chem-data European chemical and regulatory registry

Compound record

Antimony trioxide

1309-64-4 · synergist · flame retardant

flame retardantsynergistplastics
Obligations

Operational follow-up for SCIP, article, declaration, and escalation workflows.

Lookup labels

Antimony sesquioxideAntimonious oxideDiantimony trioxide
Dossier Status Obligations Why Alternatives Changes Similar Sources
CAS 1309-64-4
Formula O3Sb2
Molecular weight 291.52 g/mol
InChIKey GHPGOEFPKIHBNM-UHFFFAOYSA-N

Operational view

SCIP, article, and compliance checks

1frameworksimported regulation anchors behind this route
1obligationsdistinct prompts extracted from current rows
2audiencesteams that usually need this review first
8 Mar 2026latest datemost recent listed, effective, or checked anchor

Antimony trioxide is currently surfaced as no current candidate list row imported in the EU.

This page turns the imported framework rows into task prompts. It is meant to answer the operational question after the status question, especially when teams need SCIP, article, procurement, or substitution guidance.

The fastest way to use it is: confirm the active framework, scan the first operational checks, then open the legal source only if the claim needs escalation or formal sign-off.

How to use this obligations page

The obligations page should stay operational and conservative. For antimony trioxide, the main value is translating a formulation or material question into a clear checklist even when the regulatory status page is relatively light.

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.

 Portfolio review

Screen affected product families and formulations

The use profile suggests this substance can appear in materials portfolios where one listing can ripple across multiple SKUs, suppliers, or component bills.

 Alternatives

Open structurally nearby substances before substitution work starts

The alternatives route groups lower-pressure neighbors, regulatory peers, and same-class analogs so the team can compare candidates before a sourcing scramble.

 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.

First checks

What teams usually validate before escalating

First check

Confirm whether the substance appears in formulations, compounds, or finished materials that still trigger declaration workflows.

Use this as a first-pass screening question before legal or procurement teams go back to the source text.

First check

Check whether customer questionnaires or restricted-substance lists require a documented EU status answer anyway.

Use this as a first-pass screening question before legal or procurement teams go back to the source text.

First check

Open the source route before escalation if the discussion turns from screening to formal citation.

Use this as a first-pass screening question before legal or procurement teams go back to the source text.

First check

continue routine watchlist monitoring until a substance-specific row is imported

Use this as a first-pass screening question before legal or procurement teams go back to the source text.

Framework triggers

Rows behind the action prompts

CandidateList 8 Mar 2026

No current Candidate List row imported

No positive Candidate List entry captured in the current imported source set

continue routine watchlist monitoring until a substance-specific row is imported

Open official source