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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
Last updated:2026-07-31 15:25:13
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

Ioxynil Properties

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)  Skull and Crossbones (GHS06)Health Hazard (GHS08)Environment (GHS09)
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
1
3 0

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
Product number Packaging Price Buy
36131 100mg $61.3 Buy
CS-0081373 50mg $27 Buy
CS-0081373 100mg $43 Buy
CD12134740 100g $391 Buy
MT-14978 50g $465 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

Global( 128)Suppliers
Supplier Tel Email 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.
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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

View Lastest Price from Ioxynil manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Ioxynil pictures 2019-12-25 Ioxynil
1689-83-4
$1.00 1KG 98%HPLC 10t Career Henan Chemical Co
  • Ioxynil pictures
  • Ioxynil
    1689-83-4
  • $1.00
  • 98%HPLC
  • Career Henan Chemical Co

Ioxynil Spectrum

ACTRIL ACTRIL(R) ACP 63303(R) 4-CYANO-2,6-DIIODOPHENOL 4-HYDROXY-3,5-DIIODOPHENYL CYANIDE 3,5-DIIODO-4-HYDROXYBENZONITRILE SANPXYNIL 2,6-Diiodo-4-cyanophenol 3,5-diiodo-4-hydroxy-benzonitril 3,5-Dijod-4-hydroxy-benzonitril MEXTROL 'LGC' (1620) MAESTRO II BANTROL(R) IOTRIL IOXYNIL CERTROL(R) Iotox Joxynil loxynil[german] M&B 8873 m&b8873 Mylone Oxytril Trevespan TRIONYLHAWK TOTRIL 4-Cyano-2,6-diodophenol IOXYNIL PESTANAL IOXYNIL PESTANAL (3 5-DIIODO-4-HYDROXY & 3,5-Diiodo-4-hydroxybenzonitrile, 97+% 4-Hydroxy-3,5-diidobenzonitrile Benzonitrile, 4-hydroxy-3,5-diiodo- ioxynil (bsi,iso,wssa) NPH1253 3,5-dijod-4-hydroxy-benzonitrile 3,5-DIODO-4-HYDROXYBENZONITRILE ioxynil (ISO) and its salts 4-hydroxy-3,5-diiodobenzonitrile Toxynil 4-hydroxy-3,5-diiodobenzonitrile,ioxynil (ISO) 3,5-Diiodo-4-hydroxybenzonitrileIoxynil 3,5-DIIODO-4-HYDROXYBENZONITRILE,98% 4-Cyano-2,6-dijodphenol 4-hydroxy-3,5-diiodo-benzonitril Ioxynil,4-Hydroxy-3,5-diiodobenzonitrile 3.5-Diiodo-4-hydroxybenzonitrile 100mg [1689-83-4] Exp 30004A Ioksynil Ioxynil 225 EC ACP 63303 acp63303 actrilawn Actrilawn 10 Bantrol Bentrol Benzonitrile, 3,5-diiodo-4-hydroxy- Ca 69-15 ca69-15