ChemicalBook > CAS DataBase List > 5-Methyl-2-thiophenecarboxylic acid

5-Methyl-2-thiophenecarboxylic acid

Product Name
5-Methyl-2-thiophenecarboxylic acid
CAS No.
1918-79-2
Chemical Name
5-Methyl-2-thiophenecarboxylic acid
Synonyms
5-METHYLTHIOPHENE-2-CARBOXYLIC ACID;2-Thiophenecarboxylic acid, 5-methyl-;AKOS B000091;TIMTEC-BB SBB004146;RARECHEM AL BE 0181;5-METHYL-2-THENOIC ACID;Rivaroxaban Impurity 51;2-Carboxy-5-methylthiophene;ethyl-2-thiophenecarboxylic acid;5-Methylthiophen-2-carboxylic acid
CBNumber
CB3183843
Molecular Formula
C6H6O2S
Formula Weight
142.18
MOL File
1918-79-2.mol
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5-Methyl-2-thiophenecarboxylic acid Property

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
pka
3.71±0.10(Predicted)
color 
Clear
BRN 
113857
CAS DataBase Reference
1918-79-2(CAS DataBase Reference)
NIST Chemistry Reference
5-Methyl-2-thiophenecarboxylic acid (keto form)(1918-79-2)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
22-24/25
WGK Germany 
3
HazardClass 
IRRITANT
HS Code 
29309090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
M84429
Product name
5-Methyl-2-thiophenecarboxylic acid
Purity
99%
Packaging
5g
Price
$41.1
Updated
2023/06/20
Sigma-Aldrich
Product number
M84429
Product name
5-Methyl-2-thiophenecarboxylic acid
Purity
99%
Packaging
25g
Price
$255
Updated
2022/05/15
TCI Chemical
Product number
M1118
Product name
5-Methyl-2-thiophenecarboxylic Acid
Purity
>98.0%(GC)(T)
Packaging
5g
Price
$41
Updated
2024/03/01
Alfa Aesar
Product number
A17737
Product name
5-Methylthiophene-2-carboxylic acid, 98+%
Packaging
5g
Price
$43.65
Updated
2024/03/01
Alfa Aesar
Product number
A17737
Product name
5-Methylthiophene-2-carboxylic acid, 98+%
Packaging
25g
Price
$138.65
Updated
2024/03/01
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5-Methyl-2-thiophenecarboxylic acid Chemical Properties,Usage,Production

Chemical Properties

BEIGE CRYSTALLINE POWDER

Definition

ChEBI: 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

Raw materials

Preparation Products

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5-Methyl-2-thiophenecarboxylic acid Suppliers

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View Lastest Price from 5-Methyl-2-thiophenecarboxylic acid manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
5-Methyl-2-thiophenecarboxylic acid 1918-79-2
Price
US $1.00-1.00/KG
Min. Order
1g
Purity
99%
Supply Ability
50tons
Release date
2020-04-22
Hebei Guanlang Biotechnology Co,.LTD
Product
5-Methyl-2-thiophenecarboxylic acid 1918-79-2
Price
US $9.00/KG
Min. Order
1KG
Purity
99.8%
Supply Ability
100tons
Release date
2021-12-30
Shanghai kingmorn biotechnology Co.,LTD.
Product
5-Methyl-2-thiophenecarboxylic acid 1918-79-2
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
>100KG
Release date
2021-07-20

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