| Identification | More | [Name]
Ioxynil | [CAS]
1689-83-4 | [Synonyms]
3,5-DIIODO-4-HYDROXYBENZONITRILE
4-CYANO-2,6-DIIODOPHENOL
4-HYDROXY-3,5-DIIODOBENZONITRILE
4-HYDROXY-3,5-DIIODOPHENYL CYANIDE
ACP 63303(R)
ACTRIL
ACTRIL(R)
BANTROL(R)
CERTROL(R)
IOTRIL
IOXYNIL
'LGC' (1620)
MAESTRO II
MEXTROL
SANPXYNIL
TOTRIL
TRIONYLHAWK
2,6-Diiodo-4-cyanophenol
3,5-diiodo-4-hydroxy-benzonitril
3,5-Dijod-4-hydroxy-benzonitril | [EINECS(EC#)]
216-881-1 | [Molecular Formula]
C7H3I2NO | [MDL Number]
MFCD00016422 | [Molecular Weight]
370.91 | [MOL File]
1689-83-4.mol |
| Safety Data | Back Directory | [Hazard Codes ]
N-T,N,T | [Risk Statements ]
R63:Possible risk of harm to the unborn child.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R48/22:Harmful: danger of serious damage to health by prolonged exposure if swallowed .
R36:Irritating to the eyes.
R23/25:Toxic by inhalation and if swallowed .
R21:Harmful in contact with skin. | [Safety Statements ]
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S60:This material and/or its container must be disposed of as hazardous waste .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37:Wear suitable protective clothing and gloves .
S63:In case of accident by inhalation, remove casualty to fresh air and keep at rest. | [RIDADR ]
3276 | [WGK Germany ]
3 | [RTECS ]
DI4025000 | [HazardClass ]
6.1 | [PackingGroup ]
III | [HS Code ]
29269095 | [Hazardous Substances Data]
1689-83-4(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Chemical Properties]
beige amorphous powder | [Uses]
3,5-Diiodo-4-hydroxybenzonitrile is used in the preparation of herbicides Bromoxynil and Ioxynil. | [Definition]
ChEBI: A nitrile that is benzonitrile substituted by a hydroxy group at position 4 and iodo groups at positions 3 and 5. | [Production Methods]
The industrial synthesis of ioxynil begins with a phenol derivative, typically hydroxybenzonitrile, which undergoes controlled iodination to introduce two iodine atoms at the 3 and 5 positions of the aromatic ring. This step is crucial for enhancing the herbicide’s lipophilicity and biological activity. The resulting compound, 4-hydroxy-3,5-diiodobenzonitrile, is then subjected to esterification with various alkanoic acids (such as n-heptanoic or n-butyric acid) to form ioxynil esters, which improve formulation stability and plant uptake. | [Mechanism of action]
Selective, systemic with contact action, acts by inhibiting photosynthesis at Photosystem II | [Pesticide Type]
Herbicide; Metabolite |
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J & K SCIENTIFIC LTD.
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Alfa Aesar
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Energy Chemical
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