Basic Yellow 21 structure

Basic Yellow 21

TL;DR: Basic Yellow 21 (CAS 6359-50-8) is a chemical compound with molecular formula C22H25ClN2 and molecular weight 352.17 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

1,3,3-trimethyl-2-[2-(2-methyl-2,3-dihydroindol-1-ium-1-ylidene)ethylidene]indole chloride

Also Known As: Basic Yellow 21, Basic Yellow 21, C.I.Basic Yellow 21, Aizen Cathilon Red 5BH, C.I. Basic yellow 21

CAS: 6359-50-8
Molecular Formula C22H25ClN2
Molecular Weight 352.17 g/mol
LogP 1.66
Topological Polar Surface Area 6.3 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 2
Rotatable Bonds 1
Exact Mass 352.17062
Heavy Atoms 25
Complexity 544.0

Chemical Identifiers

CAS Number 6359-50-8
SMILES CC1CC2=CC=CC=C2[N+]1=CC=C3C(C4=CC=CC=C4N3C)(C)C.[Cl-]
InChIKey DSZCWNRVMXBILR-UHFFFAOYSA-M

Product Overview

Basic Yellow 21 (CAS 6359-50-8), with molecular formula C22H25ClN2 and molecular weight 352.17 g/mol. IUPAC: 1,3,3-trimethyl-2-[2-(2-methyl-2,3-dihydroindol-1-ium-1-ylidene)ethylidene]indole chloride.

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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 Basic Yellow 21

XLogP
1.66
TPSA (Topological Polar Surface Area)
6.3
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
2
Rotatable Bonds
1
Heavy Atoms
25
Complexity
544.0
Exact Mass
352.17062
Monoisotopic Mass
352.17062
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 Basic Yellow 21

The XLogP value of 1.66 suggests moderate lipophilicity, balancing water solubility and membrane permeability for Basic Yellow 21. With a topological polar surface area (TPSA) of 6.3 Ų, Basic Yellow 21 exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, Basic Yellow 21 has 0 hydrogen bond donor(s) and 2 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 Basic Yellow 21?

The CAS number of Basic Yellow 21 is 6359-50-8.

What is the molecular formula of Basic Yellow 21?

The molecular formula of Basic Yellow 21 is C22H25ClN2.

What is the molecular weight of Basic Yellow 21?

The molecular weight of Basic Yellow 21 is 352.17 g/mol.

Where can I buy Basic Yellow 21?

You can request a quote for Basic Yellow 21 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Basic Yellow 21?

Yes, KEHONG BIO provides custom synthesis services for Basic Yellow 21 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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