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4-(2-THIENYL)BUTYRIC ACID

Product Name
4-(2-THIENYL)BUTYRIC ACID
CAS No.
4653-11-6
Chemical Name
4-(2-THIENYL)BUTYRIC ACID
Synonyms
2-THIOPHENEBUTYRIC ACID;4-(2-thienyl)butyricaci;2-Thiophenebutanoic acid;4-(2-THIENYL)BUTYRIC ACID;Thiophene-2-butanoic acid;2-(2-THIENYL)BUTYRIC ACID;4-(2-Thienyl)butanoic acid;4-Thiophen-2-yl-butyric acid;4-(2-Thienyl)butyricacid,98+%;4-(2-Thienyl)butyric acid, GC 97%
CBNumber
CB0401962
Molecular Formula
C8H10O2S
Formula Weight
170.23
MOL File
4653-11-6.mol
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4-(2-THIENYL)BUTYRIC ACID Property

Melting point:
13.5-15 °C
Boiling point:
122°C 0,3mm
Density 
1.169 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.532(lit.)
Flash point:
>230 °F
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
pka
4.71±0.10(Predicted)
form 
Liquid
Specific Gravity
1.1690
color 
Clear slightly brown
BRN 
127982
CAS DataBase Reference
4653-11-6(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-37/39
WGK Germany 
3
HazardClass 
IRRITANT
HS Code 
29309099
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
T27804
Product name
4-(2-Thienyl)butyric acid
Purity
98%
Packaging
10g
Price
$192
Updated
2025/07/31
Sigma-Aldrich
Product number
T27804
Product name
4-(2-Thienyl)butyric acid
Purity
98%
Packaging
2.5g
Price
$74.3
Updated
2023/06/20
TCI Chemical
Product number
T4178
Product name
4-(Thiophen-2-yl)butanoic Acid
Purity
min. 95.0 %
Packaging
1G
Price
$45
Updated
2025/07/31
TCI Chemical
Product number
T4178
Product name
4-(Thiophen-2-yl)butanoic Acid
Purity
min. 95.0 %
Packaging
5G
Price
$135
Updated
2025/07/31
TRC
Product number
T344130
Product name
2-ThiophenebutanoicAcid
Packaging
25g
Price
$265
Updated
2021/12/16
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4-(2-THIENYL)BUTYRIC ACID Chemical Properties,Usage,Production

Chemical Properties

CLEAR SLIGHTLY BROWNISH LIQUID

Uses

2-Thiophenebutanoic Acid is used to prepare cell-penetrating peptide α-keto-amide calpain inhibitors as potential treatment for muscular dystrophy. it is also used to prepare isochroman carboxylic acid derivatives as potential anti-diabetic agents.

Definition

ChEBI: A monocarboxylic acid that is butyric acid bearing a 2-thienyl group at position 4.

Synthesis

4653-08-1

4653-11-6

The general procedure for the synthesis of 4-(2-thienyl)butyric acid from 3-(2-thiophenecarbonyl)propionic acid was as follows: 4-oxo-4-(thiophen-2-yl)butyric acid (2.3 g, 12.48 mmol) was dissolved in ethylene glycol (30 mL), and hydrazine hydrate (99%, 2.2 mL, 45.9 mmol) and potassium hydroxide pellets (2.37 g, 42.4 mmol). The reaction mixture was heated to 180 °C and maintained for 10 hours. After completion of the reaction, it was cooled to room temperature and the reaction mixture was diluted with water. The aqueous layer was washed with ether, acidified with 6N hydrochloric acid and extracted with ether. The organic layers were combined, dried with anhydrous sodium sulfate and concentrated under reduced pressure. The crude product was purified by column chromatography (silica gel 60-120 mesh, eluent 2% dichloromethane solution in methanol) to give 4-(thiophen-2-yl)butanoic acid (1.8 g, 85% yield). The product was confirmed by 1H NMR (300 MHz, DMSO-d6) and mass spectrometry (ESI): 1H NMR δ 12.06 (s, 1H), 7.31-7.29 (m, 1H), 6.94-6.91 (m, 1H), 6.84-6.82 (m, 1H), 2.82-2.77 (t, J=7.7 Hz, 2H), 2.27- 2.22 (t, J=7.3Hz, 2H), 1.86-1.76 (m, 2H); MS (ESI) m/z: [M+H]+ Calculated value 170.04, measured value 170.8.

References

[1] European Journal of Medicinal Chemistry, 1998, vol. 33, # 11, p. 867 - 877
[2] Patent: WO2011/88187, 2011, A1. Location in patent: Page/Page column 60-61
[3] Patent: WO2010/76188, 2010, A1. Location in patent: Page/Page column 17-19
[4] Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1980, p. 1185 - 1193
[5] Archiv der Pharmazie, 1988, vol. 321, # 10, p. 735 - 738

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4-(2-THIENYL)BUTYRIC ACID Suppliers

Kanto Chemical Co., Inc.
Tel
--
Fax
--
Email
reag-info@gms.kanto.co.jp
Country
Japan
ProdList
6756
Advantage
74
Wako Pure Chemical Industries, Ltd.
Tel
--
Fax
--
Email
labchem-tec@wako-chem.co.jp
Country
Japan
ProdList
6819
Advantage
80
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View Lastest Price from 4-(2-THIENYL)BUTYRIC ACID manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
4-(2-Thienyl)butyric acid 4653-11-6
Price
US $1.00-1.50/KG
Min. Order
1KG
Purity
99%
Supply Ability
100000KG
Release date
2024-07-31
Zhuozhou Wenxi import and Export Co., Ltd
Product
4-(2-THIENYL)BUTYRIC ACID 4653-11-6
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11