Pigment Red 53:3 structure

Pigment Red 53:3

TL;DR: Pigment Red 53:3 (CAS 73263-40-8) is a chemical compound with molecular formula C34H24Cl2N4O8S2Sr and molecular weight 837.95 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

strontium bis(5-chloro-2-[(2-hydroxynaphthalen-1-yl)diazenyl]-4-methylbenzenesulfonate)

Also Known As: Pigment Red 53:3, D.C. Red No. 9, C17H13ClN2O4S.1/2Sr, EC 277-335-6, C17-H13-Cl-N2-O4-S.1/2Sr

CAS: 73263-40-8
Molecular Formula C34H24Cl2N4O8S2Sr
Molecular Weight 837.95 g/mol
LogP 9.27264
Topological Polar Surface Area 221.0 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 12
Rotatable Bonds 4
Exact Mass 837.9469
Heavy Atoms 51
Complexity 581.0

Chemical Identifiers

CAS Number 73263-40-8
SMILES CC1=CC(=C(C=C1Cl)S(=O)(=O)[O-])N=NC2=C(C=CC3=CC=CC=C32)O.CC1=CC(=C(C=C1Cl)S(=O)(=O)[O-])N=NC2=C(C=CC3=CC=CC=C32)O.[Sr+2]
InChIKey GIWRCSUZRBTMDC-UHFFFAOYSA-L

Product Overview

Pigment Red 53:3 (CAS 73263-40-8), with molecular formula C34H24Cl2N4O8S2Sr and molecular weight 837.95 g/mol. IUPAC: strontium bis(5-chloro-2-[(2-hydroxynaphthalen-1-yl)diazenyl]-4-methylbenzenesulfonate).

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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 Pigment Red 53:3

XLogP
9.27264
TPSA (Topological Polar Surface Area)
221.0
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
12
Rotatable Bonds
4
Heavy Atoms
51
Complexity
581.0
Exact Mass
837.9469
Monoisotopic Mass
837.9469
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 Pigment Red 53:3

The XLogP value of 9.27264 indicates that Pigment Red 53:3 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 221.0 Ų indicates high polarity, suggesting Pigment Red 53:3 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Pigment Red 53:3 has 2 hydrogen bond donor(s) and 12 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.

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 Pigment Red 53:3?

The CAS number of Pigment Red 53:3 is 73263-40-8.

What is the molecular formula of Pigment Red 53:3?

The molecular formula of Pigment Red 53:3 is C34H24Cl2N4O8S2Sr.

What is the molecular weight of Pigment Red 53:3?

The molecular weight of Pigment Red 53:3 is 837.95 g/mol.

Where can I buy Pigment Red 53:3?

You can request a quote for Pigment Red 53:3 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Pigment Red 53:3?

Yes, KEHONG BIO provides custom synthesis services for Pigment Red 53:3 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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