DIRECT BLACK 166 structure

DIRECT BLACK 166

TL;DR: DIRECT BLACK 166 (CAS 72245-56-8) is a chemical compound with molecular formula C35H26N10Na2O8S2 and molecular weight 824.12 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

disodium;(6Z)-4-amino-3-[[4-[[4-[(2,4-diaminophenyl)diazenyl]phenyl]carbamoyl]phenyl]diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate

Also Known As: DIRECT BLACK 166, EINECS 276-529-8, 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[[[4-[(2,4-diaminophenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-5-hydroxy-6-(phenylazo)-, sodium salt, 2,7-Naphthalenedisulfonic acid, 4-amino-3-((4'-((2,4-diaminophenyl)azo)(4,4'-benzanilide)-4-yl)azo)-5-hydroxy-6-(phenylazo)-disodium salt, 2,7-Naphthalenedisulfonic acid, 4-amino-3-((4-(((4-((2,4-diaminophenyl)azo)phenyl)amino)carbonyl)phenyl)azo)-5-hydroxy-6-(phenylazo)-, disodium salt

CAS: 72245-56-8
Molecular Formula C35H26N10Na2O8S2
Molecular Weight 824.12 g/mol
LogP -0.0211
Topological Polar Surface Area 312.46 Ų
Hydrogen Bond Donors 5
Hydrogen Bond Acceptors 17
Rotatable Bonds 10
Exact Mass 824.1172
Heavy Atoms 57
Complexity 2713.1436

Chemical Identifiers

CAS Number 72245-56-8
SMILES C1=CC=C(C=C1)N/N=C/2\C(=CC3=CC(=C(C(=C3C2=O)N)N=NC4=CC=C(C=C4)C(=O)NC5=CC=C(C=C5)N=NC6=C(C=C(C=C6)N)N)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Product Overview

DIRECT BLACK 166 (CAS 72245-56-8), with molecular formula C35H26N10Na2O8S2 and molecular weight 824.12 g/mol. IUPAC: disodium;(6Z)-4-amino-3-[[4-[[4-[(2,4-diaminophenyl)diazenyl]phenyl]carbamoyl]phenyl]diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-disulfonate.

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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 DIRECT BLACK 166

XLogP
-0.0211
TPSA (Topological Polar Surface Area)
312.46
Hydrogen Bond Donors
5
Hydrogen Bond Acceptors
17
Rotatable Bonds
10
Heavy Atoms
57
Complexity
2713.1436
Exact Mass
824.1172
Monoisotopic Mass
824.1172
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 DIRECT BLACK 166

The XLogP value of -0.0211 indicates that DIRECT BLACK 166 is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 312.46 Ų indicates high polarity, suggesting DIRECT BLACK 166 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, DIRECT BLACK 166 has 5 hydrogen bond donor(s) and 17 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 DIRECT BLACK 166?

The CAS number of DIRECT BLACK 166 is 72245-56-8.

What is the molecular formula of DIRECT BLACK 166?

The molecular formula of DIRECT BLACK 166 is C35H26N10Na2O8S2.

What is the molecular weight of DIRECT BLACK 166?

The molecular weight of DIRECT BLACK 166 is 824.12 g/mol.

Where can I buy DIRECT BLACK 166?

You can request a quote for DIRECT BLACK 166 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for DIRECT BLACK 166?

Yes, KEHONG BIO provides custom synthesis services for DIRECT BLACK 166 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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