Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic 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: 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid
Price: ￥Inquiry/100mg ￥Inquiry/1g ￥Inquiry/250mg ￥Inquiry/5g
Purity: 95.0%
Stocking Period: Inquiry
Contact: Xiyao Wang
Email: 3623107365@qq.com

175202-55-8

175202-55-8 structure

175202-55-8 structure

Name: 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid
Chemical Name: 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid
CAS Number: 175202-55-8
Molecular Formula: C₁₀H₈O₄S₂
Molecular Weight: 256.29800
Create Date: 2018-12-18 09:58:58
Modify Date: 2025-08-24 22:57:27

Name	3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid
Synonyms	3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid 3,4-dimethylthiopheno[2,3-b]thiophene-2,5-dicarboxylic acid MFCD00067989

Density	1.6g/cm3
Boiling Point	538ºC at 760mmHg
Melting Point	>360°C
Molecular Formula	C₁₀H₈O₄S₂
Molecular Weight	256.29800
Flash Point	279.2ºC
Exact Mass	255.98600
PSA	131.08000
LogP	2.97600
Vapour Pressure	2.08E-12mmHg at 25°C
Index of Refraction	1.736

Risk Phrases	R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Phrases	S26-S36/37/39
HS Code	2934999090

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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