C.I. Acid Red 18, trisodium salt
Basic information
- CAS
2611-82-7- Standard SMILES
O=S(=O)([O-])c1cc(S(=O)(=O)[O-])c2c(N=Nc3ccc(S(=O)(=O)[O-])c4ccccc34)c(O)ccc2c1.[Na+].[Na+].[Na+]- InChIKey
SWGJCIMEBVHMTA-UHFFFAOYSA-K- Molecular formula
- C20H11N2Na3O10S3
- Average molar mass
- 604.5 g/mol
- Monoisotopic mass
- 603.92689092
Overview
See also: Ponceau 4R, cochineal red A (annotation moved to); Ponceau 4R (annotation moved to).
Names & identifiers
- Preferred name
- C.I. Acid Red 18, trisodium salt
- IUPAC
- trisodium;7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate
- English name
- Acid Red 18
- Molecular formula
- C20H15N2NaO10S3
- Molecular weight
- 562.51
Names & synonyms
C.I. Acid Red 18, Trisodium SaltDTXSID9021213RefChem:1080550DTXCID501507484Ponceau 4R2611-82-7New coccineAcid red 18C.I. Acid Red 18Food Red No. 102Victoria Scarlet 3RSX Purple
Show more names
CI 16255Food Redc.i.185E124LAKE PONCEAU 4RRed 18
CoccineBrilliant Scarlet 4RColacid Ponceau 4RFood Red 7Acilan Scarlet V3RAcid Brilliant Scarlet 3RCerticol Ponceau 4RSCochineal Red A
Database identifiers
- CAS
2611-82-7- PubChem CID
- 17466
- DTXSID
DTXSID9021213- UNII
- Z525CBK9PG
Properties
Computed structural properties
- Topological polar surface area
- 242 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 12
- Rotatable bonds
- 2
- Heavy atoms
- 38
- Formal charge
- 0
- Complexity
- 1,080
Experimental & physicochemical properties
CosmeticsHair dyeing; Cosmetic colorant
Animal DrugsPharmaceuticals -> UK Veterinary Medicines Directorate List
Physicochemical properties
- Melting point
- 300 oC · >300oC
- Density
- 1.772 · 1.772[at 20℃]
- vapor pressure
- 0 Pa · 0Pa at 25℃
- storage temp.
- Inert atmosphere,Room Temperature
- solubility
- DMSO (Slightly, Heated, Sonicated), Methanol (Slightly, Heated), Water (Slightly)
- Colour Index
- 16255 · 16255
- form
- Powder
- color
- Bordeaux to brown
- Water Solubility
- 305.21 g/L · 305.21g/L at 20℃
- λmax
- 350 nm · 350 nm (2nd)506 nm
- BRN
- 4122340 · 4122340
- Stability
- Hygroscopic
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Hazard information
EPA Safer ChemicalChemical: C.I. Acid Red 18, trisodium salt
Safety data
- wgk
- 2
- tsca
- TSCA listed
- rtecs
- QJ6530000
- hs_code
- 32041200
- Toxicity
- LD50 oral in rat: > 8gm/kg
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- safety_code
- 22-24/25
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H315-H319-H302-H335
- REACH Registrations
- Active
- Precautionary statements
- P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501
- Hazardous Substances Data
- 2611-82-7(Hazardous Substances Data)
Chemistry & industry
Uses & manufacturing
Use Classification
EPA Safer Chemical Functional Use Classes -> Colorants
Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
Cosmetics -> Hair dyeing; Cosmetic colorant
Applications
UsesFood Red No. 102 is an artificial coloring food additive. Dye. Dyes and metabolites, Environmental Testing
Preparation methods
Preparation4-Aminonaphthalene-1-sulfonic acid diazo, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling.
Upstream & downstream products
Upstream raw materials
Suppliers
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Related reactions
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Compound notes
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