Lot numbers can be found on the outside label of a product:
Benzo[b]thiophen-2-amine
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CAS No. 4521-30-6
- Cat. No. CS-W018765
- Purity≥95%
- MDL No.MFCD18072620
*For research and further manufacturing use only, not for direct human use.
![Benzo[b]thiophen-2-amine|CS-W018765](https://file.chemscene.com/productPIC/CS-W018765.gif)
Structure of 4521-30-6
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General Information
- CAS No. 4521-30-6
- Cat. No. CS-W018765
- Purity ≥95%
- MDL No. MFCD18072620
- Storage 4°C
- Shipping Room temperature in continental US; may vary elsewhere.
- Molecular Formula C₈H₇NS
- Molecular Weight None
- Synonym(s) 2-Aminobenzo[b]thiophene
- SMILES NC1=CC2=C(S1)C=CC=C2
Description
Benzo[b]thiophen-2-amine delivers a fused heterocyclic scaffold with a reactive amine at the 2-position, enabling direct incorporation into pharmaceutical intermediates and functional materials. The electron-rich aromatic system enhances conjugation in donor-acceptor architectures, while the thiophene core supports stability under standard synthetic conditions. This compound serves as a key building block for optoelectronic materials and bioactive molecules.
Application
Benzo[b]thiophen-2-amine serves as a versatile heterocyclic building block in medicinal chemistry and materials science. Its electron-rich aromatic core and amine functionality enable direct coupling reactions, including Suzuki-Miyaura and Buchwald-Hartwig protocols. The molecule exhibits good bench stability, facilitates straightforward purification, and functions as a key scaffold for kinase inhibitors and organic semiconductors.
Synthesis
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Route1
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In-stock
![tert-Butyl benzo[b]thiophen-2-ylcarbamate|CS-0041452](https://file.chemscene.com/productPIC/CS-0041452.gif)
89673-36-9 - ~88%
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In-stock
4521-30-6
References
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Schering Corporation Patent: US2007/117804 A1, 2007 ; Location in patent: Page/Page column 125 ; US 20070117804 A1
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Route2
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In-stock
![Benzo[b]thiophene|CS-D1193](https://file.chemscene.com/productPIC/CS-D1193.gif)
95-15-8 - ~%
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In-stock
4521-30-6
References
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Del Amo, Vicente; Dubbaka, Srinivas Ready; Krasovskiy, Arkady; Knochel, Paul Angewandte Chemie - International Edition, 2006 , vol. 45, # 46 p. 7838 - 7842
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Route3
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66768-64-7 - ~55%
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In-stock
4521-30-6
References
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Capperucci, Antonella; Degl'Innocenti, Alessandro; Funicello, Maria; Mauriello, Giacomo; Scafato, Patrizia; Spagnolo, Piero Journal of Organic Chemistry, 1995 , vol. 60, # 7 p. 2254 - 2256
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Safety Information
Download SDS|
GHS Pictogram :
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GHS No : GHS07
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Signal Word : Warning
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UN#: N/A
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Class : N/A
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Packing Group : N/A
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Hazard Statements : H302-H315-H319-H335
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Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501
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Quality Control
Computational Chemistry Data
- TPSA 26.02
- LogP 2.4835
- H_Acceptors 2
- H_Donors 1
- Rotatable_Bonds 0
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