Ioxynil
- CAS No.
- 1689-83-4
- Chemical Name:
- Ioxynil
- Synonyms
- Loxynil;4-HYDROXY-3,5-DIIODOBENZONITRILE;Iotox;ACTRIL;IOTRIL;Mylone;TOTRIL;Certol;MEXTROL;IOXYNIL
- CBNumber:
- CB9365917
- Molecular Formula:
- C7H3I2NO
- Molecular Weight:
- 370.91
- MDL Number:
- MFCD00016422
- MOL File:
- 1689-83-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Ioxynil PESTANAL | 36131 | 100mg | $61.3 |
| Ioxynil ≥95% | CS-0081373 | 50mg | $27 |
| Ioxynil ≥95% | CS-0081373 | 100mg | $43 |
| 4-Hydroxy-3,5-diiodobenzonitrile 97% | CD12134740 | 100g | $391 |
| 4-Hydroxy-3,5-diiodobenzonitrile 97% | MT-14978 | 50g | $465 |
| More product size | |||
| Melting point | 200 °C |
|---|---|
| Boiling point | 282.6±40.0 °C(Predicted) |
| Density | 2.4947 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| pka | 4.95±0.23(Predicted) |
| Appearance | White to off-white Solid |
| Water Solubility | Insoluble |
| Sensitive | Light Sensitive |
| BRN | 2364041 |
| Henry's Law Constant | 1.3×102 mol/(m3Pa) at 25℃, Mackay et al. (2006) |
| CAS DataBase Reference | 1689-83-4(CAS DataBase Reference) |
| FDA UNII | 8Y734M4V9E |
| NIST Chemistry Reference | Benzonitrile, 4-hydroxy-3,5-diiodo-(1689-83-4) |
| EPA Substance Registry System | Ioxynil (1689-83-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() ![]() GHS06,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H301+H331-H312-H319-H361d-H373-H410 | |||||||||
| Precautionary statements | P273-P280-P301+P310-P302+P352+P312-P304+P340+P311-P305+P351+P338 | |||||||||
| Hazard Codes | N-T,N,T | |||||||||
| Risk Statements | 63-50/53-48/22-36-23/25-21 | |||||||||
| Safety Statements | 61-60-45-36/37-63 | |||||||||
| RIDADR | 3276 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | DI4025000 | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29269095 | |||||||||
| Hazardous Substances Data | 1689-83-4(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
Ioxynil price More Price(16)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 36131 | Ioxynil PESTANAL | 1689-83-4 | 100mg | $61.3 | 2022-05-15 | Buy |
| ChemScene | CS-0081373 | Ioxynil ≥95% | 1689-83-4 | 50mg | $27 | 2026-06-04 | Buy |
| ChemScene | CS-0081373 | Ioxynil ≥95% | 1689-83-4 | 100mg | $43 | 2026-06-04 | Buy |
| Crysdot | CD12134740 | 4-Hydroxy-3,5-diiodobenzonitrile 97% | 1689-83-4 | 100g | $391 | 2026-05-27 | Buy |
| AHH | MT-14978 | 4-Hydroxy-3,5-diiodobenzonitrile 97% | 50g | $465 | 2026-05-26 | Buy |
Ioxynil Chemical Properties,Uses,Production
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
Ioxynil Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 | factory@coreychem.com | China | 29780 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17339 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +86-189 4982 3763 | sales@tnjchem.com | China | 34526 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 17705817739 | info@dycnchem.com | China | 52693 | 58 |
| Shaanxi Didu New Materials Co. Ltd | +86-86-17392712779 +86-13289823923 | 1090@dideu.com | China | 8651 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; | support@targetmol.com | United States | 38999 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +86-571-86217390; +8618058761490 | info@gihichemicals.com | China | 49860 | 58 |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43392 | 58 |
| Mainchem Co., Ltd. | +86-0592-6210733 | sale@mainchem.com | China | 32288 | 55 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |








