2,5-DIMETHOXYTHIOPHENOL
2,5-Dimethoxythiophenol
CAS: 1483-27-8
Molecular Formula: C8H10O2S
2,5-DIMETHOXYTHIOPHENOL - Names and Identifiers
| Name | 2,5-Dimethoxythiophenol |
| Synonyms | 2,5-DIMETHOXYTHIOPHE 2,5-DIMETHOXYTHIOPHENE 2C5-DIMETHOXYTHIOPHENOL 2,5-DIMETHOXYTHIOPHENOL 2,5-Dimethoxythiophenol 2,5-Dimethoxy thiophenyl 2,5-DIMETHOXYBENZENETHIOL 2,5-Dimethoxybenzenethiol 2,5-dimethoxybenzene-1-thiol 2,5-Dimethoxybenzenethiol, 2,5-Dimethoxyphenyl mercaptan |
| CAS | 1483-27-8 |
| EINECS | 626-652-1 |
| InChI | InChI=1/C8H10O2S/c1-9-6-3-4-7(10-2)8(11)5-6/h3-5,11H,1-2H3 |
2,5-DIMETHOXYTHIOPHENOL - Physico-chemical Properties
| Molecular Formula | C8H10O2S |
| Molar Mass | 170.23 |
| Density | 1.134 g/mL at 25 °C (lit.) |
| Melting Point | 248.3-252.0 °C (decomp) |
| Boling Point | 88-90 °C/0.5 mmHg (lit.) |
| Flash Point | >230°F |
| Solubility | Chloroform, Methanol |
| Vapor Presure | 0.00707mmHg at 25°C |
| Appearance | Oil |
| Color | Clear colorless to Pale Yellow |
| BRN | 1867842 |
| pKa | 6.37±0.48(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Sensitive | Stench |
| Refractive Index | n20/D 1.5860(lit.) |
2,5-DIMETHOXYTHIOPHENOL - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | 2810 |
| WGK Germany | 3 |
| Hazard Note | Irritant/Stench |
| Hazard Class | STENCH |
| Packing Group | III |
2,5-DIMETHOXYTHIOPHENOL - Introduction
2,5-dimethothoxythiophenol, also known as 2,5-dimethoxy phenol sulfate, is an organic compound. Its chemical formula is C9H12O3S, and the structural formula is CH3OC6H3-2-OHC6H4-OCH3.
In terms of properties, 2,5-dimethoxythiophenol is a colorless crystal or white crystalline powder with a strong phenolic flavor. It is soluble in organic solvents such as alcohols, ethers and ketones at room temperature, and soluble in hot water and acidic media. It is relatively stable to air and light.
2,5-dimethoxythiophenol has some uses in the chemical industry. It is often used as a vulcanizing agent in the rubber industry to promote the vulcanization reaction of rubber. In addition, it can be used as an intermediate in organic synthesis for the synthesis of other organic compounds.
in terms of preparation method, 2,5-dimethoxythiophenol is generally obtained by esterification of p-methoxyphenol with sulfuric acid. In the specific process, first, P-methoxyphenol and sulfuric acid are put into a reaction kettle according to a certain molar ratio, and then heated to Reflux reaction, and the reaction temperature and time are controlled, and finally the product is obtained.
Regarding safety information, 2,5-dimethoxythiophenol has low toxicity, but it is still necessary to pay attention to safe operation. The dust may cause irritation to the respiratory tract and skin, so appropriate protective gloves, masks and goggles should be worn during operation. At the same time, avoid contact with strong oxidants and acidic substances to avoid dangerous reactions. In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical attention. Ingestion or inhalation of large amounts of the substance should be treated immediately with medical attention.
In terms of properties, 2,5-dimethoxythiophenol is a colorless crystal or white crystalline powder with a strong phenolic flavor. It is soluble in organic solvents such as alcohols, ethers and ketones at room temperature, and soluble in hot water and acidic media. It is relatively stable to air and light.
2,5-dimethoxythiophenol has some uses in the chemical industry. It is often used as a vulcanizing agent in the rubber industry to promote the vulcanization reaction of rubber. In addition, it can be used as an intermediate in organic synthesis for the synthesis of other organic compounds.
in terms of preparation method, 2,5-dimethoxythiophenol is generally obtained by esterification of p-methoxyphenol with sulfuric acid. In the specific process, first, P-methoxyphenol and sulfuric acid are put into a reaction kettle according to a certain molar ratio, and then heated to Reflux reaction, and the reaction temperature and time are controlled, and finally the product is obtained.
Regarding safety information, 2,5-dimethoxythiophenol has low toxicity, but it is still necessary to pay attention to safe operation. The dust may cause irritation to the respiratory tract and skin, so appropriate protective gloves, masks and goggles should be worn during operation. At the same time, avoid contact with strong oxidants and acidic substances to avoid dangerous reactions. In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical attention. Ingestion or inhalation of large amounts of the substance should be treated immediately with medical attention.
Last Update：2024-04-10 22:30:50
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