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Ethyl 3,4-dihydroxybenzoate CAS: 3943-89-3

Name: Ethyl 3,4-dihydroxybenzoateCAS: 3943-89-3Appearance: White powderAssay: ≥99%Capacity: 100mt/ye

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Konten

Name: Ethyl 3,4-dihydroxybenzoate
CAS: 3943-89-3
Tampaknya: bubuk putih
Ujian: ≥99%
Kapasitas: 100mt/tahun
Min.package: 100gram
Application: Erlotinib intermediate and food additive
Standard: Ekspor Enterprise

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.

NamaEthyl 3,4-dihydroxybenzoate
SinonimRARECHEM 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)
CAS3943-89-3
EINECS223-529-0
InChIInChI=1/C9H10O4/c1-2-13-9(12)6-3-4-7(10)8(11)5-6/h3-5,10-11H,2H2,1H3
InChIKeyKBPUBCVJHFXPOC-UHFFFAOYSA-N
Rumus MolekulerC9H10O4
Massa Molar182.17
Kepadatan1.2481 (rough estimate)
Titik Melting132-134°C(lit.)
Titik Boling275.56°C (rough estimate)
Titik Flash147°C
Kelarutan airInsoluble in water. Soluble in ethanol.
Tekanan Vapor0-9.4Pa at 20-120℃
PenampilanYellow powder
warnaPale yellow to beige
BRN2097435
pKa8.19±0.18(Predicted)
Kondisi penyimpananTerkunci dalam kering,Suhu Kamar
Indeks Refraksi1.4500 (estimate)
MDLMFCD00002199
Sifat fisik dan kimiaWhite 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.
PenggunaanUsed as food additives, pharmaceutical intermediates, etc

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