Name | 4-METHOXYCINNAMIC ACID |
Synonyms | 4-METHOXYCINNAMIC ACID 4-Methoxycinnamic acid (E)-4-Methoxycinnamic acid trans-4-MethoxyClnnamic acid p-Methoxy-trans-cinnamic acid 4-Methoxy-trans-cinnamic acid |
CAS | 943-89-5 |
EINECS | 213-405-4 |
InChIKey | AFDXODALSZRGIH-QPJJXVBHSA-N |
Molecular Formula | C10H10O3 |
Molar Mass | 178.18 |
Density | 1.195±0.06 g/cm3(Predicted) |
Melting Point | 173.5 °C(lit.) |
Boling Point | 342.6±17.0 °C(Predicted) |
pKa | 4.60±0.10(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
MDL | MFCD00004398 |
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 |
RTECS | UD3391300 |
FLUKA BRAND F CODES | 8 |
TSCA | Yes |
Hazard Class | IRRITANT |
Reference Show more | 1. [IF=7.514] Jie Meng et al."Conduction of a chemical structure-guided metabolic phenotype analysis method targeting phenylpropane pathway via LC-MS: Ginkgo biloba and soybean as examples."FOOD CHEMISTRY. 2022 Oct;390:133155 |
solubility | Soluble in ethanol, ethyl acetate and other organic solvents. |
BRN | 510468 |
NIST chemical information | 2-Propenoic acid, 3-(4-methoxyphenyl)-, (e)-(943-89-5) |
EPA chemical information | 2-Propenoic acid, 3-(4-methoxyphenyl)-, (2E)- (943-89-5) |
p-methoxycinnamic acid sunscreen
At present, the most commonly used p-methoxycinnamic acid sunscreen agent is p-methoxycinnamate octyl, which is a colorless or light yellow liquid, insoluble in water, soluble in organic solvents such as ethanol and ethyl acetate, It has no irritation to the skin, has high safety in use, and has high ultraviolet absorption rate for UVB area, can effectively prevent 280-330mm ultraviolet rays, and has high absorption rate. It is; it can effectively prevent skin redness and sunburn. At present, this raw material is widely used in many sunscreen cosmetics in various countries. It is obtained by the reaction of p-methoxybenzaldehyde and malonic acid.
Preparation method
p-methoxybenzaldehyde was used as raw material, ammonium acetate was used as catalyst, microwave radiation technology was used, and p-methoxycinnamic acid was synthesized under solvent-free conditions through verta reaction.
biological activity
(E)-3-(4-Methoxyphenyl)acrylic acid (compound 3) can be separated from Arachis hypogaea,Scrophularia buergeriana Miquel,Aquilegia vulgaris,Anigozanthos preissii, etc. (E)-3-(4-Methoxyphenyl)acrylic acid has significant liver protective activity, anti-amnesia, enhancing cognitive activity, lowering blood sugar and neuroprotective activity.