5-Methylisoxazole-3-carbonyl chloride

5-Methylisoxazole-3-carbonyl chloride - Names and Identifiers

Name	5-Methylisoxazole-3-carbonyl chloride
Synonyms	BUTTPARK 278-48 TIMTEC-BB SBB005468 5-METHYLISOXAZOLE-3-CARBONYL CHLORIDE 5-Methylisoxazole-3-carbonyl chloride 5-METHYLISOXAZOLE-3-CARBONYL CHLORIDE, TECH 5-Methyl-3-isoxazolecarboxylic acid chloride 5-Methyl-3-carboxy acid chloride isoxazole 3-Isoxazolecarbonyl chloride, 5-methyl- (7CI,9CI)
CAS	39499-34-8
EINECS	254-475-6
InChI	InChI=1/C5H4ClNO2/c1-3-2-4(5(6)8)7-9-3/h2H,1H3

5-Methylisoxazole-3-carbonyl chloride - Physico-chemical Properties

Molecular Formula	C5H4ClNO2
Molar Mass	145.54
Density	1.345±0.06 g/cm3(Predicted)
Boling Point	104 °C
Flash Point	101.2°C
Vapor Presure	0.0317mmHg at 25°C
pKa	-6.37±0.50(Predicted)
Storage Condition	2-8℃
Sensitive	Moisture Sensitive
Refractive Index	1.498
MDL	MFCD00085127

5-Methylisoxazole-3-carbonyl chloride - Risk and Safety

Risk Codes	R34 - Causes burns R36 - Irritating to the eyes
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
UN IDs	3261
Hazard Note	Corrosive
Hazard Class	8
Packing Group	II

5-Methylisoxazole-3-carbonyl chloride - Introduction

chloride is an organic compound with the chemical formula C5H4ClNO2. It is a compound containing an isoxazole ring and a formyl chloride substituent in the structure. The following is a description of the nature, use, preparation and safety information of the chloride:

Nature:
-Appearance: Colorless or light yellow liquid.
-Melting point: about 27-30°C.
-Boiling point: about 131-132 ℃.
-Density: about 1.336g/cm³.
-Solubility: Soluble in organic solvents such as ethanol and dimethylformamide.

Use:
The chloride is widely used in organic synthesis and is often used in the synthesis of drugs, pesticides, dyes and other organic compounds. It participates as an intermediate in a variety of chemical reactions, such as alkylation reactions, nucleophilic substitution reactions, and condensation reactions.

Preparation Method:
The calcium chloride can be prepared by the following steps:
1.5-methylisoxazole is reacted with thionyl chloride in a solvent to generate 5-methylisoxazole -3-sulfoxide.
2. React 5-methylisoxazole-3-sulfoxide with thionyl chloride under alkaline conditions to obtain chloride.

Safety Information:
Although detailed safety information may vary from manufacturer to manufacturer, chloride may be irritating to the skin, eyes and respiratory system, so it is necessary to take appropriate safety measures when using them, such as wearing protective gloves, goggles and respiratory protection equipment. At the same time, it should also be stored in a sealed container, away from fire and oxidizing agents. When handling and using this compound, please refer to the relevant safety data sheet and safety instructions provided by the manufacturer.

Last Update：2024-04-09 21:11:58