Tebuconazole Chemical Properties

Melting point:

102-105°C

Boiling point:

476.9±55.0 °C(Predicted)

Density 

1.25

vapor pressure 

1.7 x l0^-6 Pa (20 °C)

refractive index 

1.5800 (estimate)

Flash point:

100 °C

storage temp. 

Sealed in dry,2-8°C

solubility 

Chloroform: Slightly Soluble; Methanol: Slightly Soluble

pka

13.70±0.29(Predicted)

color 

White to Almost white

Water Solubility 

32 mg/L at 20 ºC

Merck 

14,9092

InChIKey

PXMNMQRDXWABCY-UHFFFAOYSA-N

LogP

3.700

CAS DataBase Reference

107534-96-3(CAS DataBase Reference)

NIST Chemistry Reference

Tebuconazole(107534-96-3)

EPA Substance Registry System

Tebuconazole (107534-96-3)

Safety Information

Hazard Codes 

Xn;N,N,Xn

Risk Statements 

22-51/53-63

Safety Statements 

2-22-36/37-61

RIDADR 

UN 3077 9/PG 3

WGK Germany 

3

RTECS 

XZ4803270

HazardClass 

9

PackingGroup 

III

HS Code 

29339900

Hazardous Substances Data

107534-96-3(Hazardous Substances Data)

Toxicity

bird - domestic,LD50,oral,> 1gm/kg (1000mg/kg),Pesticide Manual. Vol. 9, Pg. 785, 1991.

Tebuconazole Usage And Synthesis

Description

Tebuconazole is a trazole fungicide. It is taken up by plants and transported within tissues. It is used as a seed dressing, which works effectively against various smut and bunt diseases of cereals. As foliar spray tebuconazole controls numerous phathogens such as rust species, powdery mildew, and scale in various crops. It is also used to control pests including yellow leaf spot, black spot, net blotch, and Scelerotinia rot.
Tebuconazole can be applied to control above mentioned diseases on cereals (including wheat, barley, oat, rye), grapes, peanuts, vegetables (onions and peas), bananas, sugarcane.

References

[1] http://sitem.herts.ac.uk/aeru/ppdb/en/Reports/610.htm
[2] Pesticide residues in food – 1994 Report sponsored jointly by FAQ and WHO
[3] https://www.efsa.europa.eu/en/efsajournal/pub/3485

Chemical Properties

White Solid

Uses

A triazole fungicide showing potential carcinogenicity

Uses

Tebuconazole used as a seed dressing is effective against various smut and bunt diseases of cereals. Used as a spray it controls numerous pathogens in various crops: rust species, powdery mildew, Rhyncosporum secalis, Sqtoria spp., Pyrenophora spp., Fusarium spp. in cereals, Mycosphaerella spp. in bananas, Pucciniu spp. and Sclerufium roIfsii in peanuts.

Uses

Ergosterol biosynthesis inhibitor. Fungicide.

Uses

Fungicide.

Definition

ChEBI: 1-(4-chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol is a tertiary alcohol that is pentan-3-ol substituted by a 4-chlorophenyl, methyl, methyl, and a 1H-1,2,4-triazol-1-ylmethyl at positions 1, 4, 4 and 3 respectively. It is a member of monochlorobenzenes, a member of triazoles and a tertiary alcohol.

Agricultural Uses

Fungicide, Plant growth regulator: Used as a seed treatment against smuts and bunts of cereals; as a foliar spray against diseases of cereal, peanuts, oilseed rape, grapes, bananas, stone fruit, and pome fruit. Registered for use in EU countries. Registered for use in the U.S.

Trade name

BAY®-HWG 1608; BAYER®-HWG-1608 CORAIL®; ELITE®; FOLICUR®; FOLITRAZOLE®; GAUCHO®; HORIZON®; HWG 1608®; LYNX-1.2®; PREVENTOL® RAXIL (tebuconazole + metalaxyl); SILVACUR®; TEBUJECT®; WOLMAN®; WOODLIFE®

Metabolic pathway

Tebuconazole is degraded in soils and does not accumulate. In plants the metabolites were mainly compounds containing triazole, and in mammals tebuconazole was rapidly metabolised and excreted in urine and faeces.

Degradation

Tebuconazole is stable to elevated temperatures. Under sterile conditions it is stable to hydrolysis in water. It is hydrolysed slowly with a DTS0 of >1 year.
Only two products were formed by irradiation of a suspension of tebuconazole in water with UV light (>280 nm). These were the hydrochloride (3) and 1,2,4-triazole (2). The expected product in which chlorine was replaced by hydroxyl could not be isolated. In organic solvents a number of products were formed. Several products (3, 4, 5, 6, 7, 8, 9, 12, 13, 14) were isolated from benzene after 72 hours irradiation (>280 nm). In a number of cases products isolated from photolysis in benzene were formed by reactions in which the solvent participated and involved addition of a benzene molecule (4, 9, 5, 6). On irradiation in methylene chloride and methanol, 4-chloracetophenone (10) and acetophenone (11) were also identified in addition to starting material and 1,2,4-triazole (Wamhoff et al., 1994).

Tebuconazole(107534-96-3)Related Product Information

• Ethylparaben
• Dimethyl sulfone
• Ethanol
• N,N-Dimethylformamide
• Ethyl formate
• Ethyl acetate
• Trinexapac-ethyl
• 2-Ethoxyethanol
• Poly(dimethylsiloxane)
• Chlorodimethylphenylsilane
• N,N-Dimethylacetamide
• N,N-Dimethylaniline
• Dimethicone
• ISOXADIFEN-ETHYL
• Dimethyl sulfoxide
• Hexaconazole
• Tebuconazole-d9
• Diethyl ether