应用
3-Methyl-2-pyrazolin-5-one is used in the preparation of spirocyclic [indole-3,4'-pyrano[2,3-c]pyrazole] by reacting with isatins and malonitrile in the presence of sodium bromide as electrolyte.
备注
Incompatible with oxidizing agents.
基本信息
MDL
MFCD00020699
EINECS
203-565-3
分子式
C4H6N2O
分子量
98.11
熔点
220-224°
灵敏度
Ambient temperatures.
形态
Crystalline powder
溶解性
Slightly soluble in ethanol.
GHS危害和防范说明
GHS符号
Hazard Statements
H315-H319-H335
Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.
Precautionary Statements
P261-P280a-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray.Wear protective gloves and eye/face protection.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.
安全信息
危险类别
36/37/38
Irritating to eyes, respiratory system and skin.
安全等级
26-37
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RTECS
UQ9451500
TSCA
是