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: 2,3,4,5-Thiophenetetracarboxylicacid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

4506-94-9

4506-94-9 structure

4506-94-9 structure

Name: 2,3,4,5-Thiophenetetracarboxylicacid
Chemical Name: thiophene-2,3,4,5-tetracarboxylic acid
CAS Number: 4506-94-9
Molecular Formula: C₈H₄O₈S
Molecular Weight: 260.17800
Create Date: 2016-09-17 12:42:35
Modify Date: 2025-08-26 01:43:50

Name	thiophene-2,3,4,5-tetracarboxylic acid
Synonyms	2,3,4,5-Thiophenetetracarboxylicacid Thiophentetracarbonsaeure thiophene-2.3.4.5-tetracarboxylic acid Thiophen-2,3,4,5-tetracarbonsaeure

Density	2.016g/cm3
Boiling Point	624ºC at 760 mmHg
Molecular Formula	C₈H₄O₈S
Molecular Weight	260.17800
Flash Point	331.2ºC
Exact Mass	259.96300
PSA	177.44000
LogP	0.54090
Index of Refraction	1.746

HS Code	2934999090

6579-15-3 structure

6579-15-3

~%

4506-94-9 structure

4506-94-9

Literature: Michael Chemische Berichte, 1895 , vol. 28, p. 1632 Full Text Show Details Hopff; v. d. Crone Chimia, 1959 , vol. 13, p. 107

Precursor 1
6579-15-3
DownStream 1
6007-85-8

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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