2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one structure

2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one

TL;DR: 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one (CAS 522-75-8) is a chemical compound with molecular formula C16H8O2S2 and molecular weight 296.00 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one

Also Known As: Thioindigo, Isothioindigo, Durindone Red B, Antinolo Red B, Helindon Red BB

CAS: 522-75-8
Molecular Formula C16H8O2S2
Molecular Weight 296.00 g/mol
LogP 4.1
Topological Polar Surface Area 84.7 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 4
Rotatable Bonds 0
Exact Mass 295.99658
Heavy Atoms 20
Complexity 453.0

Chemical Identifiers

CAS Number 522-75-8
SMILES C1=CC=C2C(=C1)C(=O)C(=C3C(=O)C4=CC=CC=C4S3)S2
InChIKey JOUDBUYBGJYFFP-UHFFFAOYSA-N

Patent-Derived Application Labels

Derived from 21 IPC patent classification(s) across the SureChEMBL global patent database.

Agrochemicals (26 patents) Analytical Reagents (43 patents) Biotechnology (37 patents) Catalysts (43 patents) Coatings & Adhesives (2050 patents) +16 more

Product Overview

2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one (CAS 522-75-8), with molecular formula C16H8O2S2 and molecular weight 296.00 g/mol. IUPAC: 2-(3-oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
View MSDS →

Chemical Property Profile of 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one

XLogP
4.1
TPSA (Topological Polar Surface Area)
84.7
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
4
Rotatable Bonds
0
Heavy Atoms
20
Complexity
453.0
Exact Mass
295.99658
Monoisotopic Mass
295.99658
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one

The XLogP value of 4.1 indicates that 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 84.7 Ų falls within the moderate polarity range, balancing permeability and solubility for 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one. Following Lipinski's Rule of Five, 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one has 0 hydrogen bond donor(s) and 4 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

Frequently Asked Questions

What is the CAS number of 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?

The CAS number of 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is 522-75-8.

What is the molecular formula of 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?

The molecular formula of 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is C16H8O2S2.

What is the molecular weight of 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?

The molecular weight of 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one is 296.00 g/mol.

Where can I buy 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?

You can request a quote for 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one?

Yes, KEHONG BIO provides custom synthesis services for 2-(3-Oxo-1-benzothiophen-2-ylidene)-1-benzothiophen-3-one and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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