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CAS 1689-83-4

CAS 1689-83-4 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 1689-83-4
CAS 1689-83-4PubChem CID 15530

Ioxynil

Ioxynil is a nitrile that is benzonitrile substituted by a hydroxy group at position 4 and iodo groups at positions 3 and 5. It has a role as a herbicide, a xenobiotic and an environmental contaminant. It is a nitrile and an iodophenol. — ChEBI

IUPAC name
4-hydroxy-3,5-diiodobenzonitrile
Molecular formula
C7H3I2NO
Molecular weight
370.91 g/mol
Exact mass
370.83041 Da
XLogP3
2.0
Topological polar surface area
44.0 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

ActrilBentrol3,5-Diiodo-4-hydroxybenzonitrileTrevespanCertrolActrilawnCipotrilJoxynil
16 more reported names
LoxynilIotoxBenzonitrile, 4-hydroxy-3,5-diiodo-2,6-Diiodo-4-cyanophenolBANTROL4-Cyano-2,6-diiodophenol4-Cyano-2,6-dijodphenolM&B 8873ACP 63303Benzonitrile, 3,5-diiodo-4-hydroxy-3,5-Dijod-4-hydroxy-benzonitrilCA 69-154-Hydroxy-3,5-di-iodophenyl cyanide8Y734M4V9ECHEBI:81821RefChem:148615
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 1689-83-4

1 total
No records found for this CAS number.

How CAS 1689-83-4 is used on this site

CAS 1689-83-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 1689-83-4 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.