Pigment Red 7 structure

Pigment Red 7

TL;DR: Pigment Red 7 (CAS 6471-51-8) is a chemical compound with molecular formula C25H19Cl2N3O2 and molecular weight 463.09 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

N-(4-chloro-2-methylphenyl)-4-[(4-chloro-2-methylphenyl)diazenyl]-3-hydroxynaphthalene-2-carboxamide

Also Known As: Pigment red 7, C.I. Pigment Red 7, PERMANENT CARMINE, PERMANENT CRIMSON, C.I.Pigment Red 7

CAS: 6471-51-8
Molecular Formula C25H19Cl2N3O2
Molecular Weight 463.09 g/mol
LogP 8.0
Topological Polar Surface Area 74.1 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 4
Rotatable Bonds 4
Exact Mass 463.08542
Heavy Atoms 32
Complexity 678.0

Chemical Identifiers

CAS Number 6471-51-8
SMILES CC1=C(C=CC(=C1)Cl)NC(=O)C2=CC3=CC=CC=C3C(=C2O)N=NC4=C(C=C(C=C4)Cl)C
InChIKey KWORKYDIARWARF-UHFFFAOYSA-N

Product Overview

Pigment Red 7 (CAS 6471-51-8), with molecular formula C25H19Cl2N3O2 and molecular weight 463.09 g/mol. IUPAC: N-(4-chloro-2-methylphenyl)-4-[(4-chloro-2-methylphenyl)diazenyl]-3-hydroxynaphthalene-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 7

XLogP
8.0
TPSA (Topological Polar Surface Area)
74.1
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
4
Rotatable Bonds
4
Heavy Atoms
32
Complexity
678.0
Exact Mass
463.08542
Monoisotopic Mass
463.08542
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 7

The XLogP value of 8.0 indicates that Pigment Red 7 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 74.1 Ų falls within the moderate polarity range, balancing permeability and solubility for Pigment Red 7. Following Lipinski's Rule of Five, Pigment Red 7 has 2 hydrogen bond donor(s) and 4 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 7?

The CAS number of Pigment Red 7 is 6471-51-8.

What is the molecular formula of Pigment Red 7?

The molecular formula of Pigment Red 7 is C25H19Cl2N3O2.

What is the molecular weight of Pigment Red 7?

The molecular weight of Pigment Red 7 is 463.09 g/mol.

Where can I buy Pigment Red 7?

You can request a quote for Pigment Red 7 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Pigment Red 7?

Yes, KEHONG BIO provides custom synthesis services for Pigment Red 7 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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