Ingredient Dictionary

DIRECT RED 80

Sirius red F3B is an organic sodium salt resulting from the formal condensation of Sirius red F3B (acid form) with six equivalents of sodium hydroxide.

Definition

Sirius red F3B is an organic sodium salt resulting from the formal condensation of Sirius red F3B (acid form) with six equivalents of sodium hydroxide. A polyazo dye used principally in staining methods for collagen and amyloid. It has a role as a fluorochrome and a histological dye. It contains a Sirius red F3B(6-).

Source: PubChem

US FDA substance register · UNII 1294D5G72N · registered name DIRECT RED 80 · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Dyes hairHAIR DYEING

Safety & regulatory references

Banned: Argentina · ASEAN · Brazil · China · European Union · South Korea · Taiwan · United Kingdom

Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · UK cosmetics regulations (OPSS)

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

Restriction II/1270

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Names & identifiers

DIRECT RED 80INCI2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-, hexasodium saltSynonym다이렉트적색80호Korean label name (MFDS standard)

CAS No.chemical registry number: 2610-10-8
EC No.EU chemical inventory number: 220-027-3
DTXSIDUS EPA chemical ID: DTXSID8044628
DTXCIDUS EPA compound ID: DTXCID601474155

IUPAC: Hexasodium 7,7'-[carbonylbis(azanediyl)]bis[4-hydroxy-3-({2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl}diazenyl)naphthalene-2-sulfonate]
Molecular formula: C45H26N10Na6O21S6
Molecular weight: 1373.05 g/mol

Measured properties

Appearance: solid
Odour: odourless
Flammability (solid, gas): not flammable
Vapour pressure: &amp, lt, 0 ㎜Hg (25℃)
Water solubility: &amp, gt, 370 g/ℓ (20℃, pH: &amp, 7)
Auto-ignition temperature: 400 ℃
Decomposition temperature: 304~441 ℃
Molecular weight: 1379.14

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: KOSHA safety data sheets (Korea)

What products actually use it for

What the 3 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Dye2
Pigment1

Source: US EPA CompTox dashboard