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

5-Methyl-2-thiophenecarboxylic acid

5-Methyl-2-thiophenecarboxylic acid price.
  • $8 - $2644
  • Product name: 5-Methyl-2-thiophenecarboxylic acid
  • CAS: 1918-79-2
  • MF: C6H6O2S
  • MW: 142.18
  • EINECS:217-640-3
  • MDL Number:MFCD00005439
  • Synonyms:RARECHEM AL BE 0181;TIMTEC-BB SBB004146;2-Carboxy-5-methylthiophene;2-Methyl-5-thiophenecarboxylic acid;5-Methyl-2-thiophenecaroboxylic acid;5-Methylthiophen-2-carboxylic acid;5-METHYL-2-THENOIC ACID;5-METHYL-2-THIOPHENECARBOXYLIC ACID
Price68 Properties Safety Information Description
68 prices
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  • aablocks
  • Activate Scientific
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  • Manufactureraablocks
  • Product numberAA002FEF
  • Product description5-Methylthiophene-2-carboxylic acid 98%
  • Packaging25g
  • Price$19
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA002FEF
  • Product description5-Methylthiophene-2-carboxylic acid 98%
  • Packaging100g
  • Price$56
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA002FEF
  • Product description5-Methylthiophene-2-carboxylic acid 97%
  • Packaging10g
  • Price$12
  • Updated2026-05-28
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  • Manufactureraablocks
  • Product numberAA002FEF
  • Product description5-Methylthiophene-2-carboxylic acid 98%
  • Packaging5g
  • Price$8
  • Updated2026-05-28
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  • ManufacturerActivate Scientific
  • Product numberAS20140
  • Product description5-Methyl-2-thiophenecarboxylic Acid 98%
  • Packaging25g
  • Price$46
  • Updated2026-06-04
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  • ManufacturerActivate Scientific
  • Product numberAS20140
  • Product description5-Methyl-2-thiophenecarboxylic Acid 98%
  • Packaging100g
  • Price$129
  • Updated2026-06-04
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  • ManufacturerActivate Scientific
  • Product numberAS20140
  • Product description5-Methyl-2-thiophenecarboxylic Acid 98%
  • Packaging5g
  • Price$19
  • Updated2026-06-04
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  • ManufacturerAHH
  • Product numberMT-18971
  • Product description5-Methyl-2-thiophenecarboxylic acid 97%
  • Packaging250g
  • Price$335
  • Updated2026-05-26
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  • ManufacturerAK Scientific
  • Product numberJ55012
  • Product description5-Methyl-2-thiophenecarboxylic acid 95%
  • Packaging5g
  • Price$12
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberD104
  • Product description5-Methyl-2-thiophenecarboxylic acid 98%(HPLC)
  • Packaging5g
  • Price$16
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberJ55012
  • Product description5-Methyl-2-thiophenecarboxylic acid 95%
  • Packaging25g
  • Price$27
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberD104
  • Product description5-Methyl-2-thiophenecarboxylic acid 98%(HPLC)
  • Packaging100g
  • Price$99
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberJ55012
  • Product description5-Methyl-2-thiophenecarboxylic acid 95%
  • Packaging100g
  • Price$76
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberD104
  • Product description5-Methyl-2-thiophenecarboxylic acid 98%(HPLC)
  • Packaging25g
  • Price$36
  • Updated2026-06-04
  • Buy
  • ManufacturerAlichem
  • Product number1918792
  • Product description5-Methylthiophene-2-carboxylicacid
  • Packaging500g
  • Price$439
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0020629
  • Product description5-METHYL-2-THIOPHENECARBOXYLIC ACID 95.00%
  • Packaging2.5G
  • Price$746.88
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA002FEF 5-Methylthiophene-2-carboxylic acid 98% 25g $19 2026-05-28 Buy
aablocks AA002FEF 5-Methylthiophene-2-carboxylic acid 98% 100g $56 2026-05-28 Buy
aablocks AA002FEF 5-Methylthiophene-2-carboxylic acid 97% 10g $12 2026-05-28 Buy
aablocks AA002FEF 5-Methylthiophene-2-carboxylic acid 98% 5g $8 2026-05-28 Buy
Activate Scientific AS20140 5-Methyl-2-thiophenecarboxylic Acid 98% 25g $46 2026-06-04 Buy
Activate Scientific AS20140 5-Methyl-2-thiophenecarboxylic Acid 98% 100g $129 2026-06-04 Buy
Activate Scientific AS20140 5-Methyl-2-thiophenecarboxylic Acid 98% 5g $19 2026-06-04 Buy
AHH MT-18971 5-Methyl-2-thiophenecarboxylic acid 97% 250g $335 2026-05-26 Buy
AK Scientific J55012 5-Methyl-2-thiophenecarboxylic acid 95% 5g $12 2026-06-04 Buy
AK Scientific D104 5-Methyl-2-thiophenecarboxylic acid 98%(HPLC) 5g $16 2026-06-04 Buy
AK Scientific J55012 5-Methyl-2-thiophenecarboxylic acid 95% 25g $27 2026-06-04 Buy
AK Scientific D104 5-Methyl-2-thiophenecarboxylic acid 98%(HPLC) 100g $99 2026-06-04 Buy
AK Scientific J55012 5-Methyl-2-thiophenecarboxylic acid 95% 100g $76 2026-06-04 Buy
AK Scientific D104 5-Methyl-2-thiophenecarboxylic acid 98%(HPLC) 25g $36 2026-06-04 Buy
Alichem 1918792 5-Methylthiophene-2-carboxylicacid 500g $439 2021-12-16 Buy
American Custom Chemicals Corporation CHM0020629 5-METHYL-2-THIOPHENECARBOXYLIC ACID 95.00% 2.5G $746.88 2021-12-16 Buy
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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)
pka :3.71±0.10(Predicted)
form :Liquid
color :Clear
BRN :113857
InChI :InChI=1S/C6H6O2S/c1-4-2-3-5(9-4)6(7)8/h2-3H,1H3,(H,7,8)
InChIKey :VCNGNQLPFHVODE-UHFFFAOYSA-N
SMILES :C1(C(O)=O)SC(C)=CC=1
CAS DataBase Reference :1918-79-2(CAS DataBase Reference)
NIST Chemistry Reference :5-Methyl-2-thiophenecarboxylic acid (keto form)(1918-79-2)

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Description

ChEBI: 5-Methyl-2-thiophenecarboxylic acid is a thiophenecarboxylic acid.

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Suppliers and manufacturers

Hebei Chuanghai Biotechnology Co,.LTD
5-Methyl-2-thiophenecarboxylic acid
$9.00
5-Methyl-2-thiophenecarboxylic acid CAS:1918-79-2
career henan chemical co
5-Methyl-2-thiophenecarboxylic acid
$1.00
5-Methyl-2-thiophenecarboxylic acid CAS:1918-79-2
Dideu Industries Group Limited
5-Methyl-2-thiophenecarboxylic acid
$1.10
5-Methyl-2-thiophenecarboxylic acid CAS:1918-79-2
CONIER CHEM AND PHARMA LIMITED
SIMAGCHEM CORP
Hefei Hangang Pharmaceutical Technology Co., Ltd.
Hefei TNJ Chemical Industry Co.,Ltd.
Shanghai UCHEM Inc.
Baoji Guokang Healthchem Co., Ltd.
Dayang Chem (Hangzhou) Co.,Ltd.