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.
alam:
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.
Tujuan:
Metode pembuatan:
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.
Informasi keamanan:
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.
Nama | Ethyl 3,4-dihydroxybenzoate |
Sinonim | 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 |
Rumus Molekuler | C9H10O4 |
Massa Molar | 182.17 |
Kepadatan | 1.2481 (rough estimate) |
Titik Melting | 132-134°C(lit.) |
Titik Boling | 275.56°C (rough estimate) |
Titik Flash | 147°C |
Kelarutan air | Insoluble in water. Soluble in ethanol. |
Tekanan Vapor | 0-9.4Pa at 20-120℃ |
Penampilan | Yellow powder |
warna | Pale yellow to beige |
BRN | 2097435 |
pKa | 8.19±0.18(Predicted) |
Kondisi penyimpanan | Terkunci dalam kering,Suhu Kamar |
Indeks Refraksi | 1.4500 (estimate) |
MDL | MFCD00002199 |
Sifat fisik dan kimia | 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. |
Penggunaan | Used as food additives, pharmaceutical intermediates, etc |
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