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-Tetramethylthiophene
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

14503-51-6

14503-51-6 structure

14503-51-6 structure

Name: Tetramethylthiophene
Chemical Name: 2,3,4,5-Tetramethylthiophene
CAS Number: 14503-51-6
Molecular Formula: C₈H₁₂S
Molecular Weight: 140.246
Create Date: 2018-03-21 08:00:00
Modify Date: 2025-08-25 07:49:27

Name	2,3,4,5-Tetramethylthiophene
Synonyms	Tetramethyl-thiophen Tetramethylthiopen 2,3,3',4,5',6-HEXACB UNLABELED Thiophene,2,3,4,5-tetramethyl Thiophene, 2,3,4,5-tetramethyl- 2,3,4,5-Tetramethylthiophene Tetramethylthiophene tetramethyl-thiophene Thiophene,tetramethyl Thiophene, tetramethyl-

Density	1.0±0.1 g/cm3
Boiling Point	198.7±9.0 °C at 760 mmHg
Molecular Formula	C₈H₁₂S
Molecular Weight	140.246
Flash Point	51.4±4.9 °C
Exact Mass	140.065964
PSA	28.24000
LogP	3.74
Vapour Pressure	0.5±0.4 mmHg at 25°C
Index of Refraction	1.522

HS Code	2934999090

Precursor 0
DownStream 5
1217-12-5 78519-02-5 135000-63-4 138369-90-1
138369-92-3

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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