4-BROMO-1H-PYRAZOLE-3-CARBOXYLICACIDMETHYLESTER

4-BROMO-1H-PYRAZOLE-3-CARBOXYLICACIDMETHYLESTER - Names and Identifiers

Name	1H-Pyrazole-3-carboxylicacid, 4-bromo-, methyl ester
Synonyms	4-BROMO-1H-PYRAZOLE-3-CARBOXYLI methyl 4-bromo-1H-pyrazole-3-carboxylate Methyl 3-broMo-1H-pyrazole-4-carboxylate 4-broMopyrazole-3-carboxylic acid Methyl ester 4-BROMO-1H-PYRAZOLE-3-CARBOXYLICACIDMETHYLESTER 1H-Pyrazole-3-carboxylicacid, 4-bromo-, methyl ester 1H-Pyrazole-3-carboxylic acid, 4-bromo-, methyl ester 4-Bromo-3-(methoxycarbonyl)-1H-pyrazole, Methyl 4-bromo-1H-pyrazole-5-carboxylate
CAS	81190-89-8

4-BROMO-1H-PYRAZOLE-3-CARBOXYLICACIDMETHYLESTER - Physico-chemical Properties

Molecular Formula	C5H5BrN2O2
Molar Mass	205.01
Density	1.781
Boling Point	318℃
Flash Point	146℃
pKa	9.75±0.50(Predicted)
Storage Condition	2-8°C

4-BROMO-1H-PYRAZOLE-3-CARBOXYLICACIDMETHYLESTER - Risk and Safety

Hazard Class

IRRITANT

4-BROMO-1H-PYRAZOLE-3-CARBOXYLICACIDMETHYLESTER - Introduction

4-bromo-, methyl ester is an organic compound with the chemical formula C6H5BrN2O2.

Nature:
, 4-bromo-, methyl ester is a colorless liquid with a special smell. It is stable at room temperature, but flammable, and can react with water to produce hydrogen bromide acid.

Use:
4-bromo-, methyl ester is commonly used as an important intermediate in organic synthesis. It can be used as a synthetic raw material for pesticides, pharmaceuticals and dyes, and can also be used to prepare various organic compounds.

Preparation Method:
The preparation of 4-bromo-, methyl ester can be achieved by a variety of methods. Common methods include the reaction of pyrazole and ethyl bromoformate under basic conditions, or the reaction of pyrazole and bromohydrin in an excess of methanol.

Safety Information:
, 4-bromo-, methyl ester is irritating and corrosive. Care should be taken to prevent skin contact and inhalation during handling and storage. Wear appropriate protective equipment such as chemical protective gloves and goggles when handling. During use and storage, keep away from ignition and oxidizing agents. In case of inadvertent contact or inhalation, the skin should be cleaned immediately or given the necessary respiratory care.

Last Update：2024-04-09 02:00:48