# Sodium tris(1,2-naphthoquinone 1-oximato-O,O')ferrate(1-)

URL: https://app.greenveil.ai/ingredients/ingredient_cas_16143_80_9
Categories: beauty, industrial
Functions: Colorant, Colourant
Identifier: DTXSID401015274

> Sodium tris(1,2-naphthoquinone 1-oximato-O,O')ferrate(1-): Used in cosmetics as a colourant. CI 10006 is classed chemically as a nitroso colour. Greenveil chemical-concern score: 20/100 — Minor concern based on regulatory listings.. Compiled from 3 published data sources.

## Safety assessment

- Chemical concern score: 20/100 — Minor concern based on regulatory listings.
- Confidence in this assessment: High
- Is it a concern? Minor concern: no hazard classifications on record. It is listed for cosmetic use in the EU.
- Rationale: Sodium tris(1,2-naphthoquinone 1-oximato-O,O')ferrate(1-) is listed in Annex IV of the EU Cosmetics Regulation (EC) 1223/2009 (colorants allowed in cosmetic products).

## Regulatory status

- EU: Active — CI 10006 is classed chemically as a nitroso colour. It conforms generally to the formula: Restriction: IV/1
- EU: Active — Cosmetics Regulation annex IV / ref 1.
- EU: allowed_listed — Annex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products. Maximum concentration: Rinse-off product
- US: commercial use observed — EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Dye, Pigment.

## Expert safety opinions

- SCCS (EU Scientific Committee on Consumer Safety): no opinion on file.
- CIR (Cosmetic Ingredient Review (US expert panel)): no opinion on file.

## Data sources

- CosIng (updated 2026-09-23): https://ec.europa.eu/growth/tools-databases/cosing/details/30381
- EU CosIng Cosmetics Regulation Annexes (updated 2020-08-14): https://ec.europa.eu/growth/tools-databases/cosing/reference/annexes/list/IV
- EPA Chemical and Products Database (updated 2019-12-20): https://ec.europa.eu/growth/tools-databases/cosing/index.cfm?fuseaction=search.details_v2&id=32694

_Assessed by Greenveil._