Compound record

Hexahydromethylphthalic anhydride

Also known as MHHPA

25550-51-0 · candidate list substance

SVHC Candidate ListEU monitoring

Dossier

Identity-first dossier for exact-name, CAS, and use-context lookups.

Lookup labels

MHHPA Methylhexahydrophthalic anhydrideHexahydro-1-methylphthalic anhydrideEINECS 256-356-4

Dossier Status Obligations Why Alternatives Changes Similar Sources

CAS 25550-51-0

Formula C9H12O3

Molecular weight 168.19 g/mol

InChIKey VYKXQOYUCMREIS-UHFFFAOYSA-N

Current EU status

Regulatory snapshot for Hexahydromethylphthalic anhydride

Hexahydromethylphthalic anhydride is currently surfaced as candidate list substance in the EU.

The current imported view anchors this substance in CandidateList. The live rationale focuses on Respiratory sensitising properties (Article 57(f) - human health), and this page is designed for fast status checks before deeper source review.

Searchers usually land here for the chemical name, CAS number, abbreviation MHHPA, and the question of whether the substance is tied to SVHC, REACH, POPs, or SCIP-style compliance work.

Candidate List substancecurrent statuslatest imported framework state

19 Dec 2012latest anchor datelisted, effective, or checked date

Identity

CAS, formula, aliases, and use context

Fast lookup

CAS 25550-51-0 · Formula C9H12O3 · Molecular weight 168.19 g/mol · Current status Candidate List substance

If you landed here for formula, molecular weight, or exact substance identity, this block gives the shortest route before you branch into status, obligations, or sources.

CAS: 25550-51-0
EC: 256-356-4
Formula: C9H12O3
Molecular weight: 168.19 g/mol
Primary class: candidate list substance
Synonym count: 48

Search-friendly summary

Hexahydromethylphthalic anhydride (MHHPA) , CAS 25550-51-0, is tracked here as a monitored substance in the candidate list substance class.

Common names and aliases

Methylhexahydrophthalic anhydrideHexahydro-1-methylphthalic anhydrideEINECS 256-356-4CHEBI:554613a-methylhexahydro-2-benzofuran-1,3-dioneEINECS 247-094-1

What to do next

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Status

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Go here for the framework answer block, listed dates, reasons, and the imported basis for the current EU status.

Obligations

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Why monitored

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Alternatives

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Changes

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Sources

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Action prompts

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Article duties

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Source check

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Every summary should point back to the underlying authority surface. Use the source route when the exact notice, registry entry, or legal text matters.