Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 5-Bromo-3-methyl-2-thiophenecarboxylic acid
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 5-Bromo-3-methyl-2-thiophenecarboxylic acid
Price: ￥7798.0/5g
Purity: 95.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 5-BROMO-3-METHYLTHIOPHENE-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

38239-45-1

38239-45-1 structure

38239-45-1 structure

Name: 5-Bromo-3-methyl-2-thiophenecarboxylic acid
Chemical Name: 5-bromo-3-methylthiophene-2-carboxylic acid
CAS Number: 38239-45-1
Molecular Formula: C₆H₅BrO₂S
Molecular Weight: 221.072
Create Date: 2018-05-23 08:00:00
Modify Date: 2025-09-11 10:46:10

Name	5-bromo-3-methylthiophene-2-carboxylic acid
Synonyms	5-Bromo-3-methyl-2-thiophenecarboxylic acid 5-Brom-3-methylthiophen-2-carbonsaeure 3-methyl-5-bromo-thiophene-2-carboxylic acid 5-bromo-3-methylthiophene-2-carboxylicacid 2-Thiophenecarboxylic acid, 5-bromo-3-methyl-

Density	1.8±0.1 g/cm3
Boiling Point	321.1±42.0 °C at 760 mmHg
Molecular Formula	C₆H₅BrO₂S
Molecular Weight	221.072
Flash Point	148.0±27.9 °C
Exact Mass	219.919357
PSA	65.54000
LogP	2.93
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.630

Hazard Codes	Xi
HS Code	2934999090

14282-78-1 structure

14282-78-1

~80%

38239-45-1 structure

38239-45-1

Literature: AGOURON PHARMACEUTICALS, INC. Patent: US2004/266796 A1, 2004 ; Location in patent: Page 13 ;

23806-24-8 structure

23806-24-8

~37%

38239-45-1 structure

38239-45-1

Literature: NOVARTIS AG; XENON PHARMACEUTICALS INC. Patent: WO2008/74835 A1, 2008 ; Location in patent: Page/Page column 78 ; WO 2008/074835 A1

38239-46-2 structure

38239-46-2

~%

38239-45-1 structure

38239-45-1

Literature: FibroGen, Inc. Patent: US2006/199836 A1, 2006 ; Location in patent: Page/Page column 22 ; US 20060199836 A1

Precursor 3
14282-78-1 23806-24-8 38239-46-2
DownStream 0

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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