Benzenesulfonic acid, 2-amino-5-(2-(4-sulfophenyl)diazenyl)-, sodium salt (1:?)
Basic information
- CAS
2706-28-7- Standard SMILES
Nc1ccc(N=Nc2ccc(S(=O)(=O)[O-])cc2)cc1S(=O)(=O)[O-].[Na+].[Na+]- InChIKey
FPVGTPBMTFTMRT-UHFFFAOYSA-L- Molecular formula
- C12H9N3Na2O6S2
- Average molar mass
- 401.3 g/mol
- Monoisotopic mass
- 400.97281557
Overview
Fast yellow is an organic sodium salt that is 4-aminoazobenzene-3,4'-disulfonic acid in which the protons of both of the sulfo groups have been replaced by sodium ions. It is used as a biological stain. It was formerly used as a food coloring agent (E105), but its use in food or drinks is now forbidden. It has a role as a histological dye. It contains a 4-aminoazobenzene-3,4'-disulfonate.
Names & identifiers
- Preferred name
- Benzenesulfonic acid, 2-amino-5-(2-(4-sulfophenyl)diazenyl)-, sodium salt (1:?)
- IUPAC
- disodium;2-amino-5-[(4-sulfonatophenyl)diazenyl]benzenesulfonate
- English name
- Benzenesulfonic acid, 2-amino-5-(2-(4-sulfophenyl)diazenyl)-, sodium salt (1:)
- Molecular formula
- C12H9N3Na2O6S2
- Molecular weight
- 401.3259
Names & synonyms
79873-36-2Benzenesulfonic acid, 2-amino-5-(2-(4-sulfophenyl)diazenyl)-, sodium salt (1:?)RefChem:1078712DTXSID701090457Fast Yellow AB2706-28-7Yellow acidAcid yellow 9C.I. Acid Yellow 9Yellow FastCilefa Yellow RFast Yellow S
Show more names
4-Aminoazobenzene-3,4-disulfonic acid, sodium saltBenzenesulfonic acid, 2-amino-5-((4-sulfophenyl)azo)-, sodium saltBenzenesulfonic acid, 2-amino-5-(2-(4-sulfophenyl)diazenyl)-, sodium salt (1:)
Fast Yellow YAcid Yellow ATLacquer Yellow TAmacid Yellow RGAcid Yellow GeigyFast Yellow ExtraGolden Yellow RuafKiton Yellow Extra
Database identifiers
- CAS
2706-28-7、79873-36-2- PubChem CID
- 75918
- DTXSID
DTXSID00889458- ChEBI
CHEBI:86126
Properties
Computed structural properties
- Topological polar surface area
- 182 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 9
- Rotatable bonds
- 2
- Heavy atoms
- 25
- Formal charge
- 0
- Complexity
- 602
Experimental & physicochemical properties
CosmeticsCosmetic colorant
Physicochemical properties
- EPA Substance Registry System
- 2 · Benzenesulfonic acid, 2-amino-5-[(4-sulfophenyl)azo]-, sodium salt (79873-36-2)
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319-H335
- Precautionary statements
- 261 · P261-P264-P271-P280-P302+P352-P305+P351+P338
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 26 · 26
- WGK Germany
- 1 · 1
- 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.
GHS classification
GHS Classification
Warning
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 38 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Safety data
- wgk
- 1
- tsca
- TSCA listed
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 26
- Hazard statements
- H315-H319-H335
- Precautionary statements
- P261-P264-P271-P280-P302+P352-P305+P351+P338
Chemistry & industry
Uses & manufacturing
Use ClassificationCosmetics -> Cosmetic colorant
General Manufacturing InformationBenzenesulfonic acid, 2-amino-5-[2-(4-sulfophenyl)diazenyl]-, sodium salt (1:?): INACTIVE
Additional notes
DefinitionChEBI: Fast yellow is an organic sodium salt that is 4-aminoazobenzene-3,4'-disulfonic acid in which the protons of both of the sulfo groups have been replaced by sodium ions. It is used as a biological stain. It was formerly used as a food coloring agent (E105), but its use in food or drinks is now forbidden. It has a role as a histological dye. It contains a 4-aminoazobenzene-3,4'-disulfonate.
Suppliers
Loading…
Open inquiries
Loading…
Related reactions
4 records
Compound notes
Loading…