BITERTANOL

GENERAL

BITERTANOL is a broad spectrum systemic fungicide used mostly on fruit and vegetables. It has protective and curative activity on Venturia scab diseases of pome fruit, Monilinia of stone fruit. It is also effective on leafspot diseases and poedery mildews of stone fruit, bananas, sugar beets, peanuts and ornamentals

STRUCTURE

CAS NO.

BAYCOR

55179-31-2

ACTIVITY

Fungicides
 (Triazole Fungicides)

MOL WT.

C20H23N3O2
337.42

SYNONYMS
1-(biphenyl-4-yloxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol (20:80 ratio of (1RS,2RS) and (1RS,2SR) isomers).
-([1,1-biphenyl]-4-yloxy)--(1,1-dimethylethyl)-1H -1,2,4-triazole-1-ethanol.
all-rac-1-(biphenyl-4-yloxy)-3, 3-dimethyl-1-1-(1H-1,2,4,-triazol-1-yl) butan-2-ol.

TOXICITY

Mammals

Acute oral LD50 for rats and dogs >5,000mg/kg.
Acute dermal LD50 for rats >2,000mg/kg.
Acute inhalation LC50 (4 h) for rats > 1.2 (dust) and
>0.55mg/  air(aerosol).
Non-irritating to skin and eyes(rabbits).
NOEL (2 y) for rats and mice 101mg/kg diet.

Wildlife

Acute oral LD50 for mallard ducks > 2,000mg/kg

Fish

TLm (48 h) for carps > 10ppm.

Bee

Not toxic to bees

PRECAUTION IN HANDLING

It should be under no circumstances whatsoever be handled by children or incompetent persons. While in storage, drum should be kept well sealed and stored in cool, dry and well ventilated place. In case of accidental ingestion, the patient should be taken to a doctor who should give symptomatic treatment

SPECIFICATION

Appearance

White crystalline solid

Vapor Pressure

0.22~2.5 nPa at 20

Melting Point

110~120

Corrosiveness

Non corrosive to metals

Solubility(20)

Water : 5.0mg/ racemate
Dichloromethane : 200~500g/l (1RS, 2RS)  
                           50~100g/l (1RS, 2RS)
Hexane : 10g/ racemate
2-propanol : 20~50g/ racemate
Toluene : 10-20g/ (1RS,2RS)

Partition Coefficient

Kow logP = 4.1~4.4(20)

Stability

Stable under normal storage conditions.
Hydrolysis DT50 > 1 year (pH 4~9, 25)

Purity

92% min

Ratio of racemates

(1RS,2RS):(1RS,2SR)=1:4 [typically 1:4.5]

COMMENTS