KST-1A9909 structure

KST-1A9909

TL;DR: KST-1A9909 (CAS 104153-59-5) is a chemical compound with molecular formula C21H31ClO2P2S and molecular weight 444.12 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

tert-butyl-[tert-butyl(phenyl)phosphoryl]oxy-methylsulfanyl-phenylphosphanium chloride

Also Known As: KST-1A9909, 1,3-di-tert-butyl-1-(methylsulfanyl)-1,3-diphenyldiphosphoxan-1-ium 3-oxide chloride, tert-Butyl-(tert-butyl(phenyl)phosphoryl)oxy(methylthio)phenylphosphonium chloride, Phosphinic acid, (1,1-dimethylethyl)phenyl)-, phosphorus complex, Phosphorus(1+), (1,1-dimethylethyl)((1,1-dimethylethyl) phenylphosphinato-O)(methanethiolato)phenyl-, chloride, (T-4)-

CAS: 104153-59-5
Molecular Formula C21H31ClO2P2S
Molecular Weight 444.12 g/mol
LogP 3.7437
Topological Polar Surface Area 51.6 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 4
Rotatable Bonds 7
Exact Mass 444.12085
Heavy Atoms 27
Complexity 497.0

Chemical Identifiers

CAS Number 104153-59-5
SMILES CC(C)(C)P(=O)(C1=CC=CC=C1)O[P+](C2=CC=CC=C2)(C(C)(C)C)SC.[Cl-]
InChIKey PUALHOMRZRWGMY-UHFFFAOYSA-M

Product Overview

KST-1A9909 (CAS 104153-59-5), with molecular formula C21H31ClO2P2S and molecular weight 444.12 g/mol. IUPAC: tert-butyl-[tert-butyl(phenyl)phosphoryl]oxy-methylsulfanyl-phenylphosphanium 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 KST-1A9909

XLogP
3.7437
TPSA (Topological Polar Surface Area)
51.6
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
4
Rotatable Bonds
7
Heavy Atoms
27
Complexity
497.0
Exact Mass
444.12085
Monoisotopic Mass
444.12085
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 KST-1A9909

The XLogP value of 3.7437 indicates that KST-1A9909 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 51.6 Ų, KST-1A9909 exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, KST-1A9909 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 KST-1A9909?

The CAS number of KST-1A9909 is 104153-59-5.

What is the molecular formula of KST-1A9909?

The molecular formula of KST-1A9909 is C21H31ClO2P2S.

What is the molecular weight of KST-1A9909?

The molecular weight of KST-1A9909 is 444.12 g/mol.

Where can I buy KST-1A9909?

You can request a quote for KST-1A9909 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for KST-1A9909?

Yes, KEHONG BIO provides custom synthesis services for KST-1A9909 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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