4-Hydroxybenzoic acid hexadecyl ester
hexadecyl 4-hydroxybenzoate
CAS: 71067-09-9
Molecular Formula: C23H38O3
4-Hydroxybenzoic acid hexadecyl ester - Names and Identifiers
| Name | hexadecyl 4-hydroxybenzoate |
| Synonyms | hexadecyl 4-hydroxybenzoate 4-Hydroxybenzoic acid hexadecyl ester Benzoic acid, 4-hydroxy-, hexadecyl ester |
| CAS | 71067-09-9 |
| InChI | InChI=1/C23H38O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-20-26-23(25)21-16-18-22(24)19-17-21/h16-19,24H,2-15,20H2,1H3 |
4-Hydroxybenzoic acid hexadecyl ester - Physico-chemical Properties
| Molecular Formula | C23H38O3 |
| Molar Mass | 362.55 |
| Density | 0.971 |
| Melting Point | 52.5-53.0 °C |
| Boling Point | 454.14°C (rough estimate) |
| Flash Point | 179.9°C |
| Water Solubility | 378.9mg/L(25 ºC) |
| Vapor Presure | 1.1E-09mmHg at 25°C |
| pKa | 8.22±0.15(Predicted) |
| Refractive Index | 1.5480 (estimate) |
4-Hydroxybenzoic acid hexadecyl ester - Introduction
hexadecyl 4-hydroxybenzoate (hexadecyl 4-hydroxybenzoate) is an organic compound formed by the reaction of hydroxybenzoic acid and hexadecanol. Its chemical formula is C22H36O3, and it is a white solid.
This compound is widely used in daily life as a sunscreen and antioxidant. It has good ultraviolet absorption properties, can effectively absorb ultraviolet rays and prevent ultraviolet rays from damaging the skin. In addition, it can be used as a preservative in cosmetics and personal care products.
The process for preparing hexadecyl 4-hydroxybenzoate is usually carried out by esterification of benzoic acid and cetyl alcohol. First, benzoic acid is reacted by heating with an appropriate acid catalyst to form the benzoate ester, which is then reacted with cetyl alcohol to form the hexadecyl 4-hydroxybenzoate. This process is usually carried out under an inert atmosphere to avoid the presence of oxygen affecting the product.
Regarding safety information, hexadecyl 4-hydroxybenzoate is a relatively safe compound, it still needs to follow appropriate use and handling methods. When in use, should avoid inhalation of dust or contact with skin and eyes. Use in a well-ventilated environment and observe personal protective measures, such as wearing chemical protective gloves and safety glasses. In the event of accidental exposure to the compound, the affected area should be flushed with water immediately and medical help should be sought as soon as possible.
This compound is widely used in daily life as a sunscreen and antioxidant. It has good ultraviolet absorption properties, can effectively absorb ultraviolet rays and prevent ultraviolet rays from damaging the skin. In addition, it can be used as a preservative in cosmetics and personal care products.
The process for preparing hexadecyl 4-hydroxybenzoate is usually carried out by esterification of benzoic acid and cetyl alcohol. First, benzoic acid is reacted by heating with an appropriate acid catalyst to form the benzoate ester, which is then reacted with cetyl alcohol to form the hexadecyl 4-hydroxybenzoate. This process is usually carried out under an inert atmosphere to avoid the presence of oxygen affecting the product.
Regarding safety information, hexadecyl 4-hydroxybenzoate is a relatively safe compound, it still needs to follow appropriate use and handling methods. When in use, should avoid inhalation of dust or contact with skin and eyes. Use in a well-ventilated environment and observe personal protective measures, such as wearing chemical protective gloves and safety glasses. In the event of accidental exposure to the compound, the affected area should be flushed with water immediately and medical help should be sought as soon as possible.
Last Update：2024-04-09 21:01:54
