Moderate Cosmetic Ingredient NOAEL Data

Acid Yellow 73 Sodium Salt

Also known as: C.I. Acid yellow 73, Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dihydroxy-, disodium salt, Calcocid uranine B4315, 9-o-Carboxyphenyl-6-hydroxy-3-isoxanthone, disodium salt, Disodium 6-hydroxy-3-oxo-9-xanthene-o-benzoate (+12 more)

INCI: ACID YELLOW 73 SODIUM SALT

Acid Yellow 73 Sodium Salt (CAS 518-47-8) is a cosmetic cosmetic ingredient functioning as Colorant / Hair dye. Reported NOAEL =250 mg/kg bw/day in Rabbit (ToxValDB_ECHA_IUCLID); 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 and pharmaceutical data.

View industrial chemical safety profile for CAS 518-47-8 →

Auto-generated CPSR Part A draft with source citations
Function
Colorant / Hair dye
Safety Rating
MODERATE

Chemistry & Identifiers

Formula
C20H10Na2O5
MW
376.3 g/mol
EC Number
208-253-0
PubChem CID
10608
IUPAC Name
disodium;2-(3-oxido-6-oxoxanthen-9-yl)benzoate
InChIKey
NJDNXYGOVLYJHP-UHFFFAOYSA-L

Regulatory Status

EU EU Status restricted
US US Status permitted
US Notes Permitted as D&C Yellow No. 8 for externally applied drugs and cosmetics; 21 CFR 74.1708

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Acid Yellow 73 Sodium Salt.

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

4 study endpoints found for Acid Yellow 73 Sodium Salt. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL =250 mg/kg bw/day oral Rabbit short-term ToxValDB_ECHA_IUCLID
NOAEL =500 mg/kg bw/day oral Rat short-term ToxValDB_ECHA_IUCLID
NOAEL =1500 mg/kg bw/day oral Rat reproduction developmental ToxValDB_ECHA_IUCLID
NOAEL =2241.4 mg/kg bw/day injection Rabbit reproduction developmental ToxValDB_ECHA_IUCLID

ECHA REACH Registration

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

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

PubChem Annotations

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

Safety (1)
Skin Eye Respiratory Irritation
Eye, skin, ... and/or respiratory tract irritation.
Source: Hazardous Substances Data Bank (HSDB)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Dye
Regulatory List Membership (1)
EU Restricted for Children (Cosmetics)

Expert Verdict

Expert safety assessment and concern-level summary for Acid Yellow 73 Sodium Salt.

Regulatory Flags

colorant eu_children_restricted

NOAEL Studies Summary

View details ->

Public NOAEL study rows linked to Acid Yellow 73 Sodium Salt by CAS number or substance name.

Studies
4
Lowest NOAEL
250 mg/kg bw/day
Highest NOAEL
2241.4 mg/kg bw/day
ToxValDB_ECHA_IUCLID

Known Synonyms

C.I. Acid yellow 73 Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dihydroxy-, disodium salt Calcocid uranine B4315 9-o-Carboxyphenyl-6-hydroxy-3-isoxanthone, disodium salt Disodium 6-hydroxy-3-oxo-9-xanthene-o-benzoate EINECS 208-253-0 Fluorescein, soluble Fluor-I-strip A.T. Funduscein NCI-C54706 Sodium salt of hydroxy-o-carboxy-phenyl-fluorone Soluble fluoresceine Uranine Yellow Japan Yellow 202(1) Funduscein-25 Ak-Fluor UNII-93X55PE38X

Chemical Function

Dye

Regulatory Lists

children; Europe; Personal care children; Europe; Personal care - specialized bath products - bath salts children; Europe; Personal care children; Europe; Personal care pharmaceutical Personal care CEDI inert_ingredient; non_food_use; Pesticides

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

Compound
FLUORESCEIN SODIUM
ChEMBL ID
CHEMBL1628233
Max Phase
4
Adverse Event Associations
31
View full pharmaceutical profile →

Frequently Asked Questions

Is Acid Yellow 73 Sodium Salt safe in cosmetics?

Acid Yellow 73 Sodium Salt has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted. 4 toxicological study endpoint(s) are available in our database.

Is Acid Yellow 73 Sodium Salt allowed in the EU?

Acid Yellow 73 Sodium Salt EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.

What does Acid Yellow 73 Sodium Salt do in cosmetics?

Acid Yellow 73 Sodium Salt functions as: Colorant / Hair dye. It is classified as a cosmetic ingredient in our database. CAS number: 518-47-8.

What is the NOAEL for Acid Yellow 73 Sodium Salt?

The NOAEL (No Observed Adverse Effect Level) for Acid Yellow 73 Sodium Salt is =250 mg/kg bw/day based on a short-term study via oral route in Rabbit. A total of 4 study endpoints are available. Source: ToxValDB_ECHA_IUCLID.

Is Acid Yellow 73 Sodium Salt used outside cosmetics?

Acid Yellow 73 Sodium Salt also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

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