Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4,5-Dimethylthiophene-2-carboxylicacid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4,5-dimethylthiophene-2-carboxylic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Shanghai Amole Biotechnology Co., Ltd.
China
Product Name: 4,5-Dimethylthiophene-2-carboxylicacid
Price: ￥Inquiry/100mg ￥Inquiry/10g ￥Inquiry/1g ￥Inquiry/250mg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Xiyao Wang
Email: 3623107365@qq.com

40808-24-0

40808-24-0 structure

40808-24-0 structure

Name: 4,5-Dimethylthiophene-2-carboxylicacid
Chemical Name: 4,5-Dimethylthiophene-2-carboxylic acid
CAS Number: 40808-24-0
Molecular Formula: C₇H₈O₂S
Molecular Weight: 156.20200
Create Date: 2018-08-27 13:49:51
Modify Date: 2025-09-15 19:32:20

Name	4,5-Dimethylthiophene-2-carboxylic acid
Synonyms	MFCD00512748 4,5-dimethylthiophene-2-carboxylic acid

Density	1.259 g/cm3
Boiling Point	290.6ºC at 760 mmHg
Melting Point	206-211°C
Molecular Formula	C₇H₈O₂S
Molecular Weight	156.20200
Flash Point	129.5ºC
Exact Mass	156.02500
PSA	65.54000
LogP	2.06310
Storage condition	2-8°C

Hazard Codes	Xi: Irritant;
Risk Phrases	R36
Safety Phrases	S26
HS Code	2934999090

632-16-6 structure

632-16-6

~%

40808-24-0 structure

40808-24-0

Literature: Sice Journal of Organic Chemistry, 1954 , vol. 19, p. 70,72

5928-48-3 structure

5928-48-3

~%

40808-24-0 structure

40808-24-0

Literature: Lozac'h; Mollier Bulletin de la Societe Chimique de France, 1959 , p. 1389

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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