Compound record

Chromium trioxide

Also known as CrO3

1333-82-0 · candidate list substance

SVHC Candidate ListEU monitoring

Dossier

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

Lookup labels

CrO3 trioxochromiumChromium(VI) oxideChromtrioxid

Dossier Status Obligations Why Alternatives Changes Similar Sources

CAS 1333-82-0

Formula CrO3

Molecular weight 99.994 g/mol

InChIKey WGLPBDUCMAPZCE-UHFFFAOYSA-N

Current EU status

Regulatory snapshot for Chromium trioxide

Chromium 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) Mutagenic (Article 57b), and this page is designed for fast status checks before deeper source review.

Searchers usually land here for the chemical name, CAS number, abbreviation CrO3, 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

15 Dec 2010latest anchor datelisted, effective, or checked date

Identity

CAS, formula, aliases, and use context

Fast lookup

CAS 1333-82-0 · Formula CrO3 · Molecular weight 99.994 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: 1333-82-0
EC: 215-607-8
Formula: CrO3
Molecular weight: 99.994 g/mol
Primary class: candidate list substance
Synonym count: 78

Search-friendly summary

Chromium trioxide (CrO3) , CAS 1333-82-0, is tracked here as a monitored substance in the candidate list substance class.

Common names and aliases

trioxochromiumChromium(VI) oxideChromtrioxidMonochromium trioxideCHROMIC TRIOXIDEChromsaeureanhydrid

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

Use this when you want the hazard or legal basis behind the current status, not just the status label itself.

Alternatives

Potential substitutes and nearby molecules

Use this to branch into lower-pressure neighbors, same-class analogs, and candidate-list peers.

Changes

What changed over time

Use this when you want the timeline, not just the current state.

Sources

Verify where the data came from

Use this when you need to audit provenance before trusting a claim.

Action prompts

Fast compliance and screening routes

Article duties

Check Candidate List threshold and SCIP relevance

Use this when the substance may sit in articles, components, or imported goods and you need to confirm communication and SCIP workflows.

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.