# THIMEROSAL

URL: https://app.greenveil.ai/ingredients/ingredient_cas_54_64_8
Categories: beauty, food, industrial, pharma
Functions: preservative, Preservative
Identifier: 54-64-8

> THIMEROSAL is used as preservative / preservative. Greenveil chemical-concern score: 25/100 — Minor concern based on regulatory listings.. Assessed from 21 sources.

## Safety assessment

- Chemical concern score: 25/100 — Minor concern based on regulatory listings.
- Confidence: 4
- Rationale: Thiomersal is listed in Annex V of the EU Cosmetics Regulation (EC) 1223/2009 (preservatives allowed in cosmetic products).

## Regulatory status

- EU: allowed_listed — Annex V of EU Cosmetics Regulation (EC) 1223/2009: preservatives allowed in cosmetic products. Product types: Eye products Maximum concentration: 0.007% (of Hg) If mixed with other mercurial compounds authorized by this Regulation, the maximum concentration of Hg remains fixed at 0.007% Conditions of use and warnings: Contains Thiomersal
- US: commercial use observed — EPA CPDat observed this chemical in 164 composition records across product categories including Laboratory supplies, Raw materials, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Preservative.
- US: inactive ingredient database — Route: AURICULAR (OTIC); Dosage form: DROPS; Potency: NA
- US: inactive ingredient database — Route: AURICULAR (OTIC); Dosage form: SOLUTION; Potency: 0.01 %w/w
- US: inactive ingredient database — Route: AURICULAR (OTIC); Dosage form: SUSPENSION; Potency: 0.01 %w/v
- US: inactive ingredient database — Route: INTRAMUSCULAR; Dosage form: INJECTION; Potency: 0.3 mg
- US: inactive ingredient database — Route: INTRAVENOUS; Dosage form: INJECTION; Potency: 0.3 mg
- US: inactive ingredient database — Route: NASAL; Dosage form: DROPS; Potency: 0.01 mg/1ml
- US: inactive ingredient database — Route: NASAL; Dosage form: SOLUTION; Potency: 0.01 mg/1ml
- US: inactive ingredient database — Route: OPHTHALMIC; Dosage form: SOLUTION; Potency: 0.01 %w/v
- US: inactive ingredient database — Route: OPHTHALMIC; Dosage form: SOLUTION/ DROPS; Potency: NA
- US: inactive ingredient database — Route: OPHTHALMIC; Dosage form: SUSPENSION; Potency: NA
- US: inactive ingredient database — Route: OPHTHALMIC; Dosage form: SUSPENSION/ DROPS; Potency: 1 %v/v
- US: inactive ingredient database — Route: SUBCUTANEOUS; Dosage form: INJECTION; Potency: NA
- US: inactive ingredient database — Route: TOPICAL; Dosage form: CREAM; Potency: NA
- US: inactive ingredient database — Route: TOPICAL; Dosage form: LOTION; Potency: NA
- US: marketed drug occurrence — FDA NDC lists this ingredient in 2 active drug products and 2 total products.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._