Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea
Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.
Chemical identity and properties

Forchlorfenuron
Forchlorfenuron is a member of the class of phenylureas that is urea substituted by a phenyl group and a 2-chloropyridin-4-yl group at positions 1 and 3 respectively. It is a plant growth regulator widely used in agriculture for improving fruit quality and fruit size. It has a role as a plant growth regulator. It is a member of phenylureas and a monochloropyridine. — ChEBI
- IUPAC name
- 1-(2-chloro-4-pyridinyl)-3-phenylurea
- Molecular formula
- C12H10ClN3O
- Molecular weight
- 247.68 g/mol
- Exact mass
- 247.0512396 Da
- XLogP3
- 2.4
- Topological polar surface area
- 54.0 Ų
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 2
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:81861
- ChEMBL:CHEMBL1229826
- EPA DTXSID:DTXSID1034634
- PubMed:32998050
- PubMed:22865911
- PubMed:22526663
- PubMed:22393705
- PubMed:22320078
- PubMed:22301957
- PubMed:22148585
- PubMed:21800439
- PubMed:21797026
- PubMed:21562652
- PubMed:21168241
- PubMed:20715019
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Record details
Chemical name
Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea
Chemical / IUPAC name
Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea
Regulatory information
CMR
| Category | Carcinogenic | Mutagenic | Reprotoxic |
|---|---|---|---|
| Cat. 2 | ✓ | — | — |
Key data
Related records for Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea
Direct matches are limited for this record, so nearby entries from Annex II are shown as well.
(6R-trans)-1-((7-Ammonio-2-carboxylato-8-oxo-5-thia-1-azabicyclo-[4.2.0]oct-2-en-3-yl)methyl)pyridi…
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Ethidium bromide; 3,8-diamino-1-ethyl-6-phenylphenantridinium bromide
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What Annex II means for Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea
Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea is listed as a prohibited substance under Annex II of EU Cosmetics Regulation 1223/2009 and must not be intentionally added. Article 17 separately addresses unintended small quantities that are technically unavoidable under good manufacturing practice and compatible with the Article 3 safety requirement.
Formulators must screen their ingredients and raw materials to ensure none contain this substance. Suppliers should provide documentation confirming absence when requested.
The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.
Compliance checklist
- Verify this substance is absent from all raw materials and finished formulations.
- Request absence confirmation or CoA from raw material suppliers.
- Document the screening result in the Product Information File (PIF).
- This substance has CMR classification. Review the CMR table above and verify current Annex II/III status before use.
Frequently asked questions
Source note for Annex II record Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea
This page summarizes one Annex II record for Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.
Use this record page to review Annex II conditions for Forchlorfenuron (ISO); 1-(2-chloro-4-pyridyl)-3-phenylurea, but confirm any final regulatory decision against the current official annex wording and source files.
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