CID 136405245
Basic information
- CAS
5858-39-9- Standard SMILES
COc1ccccc1N=Nc1cc(S(=O)(=O)O)c2ccccc2c1O.[Na]- InChIKey
MBKYXXPUYASPFL-UHFFFAOYSA-N- Molecular formula
- C17H14N2NaO5S
- Average molar mass
- 381.4 g/mol
- Monoisotopic mass
- 381.05211201
Names & identifiers
- Preferred name
- CID 136405245
- English name
- Acid red 4
- Molecular formula
- C17H14N2O5S.Na
- Molecular weight
- 381.36
Names & synonyms
orb1987331orb3025823AKOS040744724T20892Pink BCI 14710AZO EOSINAcid red 4Azo Eosine GC.I. Acid Red 4Acid Red 4 (C.I.)acidred4(c.i.14710)
Show more names
AZOEOSIN C.I. NO. 14710Metamine Fast Acid Red N
Database identifiers
- CAS
5858-39-9- PubChem CID
- 136405245
Properties
Computed structural properties
- Topological polar surface area
- 117 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 7
- Rotatable bonds
- 4
- Heavy atoms
- 26
- Formal charge
- 0
- Complexity
- 576
Physicochemical properties
- Melting point
- 210 °C · >210°C(dec.)
- storage temp.
- Amber Vial, Refrigerator, Under inert atmosphere
- solubility
- Methanol (Slightly)
- form
- Solid
- color
- Red
- EPA Substance Registry System
- 4 · C.I. Acid Red 4, monosodium salt (5858-39-9)
- WGK Germany
- 3 · 3
- TSCA
- TSCA listed
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Safety data
- wgk
- 3
- tsca
- TSCA listed
Chemistry & industry
Applications
UsesAcid Red 4 is an azo dye. The wavelength of maximum absorbance for Acid Red 4 is 508 nm[1].
Preparation methods
Preparationp-Anisidine diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.
Upstream & downstream products
Upstream raw materials
Additional notes
DefinitionChEBI: An organic sodium salt having 4-hydroxy-3-[(2-methoxyphenyl)diazenyl]naphthalene-1-sulfonate as the counterion.
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Related reactions
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Compound notes
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