Pigment Red 183 structure

Pigment Red 183

TL;DR: Pigment Red 183 (CAS 51920-11-7) is a chemical compound with molecular formula C25H18ClN5O4 and molecular weight 487.10 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

4-[(4-chloro-2-methoxyphenyl)diazenyl]-3-hydroxy-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)naphthalene-2-carboxamide

Also Known As: Pigment Red 183, C.I.Pigment Red 183, 4-((4-Chloro-2-methoxyphenyl)azo)-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide, 2-Naphthalenecarboxamide,4-[2-(4-chloro-2-methoxyphenyl)diazenyl]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-, 2-Naphthalenecarboxamide, 4-((4-chloro-2-methoxyphenyl)azo)-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-

CAS: 51920-11-7
Molecular Formula C25H18ClN5O4
Molecular Weight 487.10 g/mol
LogP 5.2
Topological Polar Surface Area 124.0 Ų
Hydrogen Bond Donors 4
Hydrogen Bond Acceptors 6
Rotatable Bonds 5
Exact Mass 487.10474
Heavy Atoms 35
Complexity 815.0

Chemical Identifiers

CAS Number 51920-11-7
SMILES COC1=C(C=CC(=C1)Cl)N=NC2=C(C(=CC3=CC=CC=C32)C(=O)NC4=CC5=C(C=C4)NC(=O)N5)O
InChIKey KNJBSTFQRPCFFP-UHFFFAOYSA-N

Product Overview

Pigment Red 183 (CAS 51920-11-7), with molecular formula C25H18ClN5O4 and molecular weight 487.10 g/mol. IUPAC: 4-[(4-chloro-2-methoxyphenyl)diazenyl]-3-hydroxy-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)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 183

XLogP
5.2
TPSA (Topological Polar Surface Area)
124.0
Hydrogen Bond Donors
4
Hydrogen Bond Acceptors
6
Rotatable Bonds
5
Heavy Atoms
35
Complexity
815.0
Exact Mass
487.10474
Monoisotopic Mass
487.10474
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 183

The XLogP value of 5.2 indicates that Pigment Red 183 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 124.0 Ų falls within the moderate polarity range, balancing permeability and solubility for Pigment Red 183. Following Lipinski's Rule of Five, Pigment Red 183 has 4 hydrogen bond donor(s) and 6 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 183?

The CAS number of Pigment Red 183 is 51920-11-7.

What is the molecular formula of Pigment Red 183?

The molecular formula of Pigment Red 183 is C25H18ClN5O4.

What is the molecular weight of Pigment Red 183?

The molecular weight of Pigment Red 183 is 487.10 g/mol.

Where can I buy Pigment Red 183?

You can request a quote for Pigment Red 183 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Pigment Red 183?

Yes, KEHONG BIO provides custom synthesis services for Pigment Red 183 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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