Pigment Red 51 structure

Pigment Red 51

TL;DR: Pigment Red 51 (CAS 5850-87-3) is a chemical compound with molecular formula C34H26BaN4O8S2 and molecular weight 820.02 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

barium(2+);bis(4-[(2-hydroxynaphthalen-1-yl)diazenyl]-2-methylbenzenesulfonate)

Also Known As: Pigment Red 51, Avival Red, Pigment Red 51:1, C.I. Pigment Red 51, C17H14N2O4S.1/2Ba

CAS: 5850-87-3
Molecular Formula C34H26BaN4O8S2
Molecular Weight 820.02 g/mol
LogP 7.97
Topological Polar Surface Area 221.0 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 12
Rotatable Bonds 4
Exact Mass 820.0245
Heavy Atoms 49
Complexity 546.0

Chemical Identifiers

CAS Number 5850-87-3
SMILES CC1=C(C=CC(=C1)N=NC2=C(C=CC3=CC=CC=C32)O)S(=O)(=O)[O-].CC1=C(C=CC(=C1)N=NC2=C(C=CC3=CC=CC=C32)O)S(=O)(=O)[O-].[Ba+2]
InChIKey DYYWTFWWAKPJGZ-UHFFFAOYSA-L

Product Overview

Pigment Red 51 (CAS 5850-87-3), with molecular formula C34H26BaN4O8S2 and molecular weight 820.02 g/mol. IUPAC: barium(2+);bis(4-[(2-hydroxynaphthalen-1-yl)diazenyl]-2-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 51

XLogP
7.97
TPSA (Topological Polar Surface Area)
221.0
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
12
Rotatable Bonds
4
Heavy Atoms
49
Complexity
546.0
Exact Mass
820.0245
Monoisotopic Mass
820.0245
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 51

The XLogP value of 7.97 indicates that Pigment Red 51 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 51 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Pigment Red 51 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 51?

The CAS number of Pigment Red 51 is 5850-87-3.

What is the molecular formula of Pigment Red 51?

The molecular formula of Pigment Red 51 is C34H26BaN4O8S2.

What is the molecular weight of Pigment Red 51?

The molecular weight of Pigment Red 51 is 820.02 g/mol.

Where can I buy Pigment Red 51?

You can request a quote for Pigment Red 51 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Pigment Red 51?

Yes, KEHONG BIO provides custom synthesis services for Pigment Red 51 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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