Product name

2-Thiophenecarboxaldehyde

Alias

Thiophen-2-carboxaldehyde; Thiophen-2-carboxaldehyde

CAS RN

98-03-3

EINECS number

202-629-8

Molecular formula

C5H4OS

Molecular weight

112.1497

Dangerous goods sign

Xn:Harmful

Risk term

R22 ;  R43 ;

Security term

S24 ;  S37 ;

Physical and chemical properties

Property An oily liquid with a smell similar to almonds. 
Boiling point: 197°C; 
Relative density: 1.215; 
Refractive index: 1.5920; 
Flash point: 77°C; 
Solubility: Easily soluble in ethanol, benzene, ether, and slightly soluble in water.

Uses

Used as an intermediate for the broad-spectrum anthelmintic drug pyrantel and the drug Pioneermycin No. 1, 2, etc.