1H-Indazole, 3-chloro-
3-chloro-1H-indazole
CAS: 29110-74-5
Molecular Formula: C7H5ClN2
1H-Indazole, 3-chloro- - Names and Identifiers
| Name | 3-chloro-1H-indazole |
| Synonyms | 3-CHLOROINDAZOLE TIMTEC-BB SBB004051 3-CHLORO-1H-INDAZOLE 3-Chloro-1H-indazole 3-chloro-1H-indazole 3-chloro-2H-indazole 1H-Indazole, 3-chloro- |
| CAS | 29110-74-5 |
| EINECS | 249-444-9 |
| InChI | InChI=1/C7H5ClN2/c8-7-5-3-1-2-4-6(5)9-10-7/h1-4H,(H,9,10) |
1H-Indazole, 3-chloro- - Physico-chemical Properties
| Molecular Formula | C7H5ClN2 |
| Molar Mass | 152.58 |
| Density | 1.2763 (rough estimate) |
| Melting Point | 149°C (subl.)(lit.) |
| Boling Point | 250.67°C (rough estimate) |
| Flash Point | 59.4°C |
| Vapor Presure | 3.03mmHg at 25°C |
| Appearance | Fluffy Powder |
| Color | Almost white to light beige |
| pKa | 11.93±0.40(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.5500 (estimate) |
| MDL | MFCD00067527 |
| Physical and Chemical Properties | White crystal. Melting point 149 ℃ (sublimation). |
1H-Indazole, 3-chloro- - 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. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| HS Code | 29339980 |
| Hazard Note | Irritant |
1H-Indazole, 3-chloro- - Reference Information
| application | 3-chloroindazole is an indazole with electron-withdrawing substituents. |
| chemical properties | white crystal. Melting point 149 ℃ (sublimation). |
| use | organic synthesis intermediate. |
| production method | 3-indazolone is dissolved in anhydrous pyridine and reacted with phosphorus oxychloride at 128-140 ℃ to obtain a yield of 68-74. |
Last Update：2024-04-10 22:29:15
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