5-Methyl-2-thiophenecarboxylic acid

Purity : >98.0%(GC)(T)

CAS No.: 1918-79-2
EC No.: 217-640-3
EC Name: 5-methylthiophene-2-carboxylic acid
ECHA Name: 5-methylthiophene-2-carboxylic acid

5-Methylthiophene-2-carboxylic acid
2-Thiophenecarboxylic acid, 5-methyl-
5-Methyl-2-thenoic Acid

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SKU: 5-Methyl-2-thiophenecarboxylic acid ; 1918-79-2 ; 5-methylthiophene-2-carboxylic acid ; 217-640-3 ; 5-methylthiophene-2-carboxylic acid ; 100.016.038 Category:
Purity / Analysis Method >98.0%(GC)(T)
Molecular Formula / Molecular Weight C__6H__6O__2S = 142.17
Physical State (20 deg.C) Solid
CAS RN 1918-79-2
PubChem Substance ID 87573083
MDL Number MFCD00005439

Specification & Properties

Appearance White to Light yellow to Dark green powder to crystal
Purity(GC) min. 98.0 %
Purity(Neutralization titration) min. 98.0 %
Melting point 135.0 to 139.0 deg.C
Melting Point 137 deg.C

Safety & Regulations

Safety Information:
Chemical Safety Chemical Safety
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
Transport Information:
Hazard Classification:

According to the classification provided by companies to ECHA in CLP notifications this substance
causes serious eye irritation,
is harmful if swallowed,
causes skin irritation and
may cause respiratory irritation.

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