Compound record

Diboron trioxide

Also known as B2O3

1303-86-2 · candidate list substance · reprotox

SVHC Candidate ListEU monitoringreprotox

Dossier

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

Lookup labels

B2O3 Boron sesquioxide483W67CPF4Boron Oxydatum

Dossier Status Obligations Why Alternatives Changes Similar Sources

CAS 1303-86-2

Formula B2O3

Molecular weight 69.63 g/mol

InChIKey RPPTVYMVSNHGRG-UHFFFAOYSA-N

Current EU status

Regulatory snapshot for Diboron trioxide

Diboron 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 Toxic for reproduction (Article 57c), and this page is designed for fast status checks before deeper source review.

Searchers usually land here for the chemical name, CAS number, abbreviation B2O3, 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

18 Jun 2012latest anchor datelisted, effective, or checked date

Identity

CAS, formula, aliases, and use context

Fast lookup

CAS 1303-86-2 · Formula B2O3 · Molecular weight 69.63 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: 1303-86-2
EC: 215-125-8
Formula: B2O3
Molecular weight: 69.63 g/mol
Primary class: candidate list substance
Synonym count: 28

Search-friendly summary

Diboron trioxide (B2O3) , CAS 1303-86-2, is tracked here as a reprotox substance in the candidate list substance class.

Common names and aliases

Boron sesquioxide483W67CPF4Boron OxydatumFused boric acidCaswell No. 109BBoric oxide (B2O3)

What to do next

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Status

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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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