Name: Ethyl 3,4-dihydroxybenzoateCAS: 3943-89-3Appearance: White powderAssay: ≥99%Capacity: 100mt/ye
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Synonyms: Protocatechuic acid ethyl ester Molecular Formula: C9H10O4 Molecular Weight: 182.17 CAS Registry Number: 3943-89-3 EINECS: 223-529-0
Ethyl 3,4-dihydroxybenzoate, also known as ethyl 3,4-dihydroxybenzoate.
nature :
Ethyl 3,4-dihydroxybenzoate is a colorless to slightly yellow liquid with an aromatic odor. It is soluble in organic solvents such as alcohols, ethers, and ketones, and insoluble in water. This compound exhibits ester like properties and has a certain degree of stability.
Objectif :
Méthode de fabrication :
There are many methods for preparing 3,4-dihydroxybenzoic acid ethyl ester, and the commonly used method is through esterification reaction of hydroxybenzoic acid ethyl ester. The specific method can be obtained by reacting p-hydroxybenzoic acid with acetic anhydride under acid catalysis.
Informations de sécurité :
Ethyl 3,4-dihydroxybenzoate is an organic compound, and safety precautions should be taken when using it. It may have irritating effects on the skin, eyes, and respiratory tract, and appropriate protective equipment should be worn when using it. If accidentally exposed or inhaled, please wash immediately or seek medical assistance. It should be stored in a cool, dry, well ventilated place, away from sources of fire and oxidants.
Nom | Ethyl 3,4-dihydroxybenzoate |
Synonymes | RARECHEM AL BI 0069 ETHYL PROTOCATECHUATE Ethyl 3,4-dihydrobenzoate ETHYL 3,4-DIHYDROXYBENZOATE Ethyl 3,4-dihydroxybenzoate PROTOCATECHUIC ACID ETHYL ESTER 3,4-Dihydroxybenzoic acid ethyl ester 3,4-DIHYDROXYBENZOIC ACID ETHYL ESTER ETHYL 3,4-DIHYDROXYBENZOATE (PROTOCATECHUIC ACID ETHYL ESTER) |
CAS | 3943-89-3 |
EINECS | 223-529-0 |
InChI | InChI=1/C9H10O4/c1-2-13-9(12)6-3-4-7(10)8(11)5-6/h3-5,10-11H,2H2,1H3 |
Inchikey | KBPUBCVJHFXPOC-UHFFFAOYSA-N |
Formule moléculaire | C9H10O4 |
Masse molaire | 182.17 |
Densité | 1.2481 (rough estimate) |
Point de fusion | 132-134°C(lit.) |
point Boling | 275.56°C (rough estimate) |
Point d'éclair | 147°C |
Solubilité dans l'eau | Insoluble in water. Soluble in ethanol. |
pression vapeur | 0-9.4Pa at 20-120℃ |
Apparence | Yellow powder |
Couleur | Pale yellow to beige |
BRN | 2097435 |
Le PKA | 8.19±0.18(Predicted) |
Condition de stockage | Scellé à sec, température ambiante |
Indice de réfraction | 1.4500 (estimate) |
MDL | MFCD00002199 |
Propriétés physiques et chimiques | White or light brown yellow crystalline powder. No odor or slightly phenol odor. The taste was slightly bitter. The melting point was 132-135 °c. Insoluble in water, soluble in ethanol. |
Utilisation | Used as food additives, pharmaceutical intermediates, etc |
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