Fast Red VR structure

Fast Red VR

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|EINECS 223-142-7|NCGC00013577-02|NCGC00096690-01|NCI60_004128|J3.123.059D|5-Hydroxy-6-(4-sulfo-1-naphthylazo)-1-naphthalenesulfonic acid|Disodium 5-hydroxy-6-((4-sulphonatonaphthyl)azo)naphthalenesulphonate|Disodium 5-hydroxy-6-[(4-sulphonatonaphthyl)azo]naphthalenesulphonate|(6E)-5-oxo-6-[(4-sulfonaphthalen-1-yl)hydrazinylidene]naphthalene-1-sulfonic acid|(6Z)-5-oxo-6-[(4-sulfonaphthalen-1-yl)hydrazinylidene]naphthalene-1-sulfonic acid|1-Naphthalenesulfonic acid, 5-hydroxy-6-((4-sulfo-1-naphthalenyl)azo)-, disodium salt|1-Naphthalenesulfonic acid, 5-hydroxy-6-[(4-sulfo-1-naphthalenyl)azo]-, disodium salt|5-Hydroxy-6-[2-(4-sulfo-1-naphthalenyl)diazenyl]-1-naphthalenesulfonic acid|5-hydroxy-6-[2-(4-sulfonaphthalen-1-yl)diazen-1-yl]naphthalene-1-sulfonic acid|5-oxo-6-[(4-sulfonaphthalen-1-yl)hydrazinylidene]naphthalene-1-sulfonic acid

CAS: 25317-25-3
Molecular Formula C20H14N2O7S2
Molecular Weight 458.02423 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
Monoisotopic 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 458.02423 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 →

Frequently Asked Questions

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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.
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