Draft ADME-B Modeling for HHCB
Summary
EPA has released a draft ADME-B (Absorption, Distribution, Metabolism, Excretion-Bioaccumulation) modeling document for HHCB (a synthetic musk compound used in fragrances). The document is available for public review. This draft appears to support EPA's chemical risk assessment process under TSCA (Toxic Substances Control Act).
What changed
EPA has published a draft ADME-B (Absorption, Distribution, Metabolism, Excretion - Bioaccumulation) modeling document for HHCB (Galaxolide), a synthetic fragrance compound. The document presents EPA's scientific methodology for modeling the bioaccumulation potential of this chemical substance.\n\nAffected parties including chemical manufacturers, fragrance producers, and downstream product manufacturers should review the draft modeling approach to understand how EPA may assess HHCB's environmental and health risks. Stakeholders may have opportunities to provide scientific input on the methodology.
What to do next
- Review the draft ADME-B modeling document for HHCB
- Submit comments to EPA as applicable
Archived snapshot
Apr 16, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
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