4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID
- CAS No.
- 23967-57-9
- Chemical Name:
- 4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID
- Synonyms
- FMX14276-A3;IFLAB-BB F2124-0584;Brexpiprazole Impurity 28;4-chloro-1-benzothiophene-2-carboxylate;4-chloro-2-benzothiophenecarboxylic acid;4-Chlorobenzothiophene-2-carboxylic acid;4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID;4-CHLORO-BENZO[B]THIOPHENE-2-CARBOXYLIC ACID;Benzo[b]thiophene-2-carboxylic acid, 4-chloro-;N-?[N-?(N-?glycylglycyl)?glycyl]?-?5-?L-?β-?asparticacid-?8-?L-?lysine-Vasopressin
- CBNumber:
- CB6780539
- Molecular Formula:
- C9H5ClO2S
- Molecular Weight:
- 212.65
- MDL Number:
- MFCD06655155
- MOL File:
- 23967-57-9.mol
| Melting point | 220-223 |
|---|---|
| Boiling point | 408.6±25.0 °C(Predicted) |
| Density | 1.546±0.06 g/cm3(Predicted) |
| storage temp. | 2-8°C(protect from light) |
| pka | 3.28±0.30(Predicted) |
| form | Crystalline Powder |
| color | White to off-white |
| InChI | InChI=1S/C9H5ClO2S/c10-6-2-1-3-7-5(6)4-8(13-7)9(11)12/h1-4H,(H,11,12) |
| InChIKey | IPAXPERGAMNMIJ-UHFFFAOYSA-N |
| SMILES | C12=CC=CC(Cl)=C1C=C(C(O)=O)S2 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 22-36 | |||||||||
| Safety Statements | 26 | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 2934999090 | |||||||||
| NFPA 704 |
|
4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID price More Price(40)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | C3430 | 4-Chlorobenzo[b]thiophene-2-carboxylic Acid >97.0%(GC) | 23967-57-9 | 1g | $88 | 2025-07-31 | Buy |
| TCI Chemical | C3430 | 4-Chlorobenzo[b]thiophene-2-carboxylic Acid >97.0%(GC) | 23967-57-9 | 5g | $352 | 2025-07-31 | Buy |
| TRC | C364160 | 4-Chlorobenzo[b]thiophene-2-carboxylic Acid | 23967-57-9 | 5g | $195 | 2021-12-16 | Buy |
| Matrix Scientific | 047319 | 4-Chloro-1-benzothiophene-2-carboxylic acid >95% | 23967-57-9 | 1g | $228 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FC135429 | 4-Chloro-1-benzothiophene-2-carboxylic acid | 23967-57-9 | 2g | $235 | 2021-12-16 | Buy |
4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID Chemical Properties,Uses,Production
Uses
4-Chlorobenzo[b]thiophene-2-carboxylic Acid is an intermediate used to prepare histone deacetylase inhibitors.
Synthesis
![4-CHLORO-BENZO[B]THIOPHENE-2-CARBOXYLIC ACID METHYL ESTER](/CAS/GIF/35212-95-4.gif)
35212-95-4
23967-57-9
General procedure for the synthesis of 4-chlorobenzo[b]thiophene-2-carboxylic acid from methyl 4-chlorobenzo[b]thiophene-2-carboxylate: Methyl 4-chlorobenzo[b]thiophene-2-carboxylate (1.0 g, 4.44 mmol) and LiOH-H2O (0.56 g, 13.3 mmol) were mixed in a solvent mixture of methanol (30 mL) and water (10 mL), and the reaction was carried out at room temperature. The reaction was carried out overnight. After completion of the reaction, the reaction mixture was concentrated under vacuum and the residue was diluted with ice water (20 mL). The aqueous phase was acidified with dilute hydrochloric acid solution to pH=1. The acidified mixture was extracted with ethyl acetate (15 mL x 3). The organic layers were combined, washed with saturated brine, dried over anhydrous Na2SO4, and the solvent was evaporated under vacuum to give 4-chlorobenzo[b]thiophene-2-carboxylic acid as a white solid (0.94 g, 100% yield).1H NMR (400 MHz, CDCl3) δ 8.10-8.02 (m, 2H), 7.61-7.51 (m, 2H).
References
[1] Patent: WO2012/155352, 2012, A1. Location in patent: Page/Page column 50
[2] Patent: WO2012/155676, 2012, A1. Location in patent: Page/Page column 54
[3] Patent: WO2012/158396, 2012, A1. Location in patent: Page/Page column 54
[4] Patent: WO2016/191366, 2016, A1. Location in patent: Page/Page column 35
[5] Journal of Medicinal Chemistry, 2007, vol. 50, # 20, p. 4793 - 4807
4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14332 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29801 | 58 |
| Fuxin Pharmaceutical | +86-021-021-50872116 +8613122107989 | contact@fuxinpharm.com | China | 10035 | 58 |
| Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 | joe@yuhengpharm.com | CHINA | 21142 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 12273 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Win-Win chemical CO., Limited | +86-0086-577-64498589 +86-15355981851 | sales@win-winchemical.com | China | 14360 | 58 |
| Coresyn Pharmatech Co., Ltd. | +86-571-86626709 +86-18157142896 | cbc@coresyn.com | China | 9984 | 58 |
| Changzhou AniKare Pharmatech Co., Ltd. | +86-0519-8359-8696 +8618018249389 | sales@anikare.com | China | 9937 | 58 |
View Lastest Price from 4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2019-12-26 | 4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID
23967-57-9
|
US $6.60 / KG | 1KG | 97%-99% | 1kg-1000kg | Career Henan Chemical Co |
-
- 4-CHLORO-1-BENZOTHIOPHENE-2-CARBOXYLIC ACID
23967-57-9
- US $6.60 / KG
- 97%-99%
- Career Henan Chemical Co
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