LABOTEST-BB LT01596126
p-Hydrazinobenzoic acid hydrochloride
CAS: 24589-77-3
Molecular Formula: C7H9ClN2O2
LABOTEST-BB LT01596126 - Names and Identifiers
| Name | p-Hydrazinobenzoic acid hydrochloride |
| Synonyms | BIO-FARMA BF001082 LABOTEST-BB LT01596126 4-hydrazinylbenzoic acid 4-HYDRAZINOBENZOIC ACID HCL P-CARBOXYPHENYL HYDRAZINE HCL p-Hydrazinobenzoic acid hydrochloride P HYDRAZINOBENZOIC ACID HYDROCHLORIDE 4-HYDRAZINOBENZOIC ACID HYDROCHLORIDE 4-CARBOXYPHENYLHYDRAZINE HYDROCHLORIDE 4-hydrazino-benzoicacimonohydrochloride |
| CAS | 24589-77-3 |
| EINECS | 246-330-0 |
| InChI | InChI=1/C7H8N2O2.ClH/c8-9-6-3-1-5(2-4-6)7(10)11;/h1-4,9H,8H2,(H,10,11);1H |
| InChIKey | XHLQMKQBCHYRLC-UHFFFAOYSA-N |
LABOTEST-BB LT01596126 - Physico-chemical Properties
| Molecular Formula | C7H9ClN2O2 |
| Molar Mass | 188.61 |
| Melting Point | 253°C (dec.)(lit.) |
| Boling Point | 377.2°C at 760 mmHg |
| Flash Point | 181.9°C |
| Water Solubility | Soluble in water. |
| Vapor Presure | 2.32E-06mmHg at 25°C |
| Appearance | White powder |
| Storage Condition | 2-8°C |
| MDL | MFCD00039073 |
| Use | Applied to pharmaceutical intermediates. |
LABOTEST-BB LT01596126 - 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. |
| WGK Germany | 3 |
| RTECS | DH1700000 |
| TSCA | Yes |
LABOTEST-BB LT01596126 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | 4-carboxyphenylhydrazine hydrochloride is an important intermediate, especially a pharmaceutical intermediate, mainly used to produce Indole and pyrazolone derivatives can also be used to produce other chemical products. Applied to pharmaceutical intermediates. |
| preparation | add 150ml of water to a 600ml beaker, stir, add 27.4g of p-aminobenzoic acid and 57.5ml of 10N hydrochloric acid, cool the solution to 0 ℃, slowly add sodium nitrite solution (prepared by 15g of sodium nitrite and 30ml of water), finish the addition, adjust the pH of the system to 1-2, control the temperature of the reaction system to 5 ℃, and react for 20 minutes, filter and retain the filtrate. Add 200ml of water to a 1000ml beaker, add 64g of sodium metabisulfite and 78g of sodium hydroxide under stirring. At this time, the pH of the solution is 7 and the temperature of the solution is 35 ℃. After the solution is cooled to 15-18 ℃, slowly add the above filtrate. After adding the solution, the temperature of the solution is 20 ℃ and the pH is 7. After 30 minutes of reaction, the temperature is increased to 50-60 ℃, 115ml of hydrochloric acid is added, and the temperature is continued to 97-100 ℃, after reacting at this temperature for 30 minutes, add 7 grams of activated carbon, filter and retain the filtrate at 90°C after decolorization, cool to 15°C, add hydrochloric acid, precipitate the material, filter, and drain to obtain 4-carboxyphenylhydrazine hydrochloride product. The purity of 4-carboxyphenylhydrazine hydrochloride was 98.92% by high performance liquid chromatography. |
Last Update：2024-04-09 20:52:54
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