Ingredient Dictionary

CI 73900

Quinacridone is an organonitrogen heterocyclic compound and an organic heterotetracyclic compound.

Definition

Quinacridone is an organonitrogen heterocyclic compound and an organic heterotetracyclic compound.

Source: PubChem

US FDA substance register · UNII 11P487375P · registered name CINQUASIA RED · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

CI 73900 is classed chemically as a quinacridone colour. It conforms to the formula:

Cosmetic roles

Adds colourCOLORANTDyes hairHAIR DYEING

Safety & regulatory references

Banned: Argentina · ASEAN · Brazil · European Union · United Kingdom
Restricted or banned: Argentina · ASEAN · Brazil · China · European Union · Taiwan
Allowed colourant: ASEAN · Taiwan

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

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

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex II (prohibited substances), entry 1366

Source: EU prohibited substances (Annex II)

EU Cosmetics Regulation, Annex IV (allowed colourants), entry 102 · maximum concentration Rinse-off products

Source: EU allowed colourants (Annex IV)

Restriction II/1366

Source: EU CosIng ingredient list

Restriction IV/102 · Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

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

Names & identifiers

CI 73900INCI피그먼트자색19호Korean label name (MFDS standard)Quino[2,3-b]acridine-7,14-dione, 5,12-dihydro-SynonymPIGMENT VIOLET 19Synonym

CAS No.chemical registry number: 1047-16-1
EC No.EU chemical inventory number: 213-879-2
DTXSIDUS EPA chemical ID: DTXSID5027354
DTXCIDUS EPA compound ID: DTXCID407354

IUPAC: 5,12-Dihydroquinolino[2,3-b]acridine-7,14-dione
Molecular formula: C20H12N2O2
Molecular weight: 312.328 g/mol

Measured properties

Appearance: Liquid, Other Solid, Dry Powder, CBI · Red to violet solid, Bluish or yellowish tint depending of form, [HSDB] Red odorless powder, [MSDSonline]
Melting point: 390 °C
Solubility: Insoluble in water · Insoluble in organic solvents and dispersion media.
Density: 1.5
Stability: Stable up to 165 °C
pH: 7-8
Melting/freezing point: 390 ℃
Relative density: 1.5
n-Octanol/water partition coefficient (Kow): 1.9 (est.)
Decomposition temperature: 350 ℃
Molecular weight: 312.18

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: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 29 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.

Pigment21
Dye6
Processing aids not otherwise specified2

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

6 skin studies and 3 eye studies are on record.

Classed as low11

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 9 studies

Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to EU Method B.6 (Skin Sensitisation) according to OECD Guideline 406 (Skin Sensitisation)
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) according to EU Method B.6 (Skin Sensitisation)
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: EPA-TSCA 40 CFR 798 according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion) according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: FDA guideline (Federal Register 38, No. 187, 27.9.1973) according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion) according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: EPA-TSCA 40 CFR 798 according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: FDA guideline (Federal Register 38, No. 187, 27.9.1973) according to