Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,5-Thiophenedicarboxylicacid, 3,4-diphenyl-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

19799-42-9

19799-42-9 structure

19799-42-9 structure

Name: 3,4-diphenylthiophene-2,5-dicarboxylic acid
Chemical Name: 3,4-diphenylthiophene-2,5-dicarboxylic acid
CAS Number: 19799-42-9
Molecular Formula: C₁₈H₁₂O₄S
Molecular Weight: 324.35000
Create Date: 2017-01-29 20:25:24
Modify Date: 2025-08-20 11:14:43

Name	3,4-diphenylthiophene-2,5-dicarboxylic acid
Synonyms	3,4-Diphenyl-thiophen-2,5-dicarbonsaeure 3,4-diphenyl-thiophene-2,5-dicarboxylic acid

Density	1.382g/cm3
Boiling Point	428.6ºC at 760 mmHg
Molecular Formula	C₁₈H₁₂O₄S
Molecular Weight	324.35000
Flash Point	213ºC
Exact Mass	324.04600
PSA	102.84000
LogP	4.47850
Vapour Pressure	4.14E-08mmHg at 25°C
Index of Refraction	1.67

HS Code	2934999090

925-47-3 structure

925-47-3

134-81-6 structure

134-81-6

~64%

19799-42-9 structure

19799-42-9

Literature: Henckens; Colladet; Fourier; Cleij; Lutsen; Gelan; Vanderzande Macromolecules, 2005 , vol. 38, # 1 p. 19 - 26

Precursor 2
925-47-3 134-81-6
DownStream 3
181218-41-7 16939-13-2 65818-64-6

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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