# 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1)

URL: https://app.greenveil.ai/ingredients/ingredient_dtxsid_dtxsid0027359
Categories: beauty, industrial
Functions: Colourant
Identifier: DTXSID0027359

> 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1): Used in consumer products as a colourant. EPA CPDat observed this chemical in 116 composition records across product categories including Home maintenance, Arts and crafts/office supplies, Electronics/small appliances. Compiled from 4 published data sources.

## Safety assessment

- Chemical concern: not yet assessed
- Is it a concern? We haven't assessed a concern score for this ingredient yet.
- Rationale: EPA CPDat observed this chemical in 116 composition records across product categories including Home maintenance, Arts and crafts/office supplies, Electronics/small appliances.

## Regulatory status

- US: commercial use observed — EPA CPDat observed this chemical in 116 composition records across product categories including Home maintenance, Arts and crafts/office supplies, Electronics/small appliances. EPA CPDat classifies this chemical for functional uses including Pigment.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

## 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

- EPA Chemical and Products Database (updated 2020-11-27): http://siri.org/msds/f2/ccc/cccmt.html
- EPA DSSTox Identifiers (updated 2025-12-29): https://epa.figshare.com/articles/dataset/Chemistry_Dashboard_Data_DSSTox_Identifiers_Mapped_to_CAS_Numbers_and_Names/5588566
- FDA GSRS UNII (updated 2026-02-26): https://precision.fda.gov/uniisearch/
- openFDA Substance (updated 2026-05-24): https://api.fda.gov/other/substance.json?search=unii:XA4L9U490C

_Assessed by Greenveil._