5-CHLOROBENZOTHIOPHENE
- CAS No.
- 20532-33-6
- Chemical Name:
- 5-CHLOROBENZOTHIOPHENE
- Synonyms
- 5-Chlorobenzo[b]thiophene;6-chlorobenzo[b]thiophene;5-Chlorothionaphthene;5-CHLOROBENZOTHIOPHENE;5-chloro-1-benzothiophene;5-chlorine Benzothiophene;5-Chlorobenzothiophene ,98%;Benzo[b]thiophene, 5-chloro-;5-Chlorobenzothiophene in isooctane;5-chlorine thiofuran-2-carboxylic acid
- CBNumber:
- CB4334138
- Molecular Formula:
- C8H5ClS
- Molecular Weight:
- 168.64
- MDL Number:
- MFCD00055623
- MOL File:
- 20532-33-6.mol
- MSDS File:
- SDS
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 | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-37/39 | |||||||||
| HS Code | 29339900 | |||||||||
| NFPA 704 |
|
5-CHLOROBENZOTHIOPHENE price More Price(56)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| AstaTech | 58062 | 5-CHLORO-BENZO[B]THIOPHENE 97% | 20532-33-6 | 5G | $37 | 2026-04-30 | Buy |
| AstaTech | 58062 | 5-CHLORO-BENZO[B]THIOPHENE 97% | 20532-33-6 | 25G | $169 | 2026-04-30 | Buy |
| AstaTech | 58062 | 5-CHLORO-BENZO[B]THIOPHENE 97% | 20532-33-6 | 100G | $524 | 2026-04-30 | Buy |
| Activate Scientific | AS31201 | 5-Chlorobenzothiophene 97% | 20532-33-6 | 1g | $24 | 2026-06-04 | Buy |
| Activate Scientific | AS31201 | 5-Chlorobenzothiophene 97% | 20532-33-6 | 5g | $39 | 2026-06-04 | Buy |
5-CHLOROBENZOTHIOPHENE Chemical Properties,Uses,Production
Chemical Properties
White solid
Uses
5-Chlorobenzo[b]thiophene is used as pharmaceutical intermediate.
Synthesis
50548-46-4
20532-33-6
To a 25 mL round-bottomed flask was added (4-chlorophenyl)(2,2-diethoxyethyl)thiane (500 mg, 1.92 mmol) and chlorobenzene (2 mL). The resulting mixture was added dropwise to a boiling solution of chlorobenzene (5 mL) in polyphosphoric acid (1 g) over 5 min. After completion of the reaction, the mixture was slowly poured into ice water (25 mL) and extracted three times with ethyl acetate (25 mL). The organic phases were combined, washed with saturated saline (50 mL) and dried over anhydrous sodium sulfate. The organic phases were concentrated under reduced pressure, and the resulting crude product was purified by silica gel column chromatography, using petroleum ether as eluent, to give 5-chlorobenzothiophene (290 mg, 90% yield) as an off-white solid.
References
[1] Patent: US2008/21026, 2008, A1. Location in patent: Page/Page column 17; 27
[2] Patent: CN103896967, 2016, B. Location in patent: Paragraph 0048; 0052-0054
[3] Journal of Organic Chemistry, 1995, vol. 60, # 7, p. 1936 - 1938
[4] Phosphorus, Sulfur and Silicon and the Related Elements, 1994, vol. 96, # 1-4, p. 441 - 444
[5] Bioorganic and medicinal chemistry, 2004, vol. 12, # 9, p. 2251 - 2273
5-CHLOROBENZOTHIOPHENE Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| JinYan Chemicals(ShangHai) Co.,Ltd. | 13817811078 | sales@jingyan-chemical.com | China | 9963 | 60 |
| Nanjing Habo Medical Technology Co., Ltd. | 13376080562 13376090521 | sales@habotech.com | China | 726 | 60 |
| Adamas Reagent, Ltd. | 400-6009262 15618770481 | yhx@titansci.com | China | 14098 | 59 |
| Shanghai Longsheng chemical Co.,Ltd. | 58099637 13585536065 | sales@shlschem.com | China | 9880 | 59 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Chembon Pharmaceutical Co., Ltd. | 028-84252981 18583719936 | sales@chembon.com.cn | China | 854 | 64 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
View Lastest Price from 5-CHLOROBENZOTHIOPHENE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-08-20 | 5-CHLOROBENZOTHIOPHENE
20532-33-6
|
$1.10 | 1g | 99.00% | 100 Tons | Dideu Industries Group Limited | |
![]() |
2019-07-10 | 5-CHLOROBENZOTHIOPHENE
20532-33-6
|
$1.00 | 1KG | 98% | 150KG | Career Henan Chemical Co |
-

- 5-CHLOROBENZOTHIOPHENE
20532-33-6
- $1.10
- 99.00%
- Dideu Industries Group Limited
-

- 5-CHLOROBENZOTHIOPHENE
20532-33-6
- $1.00
- 98%
- Career Henan Chemical Co
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