3401-80-7
3,6-Dichloro-2-Hydroxybenzoic Acid
CAS: 3401-80-7
Molecular Formula: C7H4Cl2O3
3401-80-7 - Names and Identifiers
| Name | 3,6-Dichloro-2-Hydroxybenzoic Acid |
| Synonyms | AKOS BBS-00006746 Dichlorosalicylicacid OTAVA-BB BB7020410042 3,6-dichloro-salicylicaci 3,6-Dichlorosalicylic Acid 3,6-DICHLOROSALICYLIC ACID 2-hydroxy-3,6-dichlorobenzoic acid 3,6-Dichloro-2-Hydroxybenzoic Acid 3,6-Dichloro-2-Hydroxy Benzoic Acid 3,6-DICHLORO-2-HYDROXY BENZOIC ACID Benzoic acid,3,6-dichloro-2-hydroxy- |
| CAS | 3401-80-7 |
| EINECS | 222-275-8 |
| InChI | InChI=1/C7H4Cl2O3/c8-3-1-2-4(9)6(10)5(3)7(11)12/h1-2,10H,(H,11,12) |
3401-80-7 - Physico-chemical Properties
| Molecular Formula | C7H4Cl2O3 |
| Molar Mass | 207.01 |
| Density | 1.5281 (rough estimate) |
| Melting Point | approximate 195℃ (dec.) |
| Boling Point | 297.29°C (rough estimate) |
| Flash Point | 139.3°C |
| Solubility | DMSO (Soluble), Methanol (Slightly) |
| Vapor Presure | 0.000331mmHg at 25°C |
| Appearance | Solid |
| Color | White to Off-White |
| pKa | 1.99±0.25(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.4845 (estimate) |
| Physical and Chemical Properties | This product is white crystal, m.p.188 ~ 191 ℃, insoluble in water, soluble in alkali and organic solvents. |
3401-80-7 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | 3, 6-dichloro-2-hydroxybenzoic acid is an intermediate of the herbicide dicamba. |
| production method | its preparation method is to prepare sodium phenol salt solution with 2,5-dichlorophenol and liquid caustic soda, dry it in vacuum, then cool the kettle to 100 ℃, slowly introduce dry carbon dioxide, stop the feed of carbon dioxide when the pressure in the kettle reaches 588 ~ 686kPa, and generate phenol carbonate, the molecular rearrangement reaction occurs at 130~140 ℃ to obtain sodium 3, 6-dichloro-2-hydroxybenzoate, which is then dissolved in water, filtered, and acidized to obtain the product. |
Last Update：2024-04-09 21:04:16
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