日落黄

Description

sunset yellow fcf is identified by CAS 2783-94-0, molecular formula C16H10Na2O7S2N2 and molecular weight 451.97 g/mol. UNII H77VEI93A8; ChEBI 82538; InChIKey OIQPTROHQCGFEF-QIKYXUGXSA-L.

Identification

CAS Registry Number	2783-94-0
PubChem CID	17730
Molecular formula	C16H10Na2O7S2N2
Molecular weight	451.97 g/mol
IUPAC name	disodium;6-hydroxy-5-[(4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate
InChIKey	OIQPTROHQCGFEF-QIKYXUGXSA-L
UNII (FDA)	H77VEI93A8
ChEBI ID	CHEBI:82538

Computed Descriptors

Molecular Weight	452.4
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	9
Rotatable Bond Count	2
Exact Mass	451.97248157
Monoisotopic Mass	451.97248157
Topological Polar Surface Area	176
Heavy Atom Count	29
Formal Charge	0
Complexity	722

Physical description & handling notes

• Dry Powder; Liquid
• Red-orange crystals or red powder; [CAMEO]
• Reddish-yellow to reddish-brown solid; [CAMEO] Reddish-yellow odorless powder; [MSDSonline]

Regulatory Status

Regulatory & Food Contact	CIR / INCI: Cosmetic colorant; Hair dyeing

Documented Uses

• A colorant commonly used in foods; [Ullmann]
• Used as dye (leather, silk, paper beater, cellulose, cotton, and wool), and biological stain; [HSDB] A stilbene dye; [Ullmann]
• Pulp and Paper Processing [Category: Industry]
• Leather Tanning and Processing [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• LEATHER DYE, SILK, PAPER BEATER DYE, DYEING CELLULOSE, WOOL

Synonyms

FD&C Yellow 6; DTXSID6021456; DTXCID101131536; RefChem:1085314; Sunset Yellow FCF; 2783-94-0; Food yellow 3; Sunset yellow; C.I. Food Yellow 3; Orange Yellow S; FD&C Yellow No. 6; Gelborange-S; FD&C yellow no.6; C.I. Direct Yellow 11; FD & C Yellow No. 6; Food Yellow No.5

Frequently Asked Questions

What are the CAS number and molecular formula of sunset yellow fcf?

CAS 2783-94-0; molecular formula C16H10Na2O7S2N2; molecular weight 451.97 g/mol.

What other names is sunset yellow fcf known by?

FD&C Yellow 6, DTXSID6021456, DTXCID101131536, RefChem:1085314, Sunset Yellow FCF, 2783-94-0.

What is the regulatory status of sunset yellow fcf?

Documented regulatory listings: CIR / INCI: Cosmetic colorant; Hair dyeing.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.