Compound record

Diarsenic trioxide

Also known as HMS2093H20

1327-53-3 · candidate list substance

HMS2093H20 SVHC Candidate ListEU monitoring CHEBI:30621tricyclo[3.3.1.1(3,7)]tetraarsoxanetricyclo(3.3.1.1(3,7))tetraarsoxane

Dossier Status Obligations Why Alternatives Changes Similar Sources

CAS 1327-53-3

Formula As4O6

Molecular weight 395.68 g/mol

InChIKey KTTMEOWBIWLMSE-UHFFFAOYSA-N

Current EU status

Regulatory snapshot for Diarsenic trioxide

Diarsenic trioxide is currently surfaced as candidate list substance in the EU.

The current imported view anchors this substance in CandidateList. The live rationale focuses on Carcinogenic (Article 57a), and this page is designed for fast status checks before deeper source review.

Searchers usually land here for the chemical name, CAS number, abbreviation HMS2093H20, 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

28 Oct 2008latest anchor datelisted, effective, or checked date

Identity

CAS, formula, aliases, and use context

CAS: 1327-53-3
EC: 215-481-4
Formula: As4O6
Molecular weight: 395.68 g/mol
Primary class: candidate list substance
Synonym count: 20

Search-friendly summary

Diarsenic trioxide (HMS2093H20) , CAS 1327-53-3, is tracked here as a monitored substance in the candidate list substance class.

Common names and aliases

CHEBI:30621tricyclo[3.3.1.1(3,7)]tetraarsoxanetricyclo(3.3.1.1(3,7))tetraarsoxaneRefChem:586310tricyclo[3.3.1.1~3,7~]tetraarsoxaneArsentrioxid

What to do next

Use the right route for status, SCIP, and source questions

Status

Current legal state, Candidate List signals, and source-backed rationale

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

Obligations

Who needs to act, what to check, and whether SCIP matters

Use this when the question is operational: SCIP, article communication, threshold review, portfolio screening, or substitute work.

Why monitored

Why this substance is monitored in the EU

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Alternatives

Potential substitutes and nearby molecules

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Changes

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Sources

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Action prompts

Fast compliance and screening routes

Article duties

Check Candidate List threshold and SCIP relevance

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Source check

Verify the legal source before repeating the claim

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