Basic information
- Name:
Triadimefon
- CAS No.:
43121-43-3
- Molecular Structure:

- Formula:
- C14H16ClN3O2
- Molecular Weight:
- 293.78
- Deleted CAS:
- 93779-51-2
- Synonyms:
- EPA Pesticide Chemical Code 109901;Tidifon;1-(4-Chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)-butan-2-one;Triazolone;1-(4-Chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)-2-butanone;Bayleton PB;Triadimefon [BSI:ISO];2-Butanone, 1- (4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)-;1H-1,2,4-Triazole, 1-((tert-butylcarbonyl-4-chlorophenoxy)methyl)-;Tenor;Bayleton special;2-Butanone, 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)- (9CI);Nurex;MEB 6447;Diametom B;Bayleton BM;1-(4-Chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butanone;Bayleton triple;Azocene;Triadimefone [ISO-French];Bayleton;BAY-MEB-6447;Mighty;Reach;Otria 25;1-(4-Chlorophenoxy)-3,3-dimethyl-1-(1,2, 4-triazol-1-yl)-butan-2-one;BAY 6681 F;Bayleton Total;2-Butanone, 1-(4-chlorophenoxy)-3, 3-dimethyl-1-(1,2,4-triazol-1-yl)-;Acizol;Miltek;Adifon;
- EINECS:
- 256-103-8
- Density:
- 1.23 g/cm3
- Melting Point:
- 82 °C
- Boiling Point:
- 441.9 °C at 760 mmHg
- Flash Point:
- 221 °C
- Solubility:
- 0.026 g/100 mL in water
- Appearance:
- Colorless to pale yellow crystalline solid with a slight odor
- Hazard Symbols:
Xn,
N,
T,
F- Risk Codes:
- 22-43-51/53-39/23/24/25-23/24/25-11
- Safety Description:
- 24-37-61-45-36/37 Details
- Transport Information:
- UN 2588
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Chemistry
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IUPAC Name: 1-(4-Chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one
Molecular Formula: C14H16ClN3O2
Molecular Weight: 293.75 g/mol
SMILES: n1([C@@H](Oc2ccc(Cl)cc2)C(C(C)(C)C)=O)cncn1
InChI: InChI=1/C14H16ClN3O2/c1-14(2,3)12(19)13(18-9-16-8-17-18)20-11-6-4-10(15)5-7-11/h4-9,13H,1-3H3
EINECS: 256-103-8
Classification Code: Agricultural Chemical; Drug / Therapeutic Agent; Fungicide; Fungicide, bactericide, wood preservative; Fungicides, industrial; Mutation data; Pesticides
Product Categories: FUNGICIDE; 2000/60/EC; Alpha sort; ConazolesMethod Specific; Endocrine Disruptors (Draft) Pesticides & Metabolites; EPA; European Community: ISO and DIN; Fungicides; Pesticides; Q-ZAlphabetic; TP-TZMethod Specific; Endocrine Disruptors (Draft)Alphabetic
storage temperature: APPROX 4 °C
Water Solubility: 0.026 g/100 mL
Index of Refraction: 1.579
Molar Refractivity: 78.85 cm3
Molar Volume: 237 cm3
Polarizability: 31.25×10-24 cm3
Surface Tension: 42.4 dyne/cm
Density: 1.23 g/cm3
Flash Point: 221 °C
Enthalpy of Vaporization: 69.92 kJ/mol
Boiling Point: 441.9 °C at 760 mmHg
Melting Point: 82 °C
Vapour Pressure of Triadimefon (CAS NO.43121-43-3): 5.26E-08 mmHg at 25 °C
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| dog | LD50 | oral | > 500mg/kg (500mg/kg) | Pesticide Manual. Vol. 9, Pg. 831, 1991. | |
| mouse | LC50 | inhalation | 2337mg/m3 (2337mg/m3) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 34(5), Pg. 64, 1990. | |
| mouse | LD50 | oral | 1gm/kg (1000mg/kg) | Pesticide Manual. Vol. 9, Pg. 831, 1991. | |
| quail | LD50 | oral | 1750mg/kg (1750mg/kg) | Pesticide Manual. Vol. 9, Pg. 831, 1991. | |
| rabbit | LD50 | oral | 500mg/kg (500mg/kg) | "Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel," Perkow, W., Berlin, Verlag Paul Parey, 1971-1976Vol. -, Pg. -, 1971/1976. | |
| rat | LC50 | inhalation | 2450mg/m3 (2450mg/m3) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 34(5), Pg. 64, 1990. | |
| rat | LD50 | oral | 363mg/kg (363mg/kg) | Defense des Vegetaux. Vol. 31, Pg. 97, 1977. | |
| rat | LD50 | skin | > 5gm/kg (5000mg/kg) | Farm Chemicals Handbook. Vol. -, Pg. C38, 1991. |
Safety Profile
Poison by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of Cl− and NOx.
Hazard Codes:
Xn,
N,
T,
F
Risk Statements: 22-43-51/53-39/23/24/25-23/24/25-11
R22:Harmful if swallowed.
R43:May cause sensitization by skin contact.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R39:Danger of very serious irreversible effects.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
R11:Highly flammable.
Safety Statements: 24-37-61-45-36/37
S24:Avoid contact with skin.
S37:Wear suitable gloves.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S36/37:Wear suitable protective clothing and gloves.
RIDADR: 2588
RTECS: EL7100000
HazardClass: 6.1(b)
PackingGroup of Triadimefon (CAS NO.43121-43-3): III
Specification
Triadimefon (CAS NO.43121-43-3), its Synonyms are 1-(1,2,4-Triazoyl-1)-1-(4-chloro-phenoxy)-3,3-dimethylbutanone ; 1-(4-Chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)-butan-2-one ; 1-(4-Chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)-2-butanone ; 1H-1,2,4-Triazole, 1-((tert-butylcarbonyl-4-chlorophenoxy)methyl)- ; Acizol ; Adifon ; Amiral ; Azocene ; Bayleton CF ; Bayleton Total ; Bayleton triple . It is colorless to pale yellow crystalline solid with a slight odor.

