Pigment Red 31 structure

Pigment Red 31

TL;DR: Pigment Red 31 (CAS 6448-96-0) is a chemical compound with molecular formula C31H23N5O6 and molecular weight 561.16 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

3-hydroxy-4-[[2-methoxy-5-(phenylcarbamoyl)phenyl]diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide

Also Known As: Pigment Red 31, C.I. Pigment Red 31, PigmentRed31, Polymo Rose FBL, C.I.Pigment Red 31

CAS: 6448-96-0
Molecular Formula C31H23N5O6
Molecular Weight 561.16 g/mol
LogP 6.6
Topological Polar Surface Area 158.0 Ų
Hydrogen Bond Donors 3
Hydrogen Bond Acceptors 8
Rotatable Bonds 7
Exact Mass 561.16486
Heavy Atoms 42
Complexity 968.0

Chemical Identifiers

CAS Number 6448-96-0
SMILES COC1=C(C=C(C=C1)C(=O)NC2=CC=CC=C2)N=NC3=C(C(=CC4=CC=CC=C43)C(=O)NC5=CC(=CC=C5)[N+](=O)[O-])O
InChIKey GLZGTQYOWXFUNZ-UHFFFAOYSA-N

Product Overview

Pigment Red 31 (CAS 6448-96-0), with molecular formula C31H23N5O6 and molecular weight 561.16 g/mol. IUPAC: 3-hydroxy-4-[[2-methoxy-5-(phenylcarbamoyl)phenyl]diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide.

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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 31

XLogP
6.6
TPSA (Topological Polar Surface Area)
158.0
Hydrogen Bond Donors
3
Hydrogen Bond Acceptors
8
Rotatable Bonds
7
Heavy Atoms
42
Complexity
968.0
Exact Mass
561.16486
Monoisotopic Mass
561.16486
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 31

The XLogP value of 6.6 indicates that Pigment Red 31 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 158.0 Ų indicates high polarity, suggesting Pigment Red 31 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Pigment Red 31 has 3 hydrogen bond donor(s) and 8 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 31?

The CAS number of Pigment Red 31 is 6448-96-0.

What is the molecular formula of Pigment Red 31?

The molecular formula of Pigment Red 31 is C31H23N5O6.

What is the molecular weight of Pigment Red 31?

The molecular weight of Pigment Red 31 is 561.16 g/mol.

Where can I buy Pigment Red 31?

You can request a quote for Pigment Red 31 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Pigment Red 31?

Yes, KEHONG BIO provides custom synthesis services for Pigment Red 31 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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