C.I. Direct Blue 2 structure

C.I. Direct Blue 2

TL;DR: C.I. Direct Blue 2 (CAS 2429-73-4) is a chemical compound with molecular formula C32H21N6Na3O11S3 and molecular weight 830.01 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

trisodium;5-amino-3-[[4-[4-[(7-amino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate

Also Known As: Chlorazol Black BH, C.I. Direct Blue 2, DIRECT BLUE 2, Direct Black BH, Melantherine BH

CAS: 2429-73-4
Molecular Formula C32H21N6Na3O11S3
Molecular Weight 830.01 g/mol
LogP -3.21
Topological Polar Surface Area 339.0 Ų
Hydrogen Bond Donors 4
Hydrogen Bond Acceptors 17
Rotatable Bonds 5
Exact Mass 830.0123
Heavy Atoms 55
Complexity 1590.0
Solubility 10 to 50 mg/mL at 64 °F (NTP, 1992)

Chemical Identifiers

CAS Number 2429-73-4
SMILES C1=CC(=CC=C1C2=CC=C(C=C2)N=NC3=C(C=C4C=CC(=CC4=C3O)N)S(=O)(=O)[O-])N=NC5=C(C6=C(C=C(C=C6C=C5S(=O)(=O)[O-])S(=O)(=O)[O-])N)O.[Na+].[Na+].[Na+]
InChIKey FKVXIGHJGBQFIH-UHFFFAOYSA-K

Product Overview

C.I. Direct Blue 2 (CAS 2429-73-4), with molecular formula C32H21N6Na3O11S3 and molecular weight 830.01 g/mol. IUPAC: trisodium;5-amino-3-[[4-[4-[(7-amino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]-4-hydroxynaphthalene-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 C.I. Direct Blue 2

XLogP
-3.21
TPSA (Topological Polar Surface Area)
339.0
Hydrogen Bond Donors
4
Hydrogen Bond Acceptors
17
Rotatable Bonds
5
Heavy Atoms
55
Complexity
1590.0
Exact Mass
830.0123
Monoisotopic Mass
830.0123
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 C.I. Direct Blue 2

The XLogP value of -3.21 indicates that C.I. Direct Blue 2 is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 339.0 Ų indicates high polarity, suggesting C.I. Direct Blue 2 may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, C.I. Direct Blue 2 has 4 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 C.I. Direct Blue 2?

The CAS number of C.I. Direct Blue 2 is 2429-73-4.

What is the molecular formula of C.I. Direct Blue 2?

The molecular formula of C.I. Direct Blue 2 is C32H21N6Na3O11S3.

What is the molecular weight of C.I. Direct Blue 2?

The molecular weight of C.I. Direct Blue 2 is 830.01 g/mol.

Where can I buy C.I. Direct Blue 2?

You can request a quote for C.I. Direct Blue 2 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for C.I. Direct Blue 2?

Yes, KEHONG BIO provides custom synthesis services for C.I. Direct Blue 2 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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