Fast Red VR structure

Fast Red VR

TL;DR: Fast Red VR (CAS 25317-25-3) is a chemical compound with molecular formula C20H14N2O7S2 and molecular weight 458.02 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

5-hydroxy-6-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalene-1-sulfonic acid

Also Known As: Fast Red VR, Acid Chrome Blue 2B, NCIStruc1_000329, NCIStruc2_001098, C.I. Acid Red 12, disodium salt

CAS: 25317-25-3
Molecular Formula C20H14N2O7S2
Molecular Weight 458.02 g/mol
LogP 3.3
Topological Polar Surface Area 170.0 Ų
Hydrogen Bond Donors 3
Hydrogen Bond Acceptors 9
Rotatable Bonds 4
Exact Mass 458.02423
Heavy Atoms 31
Complexity 880.0

Chemical Identifiers

CAS Number 25317-25-3
SMILES C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)O)N=NC3=C(C4=C(C=C3)C(=CC=C4)S(=O)(=O)O)O
InChIKey MKQVCJWNUFUUQK-UHFFFAOYSA-N

Product Overview

Fast Red VR (CAS 25317-25-3), with molecular formula C20H14N2O7S2 and molecular weight 458.02 g/mol. IUPAC: 5-hydroxy-6-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalene-1-sulfonic acid.

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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 Fast Red VR

XLogP
3.3
TPSA (Topological Polar Surface Area)
170.0
Hydrogen Bond Donors
3
Hydrogen Bond Acceptors
9
Rotatable Bonds
4
Heavy Atoms
31
Complexity
880.0
Exact Mass
458.02423
Monoisotopic Mass
458.02423
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 Fast Red VR

The XLogP value of 3.3 indicates that Fast Red VR is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 170.0 Ų indicates high polarity, suggesting Fast Red VR may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Fast Red VR has 3 hydrogen bond donor(s) and 9 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

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 Fast Red VR?

The CAS number of Fast Red VR is 25317-25-3.

What is the molecular formula of Fast Red VR?

The molecular formula of Fast Red VR is C20H14N2O7S2.

What is the molecular weight of Fast Red VR?

The molecular weight of Fast Red VR is 458.02 g/mol.

Where can I buy Fast Red VR?

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

Does KEHONG BIO offer custom synthesis for Fast Red VR?

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

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