ChemicalBook Product Catalog Pharmaceutical intermediates Heterocyclic compound Thiophene compounds 5-Methyl-2-thiophenecarboxylic acid

5-Methyl-2-thiophenecarboxylic acid

5-Methyl-2-thiophenecarboxylic acid Basic information
Product Name:5-Methyl-2-thiophenecarboxylic acid
Synonyms:RARECHEM AL BE 0181;TIMTEC-BB SBB004146;2-Carboxy-5-methylthiophene;2-Methyl-5-thiophenecarboxylic acid;2-Thiophenecarboxylic acid, 5-methyl-;5-Methyl-2-thiophenecaroboxylic acid;5-Methylthiophen-2-carboxylic acid;5-METHYL-2-THENOIC ACID
CAS:1918-79-2
MF:C6H6O2S
MW:142.18
EINECS:217-640-3
Product Categories:Building Blocks;Heterocyclic Building Blocks;Thiophene&Benzothiophene;Organic acids;Heterocyclic Compounds;Thiophenes;Acids and Derivatives;Heterocycles;Thiophens
Mol File:1918-79-2.mol
5-Methyl-2-thiophenecarboxylic acid Structure
5-Methyl-2-thiophenecarboxylic acid Chemical Properties
Melting point 135-138 °C(lit.)
Boiling point 229.75°C (rough estimate)
density 1.365 (estimate)
refractive index 1.5300 (estimate)
storage temp. 2-8°C(protect from light)
form Liquid
pka3.71±0.10(Predicted)
color Clear
BRN 113857
CAS DataBase Reference1918-79-2(CAS DataBase Reference)
NIST Chemistry Reference5-Methyl-2-thiophenecarboxylic acid (keto form)(1918-79-2)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 22-24/25
WGK Germany 3
HazardClass IRRITANT
HS Code 29309090
MSDS Information
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5-Methyl-2-thiophenecarboxylic acid English
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5-Methyl-2-thiophenecarboxylic acid Usage And Synthesis
Chemical PropertiesBEIGE CRYSTALLINE POWDER
DefinitionChEBI: 5-Methyl-2-thiophenecarboxylic acid is a thiophenecarboxylic acid.
Synthesis Reference(s)Tetrahedron Letters, 15, p. 2373, 1974 DOI: 10.1016/S0040-4039(01)92259-2
5-Methyl-2-thiophenecarboxylic acid Preparation Products And Raw materials
Preparation ProductsCIS-3-HEXENOIC ACID-->5-Methylthiophene-2-carboxaldehyde-->Methyl 5-(bromomethyl)-2-thiophenecarboxylate-->5-Methylthiophene-2,3-dicarboxylic Acid
methylbenzoic acid Methylparaben 3-Thiophenemalonic acid Methyl 2-Thiophenecarboxylic acid Bensulfuron methyl Parathion-methyl 2-(Trifluoromethyl)benzoic acid m-Toluic acid 4-(Chloromethyl)benzoic acid o-Toluic acid Kresoxim-methyl Thiophanate-methyl 4-(Aminomethyl)benzoic acid p-Toluic acid Methyl acrylate Methyl acetate Methyl bromide
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