomposes under light.
Use:
5,7-DIMETHYLISATIN is mainly used as an organic dye. It has good dyeing properties on silk, cotton fabric, paper and other materials. The compounds can also be used in the preparation of pigments, inks and plastics dyes, etc.
Preparation Method:
5,7-DIMETHYLISATIN can be synthesized by the reaction between p-thiourea and p-tolyl sodium. First, thiourea is reacted with dimethylcarbamide to form N,N'-dimethylurea. Next, this urea compound is treated with p-tolyl sodium to give 5,7-DIMETHYLISATIN by acid hydrolysis.
Safety Information:
Under normal conditions of use, 5,7-DIMETHYLISATIN has no reported serious toxicity. However, direct contact with the skin, eyes and respiratory tract should be avoided when handling this compound. In case of accidental contact, rinse immediately with water. In addition, because the compound is flammable, it should be stored properly and protected from fire and high temperature. When using or handling, should follow the relevant regulations and safe operation procedures.
Nature:
5,7-DIMETHYLISATIN is a powdery substance with a red color. It has good solubility under acidic conditions, but poor solubility under alkaline conditions. The compound is relatively stable in the dry state, but gradually decomposes under light.
Use:
5,7-DIMETHYLISATIN is mainly used as an organic dye. It has good dyeing properties on silk, cotton fabric, paper and other materials. The compounds can also be used in the preparation of pigments, inks and plastics dyes, etc.
Preparation Method:
5,7-DIMETHYLISATIN can be synthesized by the reaction between p-thiourea and p-tolyl sodium. First, thiourea is reacted with dimethylcarbamide to form N,N'-dimethylurea. Next, this urea compound is treated with p-tolyl sodium to give 5,7-DIMETHYLISATIN by acid hydrolysis.
Safety Information:
Under normal conditions of use, 5,7-DIMETHYLISATIN has no reported serious toxicity. However, direct contact with the skin, eyes and respiratory tract should be avoided when handling this compound. In case of accidental contact, rinse immediately with water. In addition, because the compound is flammable, it should be stored properly and protected from fire and high temperature. When using or handling, should follow the relevant regulations and safe operation procedures.
Last Update：2024-04-09 21:04:16
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Product Name: 5,7-Dimethylisatin Visit Supplier Webpage Request for quotationCAS: 39603-24-2
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Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
Product Name: 5,7-Dimethyl-1H-indole-2,3-dione 5,7-Dimethylisatin Request for quotation
CAS: 39603-24-2
Tel: 0086-13605431940
Email: xuli678323@126.com
Mobile: +86-13605431940
QQ: 56860987
Wechat: 13605431940
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CAS: 39603-24-2
Tel: 0086-13605431940
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Mobile: +86-13605431940
QQ: 56860987
Wechat: 13605431940
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