Thioindigo Red B structure

Thioindigo Red B

TL;DR: Thioindigo Red B (CAS 3844-31-3) 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.

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

Also Known As: Thioindigo, Isothioindigo, Thioindigo Red B, Thioindigo Red S, Durindone Red B

CAS: 3844-31-3
Molecular Formula C16H8O2S2
Molecular Weight 296.00 g/mol
LogP 4.1752
Topological Polar Surface Area 34.14 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 4
Rotatable Bonds 0
Exact Mass 295.99658
Heavy Atoms 20
Complexity 738.1291

Chemical Identifiers

CAS Number 3844-31-3
SMILES C1=CC=C2C(=C1)C(=O)/C(=C\3/C(=O)C4=CC=CC=C4S3)/S2

Product Overview

Thioindigo Red B (CAS 3844-31-3), with molecular formula C16H8O2S2 and molecular weight 296.00 g/mol. IUPAC: (2E)-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 Thioindigo Red B

XLogP
4.1752
TPSA (Topological Polar Surface Area)
34.14
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
4
Rotatable Bonds
0
Heavy Atoms
20
Complexity
738.1291
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 Thioindigo Red B

The XLogP value of 4.1752 indicates that Thioindigo Red B is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 34.14 Ų, Thioindigo Red B exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, Thioindigo Red B 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 Thioindigo Red B?

The CAS number of Thioindigo Red B is 3844-31-3.

What is the molecular formula of Thioindigo Red B?

The molecular formula of Thioindigo Red B is C16H8O2S2.

What is the molecular weight of Thioindigo Red B?

The molecular weight of Thioindigo Red B is 296.00 g/mol.

Where can I buy Thioindigo Red B?

You can request a quote for Thioindigo Red B directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Thioindigo Red B?

Yes, KEHONG BIO provides custom synthesis services for Thioindigo Red B and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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