Is CI 50420 safe in cosmetics?
CI 50420 has a safety rating of "MODERATE" in our database. EU status: restricted. US status: prohibited.
Moderate
Cosmetic Ingredient
CI 50420
Also known as: C.I. Acid Black 2, Acid Black 2, Calco nigrosine O 2P, CI Acid black 2, Lurazol Deep Blue EB (+3 more)
CI 50420 (CAS 8005-03-6) is a cosmetic cosmetic ingredient functioning as Colorant. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 8005-03-6 →
Auto-generated CPSR Part A draft with source citations
Function
Colorant
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
disodium;4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-phenyldiazenylnaphthalene-2,7-disulfonate
InChIKey
AOMZHDJXSYHPKS-UHFFFAOYSA-L
Regulatory Status
EU EU Status
restricted
US US Status
prohibited
US Notes
Not approved by FDA as a certified color additive for cosmetics in the US. EU-permitted with restriction that it not be used near mucous membranes. Prohibited in hair dye products.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for CI 50420.
Calculate MoS for your specific formulation with the MoS Calculator.
EU CosIng Annex Listing
European Commission CosIng database Annex references per Regulation (EC) No 1223/2009.
Annex II — Prohibited
Ref: 1359
(EC) 2013/344
Annex IV — Permitted Colorants
Product type: Black
Expanded Jurisdictional Detail
Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.
SA Saudi SFDA (II - Prohibited)
BRIN Brazil/India Cosmetics
Brazil: Prohibited
India: Prohibited (GNRAS)
India: Permitted Colorant
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Dye
Regulatory List Membership (2)
EU Banned in Cosmetics
EU CosIng Cosmetics Ingredient Database
Expert Verdict
Expert safety assessment and concern-level summary for CI 50420.
Regulatory Flags
not-for-mucous-membranes
not-for-hair-dye
not-fda-approved
aniline-derived
eu_banned_cosmetics
eu_cosing_listed
Known Synonyms
C.I. Acid Black 2
Acid Black 2
Calco nigrosine O 2P
CI Acid black 2
Lurazol Deep Blue EB
Nigrosine B
Nigrosine wl water soluble
Nigrosine WSB
Chemical Function
Dye
Regulatory Lists
inert_ingredient; non_food_use; Pesticides
banned; Europe; Personal care
Australian Status
AICIS status: listed
Frequently Asked Questions
Is CI 50420 allowed in the EU?
CI 50420 EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does CI 50420 do in cosmetics?
CI 50420 functions as: Colorant. It is classified as a cosmetic ingredient in our database. CAS number: 8005-03-6.
Is CI 50420 used outside cosmetics?
CI 50420 also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check CI 50420 compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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