3-Chloro-4-hydroxybenzoic acid hemihydrate
3-Chloro-4-hydroxybenzoic acid hemihydrate
CAS: 3964-58-7
Molecular Formula: C7H5ClO3
3-Chloro-4-hydroxybenzoic acid hemihydrate - Names and Identifiers
| Name | 3-Chloro-4-hydroxybenzoic acid hemihydrate |
| Synonyms | 3-Chloro-4-hydroxy RARECHEM AL BO 2160 TIMTEC-BB SBB008420 3-chloro-4-hydroxybenzoate 3-Chloro-4-hydroxybenzoic acid 3-CHLORO-4-HYDROXYBENZOIC ACID Benzoic acid, 3-chloro-4-hydroxy- 3-chloro-4-hydroxybenzoic acid hydrate 3-Chloro-4-hydroxybenzoic acid hemihydrate |
| CAS | 3964-58-7 |
| EINECS | 223-574-6 |
| InChI | InChI=1/C7H5ClO3/c8-5-3-4(7(10)11)1-2-6(5)9/h1-3,9H,(H,10,11)/p-1 |
3-Chloro-4-hydroxybenzoic acid hemihydrate - Physico-chemical Properties
| Molecular Formula | C7H5ClO3 |
| Molar Mass | 172.57 |
| Density | 1.536 |
| Melting Point | 171-173°C(lit.) |
| Boling Point | 331℃ |
| Flash Point | 154℃ |
| Solubility | soluble in Methanol |
| Vapor Presure | 6.65E-05mmHg at 25°C |
| Appearance | powder to crystal |
| Color | White to Almost white |
| BRN | 2207866 |
| pKa | 4.20±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4580 (estimate) |
| MDL | MFCD00002549 |
3-Chloro-4-hydroxybenzoic acid hemihydrate - 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 | 29182900 |
3-Chloro-4-hydroxybenzoic acid hemihydrate - Introduction
The hemihydrate acid is an organic compound with the chemical formula C7H5ClO4 · 0.5H2O. The following is an introduction to its nature, use, preparation and safety information:
Nature:
-Appearance: Colorless or slightly yellow crystalline solid.
-Melting point: about 170-173 degrees Celsius.
-Solubility: Soluble in water, slightly soluble in alcohol and ketone solvents.
-chemical properties: hydrolysis under strong alkaline conditions.
Use:
-acid hemihydrate has certain application value in the field of medicine, and can be used to synthesize drug intermediates and raw materials.
-It can also be used as an intermediate in organic synthesis and participate in a variety of chemical reactions.
Preparation Method:
-The preparation of acid hemihydrate can be obtained by heating and dissolving 3-chloro-4-hydroxybenzoic acid with an appropriate amount of water, and then slowly cooling and crystallizing.
Safety Information:
-During operation or storage, contact with strong bases, strong oxidants and combustibles should be avoided.
-Wear appropriate personal protective equipment such as goggles and gloves when using.
-Avoid inhaling its dust or gas and avoid contact with skin, eyes and mucous membranes.
-If ingested or inhaled by accident, seek medical help immediately and provide the container or label to the doctor.
Nature:
-Appearance: Colorless or slightly yellow crystalline solid.
-Melting point: about 170-173 degrees Celsius.
-Solubility: Soluble in water, slightly soluble in alcohol and ketone solvents.
-chemical properties: hydrolysis under strong alkaline conditions.
Use:
-acid hemihydrate has certain application value in the field of medicine, and can be used to synthesize drug intermediates and raw materials.
-It can also be used as an intermediate in organic synthesis and participate in a variety of chemical reactions.
Preparation Method:
-The preparation of acid hemihydrate can be obtained by heating and dissolving 3-chloro-4-hydroxybenzoic acid with an appropriate amount of water, and then slowly cooling and crystallizing.
Safety Information:
-During operation or storage, contact with strong bases, strong oxidants and combustibles should be avoided.
-Wear appropriate personal protective equipment such as goggles and gloves when using.
-Avoid inhaling its dust or gas and avoid contact with skin, eyes and mucous membranes.
-If ingested or inhaled by accident, seek medical help immediately and provide the container or label to the doctor.
Last Update：2024-04-09 15:17:57
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