| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Email: |
saleschina@alfa-asia.com |
| Company Name: |
Energy Chemical |
| Tel: |
400-0056266 |
| Email: |
sales8178@energy-chemical.com |
2-Mercapto-5-methoxybenzothiazole manufacturers
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| | 2-Mercapto-5-methoxybenzothiazole Basic information |
| Product Name: | 2-Mercapto-5-methoxybenzothiazole | | Synonyms: | 5-METHOXYBENZOTHIAZOLE-2-THIOL;5-methoxybenzothiazole-2(3H)-thione;2-MERCAPTO-5-METHOXYBENZOTHIAZOLE 98+%;2(3H)-Benzothiazolethione,5-methoxy-(9CI);5-Methoxy-2(3H)-benzothiazolethione;5-Methoxy-2-benzothiazolethiol;5-Methoxy-2-mercaptobenzothiazole;5-Methoxybenzo[d]thiazole-2(3H)-thione | | CAS: | 55690-60-3 | | MF: | C8H7NOS2 | | MW: | 197.28 | | EINECS: | 259-755-1 | | Product Categories: | BENZOTHIAZOLE | | Mol File: | 55690-60-3.mol |  |
| | 2-Mercapto-5-methoxybenzothiazole Chemical Properties |
| Melting point | 190-193°C | | Boiling point | 340.8±44.0 °C(Predicted) | | density | 1.44±0.1 g/cm3(Predicted) | | storage temp. | Sealed in dry,Room Temperature | | form | powder to crystal | | pka | 9.27±0.20(Predicted) | | color | Light yellow to Yellow to Orange | | Water Solubility | Insoluble in water. | | BRN | 142225 |
| Safety Statements | 22-24/25 | | HS Code | 2934.20.8000 | | HazardClass | IRRITANT |
| Provider | Language |
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ALFA
| English |
| | 2-Mercapto-5-methoxybenzothiazole Usage And Synthesis |
| Uses | 2-Mercapto-5-methoxybenzothiazole is used as an intermediate in organic synthesis. | | Synthesis | General procedure for the synthesis of 2-mercapto-5-methoxybenzothiazole from 4-chloro-3-nitroanisole: 244 g of sodium polysulfide solution was mixed with 30 g of 1-chloro-4-methoxy-2-nitrobenzene, followed by the addition of 20 mL of carbon disulfide and continuous stirring. The reaction mixture was heated to reflux and maintained for about 5 hours, during which time a yellow solid precipitate was observed to form. Upon completion of the reaction, the mixture was filtered and the filtrate was diluted to 1000 mL with water to obtain an orange-yellow solution. The solution was neutralized to neutral with 6 M hydrochloric acid, at which point a light yellow solid precipitated. The solid product was collected by filtration, washed well with water and dried. Finally, 29.4 g of the target product 2-mercapto-5-methoxybenzothiazole was obtained in 93.1% yield. | | References | [1] Patent: US2010/292285, 2010, A1. Location in patent: Page/Page column 2; 3
[2] Patent: US5451594, 1995, A |
| | 2-Mercapto-5-methoxybenzothiazole Preparation Products And Raw materials |
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