Compound record

O,O,O-triphenyl phosphorothioate

Also known as CCG-2159

597-82-0 · candidate list substance / organophosphorus substance · flame retardant

CCG-2159 SVHC Candidate ListEU monitoringflame retardant O,O,O-Triphenyl phosphorothioateTriphenyl phosphorothionateTriphenyl phosphorothioate

Dossier Status Obligations Why Alternatives Changes Similar Sources

CAS 597-82-0

Formula C18H15O3PS

Molecular weight 342.3 g/mol

InChIKey IKXFIBBKEARMLL-UHFFFAOYSA-N

Current EU status

Regulatory snapshot for O,O,O-triphenyl phosphorothioate

O,O,O-triphenyl phosphorothioate is currently surfaced as candidate list substance in the EU.

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

Searchers usually land here for the chemical name, CAS number, abbreviation CCG-2159, 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

21 Jan 2025latest anchor datelisted, effective, or checked date

Identity

CAS, formula, aliases, and use context

CAS: 597-82-0
EC: 209-909-9
Formula: C18H15O3PS
Molecular weight: 342.3 g/mol
Primary class: candidate list substance
Synonym count: 45

Search-friendly summary

O,O,O-triphenyl phosphorothioate (CCG-2159) , CAS 597-82-0, is tracked here as a flame retardant substance in the candidate list substance class.

Common names and aliases

O,O,O-Triphenyl phosphorothioateTriphenyl phosphorothionateTriphenyl phosphorothioatePhosphorothioic acid, O,O,O-triphenyl esterThiophosphoric acid triphenyl esterO,O,O-Triphenyl thiophosphate

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

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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.