4-HYDROXYINDOLE
4-Hydroxyindole
CAS: 2380-94-1
Molecular Formula: C8H7NO
4-HYDROXYINDOLE - Names and Identifiers
| Name | 4-Hydroxyindole |
| Synonyms | 4-INDOLOL INDOL-4-OL 1H-INDOL-4-OL 1H-INDOLE-4-OL 4-Hdroxyindole 4-Hydroxylndole 4-hydroxy-indol 4-HYDROXYINDOLE 4-Hydroxyindole 4-Hydroxxyindole 4-hydroxy indole 4-HYDROXY-1H-INDOLE 1,5-dihydro-4H-indol-4-one 4-Hydroxy Indole (4-Indolol) 4-Hydroxyindole in stock Factory |
| CAS | 2380-94-1 |
| EINECS | 219-177-2 |
| InChI | InChI=1/C8H7NO/c10-8-3-1-2-7-6(8)4-5-9-7/h1-2,4-5,9H,3H2 |
| InChIKey | NLMQHXUGJIAKTH-UHFFFAOYSA-N |
4-HYDROXYINDOLE - Physico-chemical Properties
| Molecular Formula | C8H7NO |
| Molar Mass | 133.15 |
| Density | 1.1475 (rough estimate) |
| Melting Point | 97-99°C(lit.) |
| Boling Point | 245.66°C (rough estimate) |
| Flash Point | 164°C |
| Water Solubility | slightly soluble |
| Solubility | Slightly soluble in water |
| Vapor Presure | 0.019Pa at 25℃ |
| Appearance | White-like transparent solid |
| Color | Dark Yellow to Green-Grey |
| BRN | 114905 |
| pKa | 9.89±0.40(Predicted) |
| Storage Condition | 0-6°C |
| Sensitive | Air Sensitive |
| Refractive Index | 1.5260 (estimate) |
| MDL | MFCD00005667 |
| Physical and Chemical Properties | Crystal. Melting point 97-99 °c. |
| Use | Used as a pharmaceutical Intermediate |
4-HYDROXYINDOLE - 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. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| HS Code | 29339900 |
| Hazard Note | Irritant |
| Hazard Class | IRRITANT, KEEP COLD |
4-HYDROXYINDOLE - Introduction
Slightly soluble in water, soluble in acetone.
Last Update：2022-10-16 17:15:09
4-HYDROXYINDOLE - Reference Information
| LogP | 1.57 at 25℃ |
| Biological activity | 4-Hydroxyindole is a type of hydroxy indole, and the 1H-indole at the 4 position is replaced by a hydroxyl group. 4-Hydroxyindole is an important raw material or intermediate for the synthesis of pharmaceutical products and industrial polymers. |
| Use | Used as an intermediate in organic synthesis. Used as a pharmaceutical intermediate |
| Production method | Using resorcinol as raw material, after isomerization, catalytic hydrogenation, and then cyclizing with ethyl bromopyruvate to obtain 4-oxotetrahydrocumarone carboxylic acid. Add it to an ammonia-saturated methanol solution and heat it in an autoclave to generate 4-oxotetrahydroindole. Finally, 4-hydroxyindole was prepared by dehydrogenation and isomerization. |
Last Update：2024-04-09 21:04:16
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View History
4-HYDROXYINDOLE
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4-吡啶基硼酸频哪醇酯
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METHYL 5-NITRO-2-(1-PYRROLIDINYL)BENZENECARBOXYLATE
4-((Trimethylsilyl)ethynyl)benzoic acid
6-氯-4-羟基-2-苯基喹啉
(3s)-4-[(2-Methylpropan-2-yl)oxy]-3-[(2-Methylpropan-2-yl)oxycarbonylaMino]-4-oxobutanoic Acid
2-(4-(三氟甲氧基)苯基)戊-4-炔-2-醇
6-氟-3-羟基-2-甲基苯甲醛
N-(3-乙炔基苯基)-2-(甲基氨基)醋胺石盐酸
4-吡啶基硼酸频哪醇酯
ISOCYANIC ACID OCTADECYL ESTER
METHYL 5-NITRO-2-(1-PYRROLIDINYL)BENZENECARBOXYLATE
4-((Trimethylsilyl)ethynyl)benzoic acid
6-氯-4-羟基-2-苯基喹啉
(3s)-4-[(2-Methylpropan-2-yl)oxy]-3-[(2-Methylpropan-2-yl)oxycarbonylaMino]-4-oxobutanoic Acid
2-(4-(三氟甲氧基)苯基)戊-4-炔-2-醇
6-氟-3-羟基-2-甲基苯甲醛