Excellent Colorant

CI 77492 (Yellow Iron Oxide)

Also known as: EINECS 257-098-5, Ferric oxide, yellow

INCI: CI 77492

CI 77492 (Yellow Iron Oxide) (CAS 51274-00-1) is a cosmetic colorant functioning as Colorant. EU Regulation 1223/2009 status: permitted. 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 51274-00-1 →

Auto-generated CPSR Part A draft with source citations
Function
Colorant
Safety Rating
EXCELLENT

Chemistry & Identifiers

Formula
FeH3O3
MW
106.87 g/mol
EC Number
257-098-5
PubChem CID
23320441
IUPAC Name
iron(3+);oxygen(2-);hydroxide;hydrate
InChIKey
LDHBWEYLDHLIBQ-UHFFFAOYSA-M

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Listed under 21 CFR 73.2250. Exempt from batch certification. Approved for use in externally applied cosmetics including the eye area. FDA requires synthetic-grade (not mined) iron oxides to avoid heavy metal contamination. Heavy metal impurity limits apply.

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 77492 (Yellow Iron Oxide).

Calculate MoS for your specific formulation with the MoS Calculator.

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
10,000 - 100,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No

EU CosIng Annex Listing

European Commission CosIng database Annex references per Regulation (EC) No 1223/2009.

Annex IV — Permitted Colorants
Product type: Yellow

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 (IV - Colorants)
BRIN Brazil/India Cosmetics
India: Permitted Colorant
Additional Jurisdictional Restrictions (4)
Jurisdiction Status Max % Product Type
CN permitted_colorant - All cosmetics (Class 1)
BR permitted_colorant - Column 1: All products
ASEAN permitted_colorant - All products
ASEAN permitted_colorant - All products

Additional Ingredient Properties

1 property record from structured ingredient metadata.

colorant
{"Common_Name": "Iron Oxide Yellow (micronized)", "Chemical_Name": "Iron oxide (<0.5μm)", "CAS_Number": "51274-00-1", "Colorant_Type": "Inorganic Pigment", "Approved_Uses": "All cosmetics", "Max_Concentration_%": "No limit", "EU_Status": "Approved", "US_FDA_Status": "Approved", "Notes": "Ultra-fine transparent"}

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Regulatory (1)
JECFA Evaluation
IRON OXIDE YELLOW | 1979 | 0-0.5 mg/kg bw | TRS 648-JECFA 23/13 | FAS 6/NMRS 54A-JECFA 18/100 (1974)
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Conductive agent Dye Fragrance No specific technical function Pigment
Regulatory List Membership (4)
EU Regulated in Personal Care EU Restricted for Children (Cosmetics) IFRA Fragrance Transparency List EU CosIng Cosmetics Ingredient Database

Expert Verdict

Expert safety assessment and concern-level summary for CI 77492 (Yellow Iron Oxide).

Regulatory Flags

eu-annex-iv fda-color-additive-exempt iarc-group-3 cosmos-compliant heavy-metal-limits-apply eye-area-approved nanoparticle-distinction-note eu_children_restricted ifra_fragrance eu_cosing_listed

Known Synonyms

EINECS 257-098-5 Ferric oxide, yellow

Chemical Function

Dye Pigment

Regulatory Lists

IFRA Transparency children; Europe; Personal care children; Europe; Personal care - dental care - toothpaste children; Europe; Personal care Europe; Personal care Europe; Personal care consumer_product; Europe inert_ingredient; non_food_use; Pesticides Europe; plastic_additive Europe Europe; Personal care Arts and crafts/Office supplies - body paint - tattoo ink; Europe Arts and crafts/Office supplies - body paint - tattoo ink; Europe IFRA Transparency

Australian Status

AICIS status: listed

Frequently Asked Questions

Is CI 77492 (Yellow Iron Oxide) safe in cosmetics?

CI 77492 (Yellow Iron Oxide) has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.

Is CI 77492 (Yellow Iron Oxide) allowed in the EU?

CI 77492 (Yellow Iron Oxide) EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does CI 77492 (Yellow Iron Oxide) do in cosmetics?

CI 77492 (Yellow Iron Oxide) functions as: Colorant. It is classified as a Colorant in our database. CAS number: 51274-00-1.

Is CI 77492 (Yellow Iron Oxide) used outside cosmetics?

CI 77492 (Yellow Iron Oxide) also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Is CI 77492 (Yellow Iron Oxide) in Your Products?

Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free →

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for CI 77492 (Yellow Iron Oxide) in your formulation.