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HomeProduct name listVINCLOZOLIN

VINCLOZOLIN

  • CAS NO.:50471-44-8
  • Empirical Formula: C12H9Cl2NO3
  • Molecular Weight: 286.11
  • MDL number: MFCD00055511
  • EINECS: 256-599-6
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-15 21:27:52
VINCLOZOLIN Structural

What is VINCLOZOLIN?

The Uses of VINCLOZOLIN

Vinclozolin is a non-systemic, contact fungicide that controls fruit rot, brown rot, mould and blight caused by Botrytis spp., Sclerotinia spp., Monilia spp., etc. in vines, fruits, vegetables, oilseed rape, ornamentals, hops, turf and strawberries. Vinclozolin exhibits both preventive and curative activities.

The Uses of VINCLOZOLIN

Agricultural fungicide.

What are the applications of Application

Vinclozolin is a fungicide with antiandrogenic properties

Definition

ChEBI: 3-(3,5-dichlorophenyl)-5-ethenyl-5-methyl-2,4-oxazolidinedione is a member of the class of oxazolidinones that is 5-ethenyl-5-methyl-2,4-oxazolidinedione in which the imide hydrogen is replaced by a 3,5-dichlorophenyl group. It is a dicarboximide, a dichlorobenzene, an oxazolidinone and an olefinic compound.

General Description

Colorless crystals with slight aromatic odor. Used as a fungicide.

Air & Water Reactions

Hydrolysis rapidly occurs under alkaline conditions

Reactivity Profile

A halogenated dicarboximide. Organic amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).

Agricultural Uses

Fungicide: Vinclozolin is a non-systemic fungicide which has been used on vines (such as grapes), strawberries, raspberries, chicory grown for Belgian endive, lettuce, kiwi, canola, succulent beans, and dry bulb onions. Import tolerances have been established to permit. Not approved for use in EU countries . Registered for use in the U.S.

Trade name

BAS-352-F®; BAS-35204-F®; CURALAN®; FLOTILLA®; FUMITE RONALIN®; MASCOT® contact turf fungicide; ORNALIN®[C]; POWERDRIVE®; RONILAN®; RONILAN-DF®; RONALINE-FL®; TOUCHE®; VINCHLOZOLINE®; VINCLOZOLINE®; VORLAND®

Safety Profile

Low toxicity by ingestion and inhalation. Mutation data reported. When heated to decomposition it emits very toxic fumes of Cland NOx.

Metabolic pathway

The fungicides, chlozolinate, vinclozolin, and procymidone, are added to wine after fermentation and the degradation products are isolated and identified. Chlozolinate undergoes a rapid hydrolytic loss of the ethoxycarbonyl substituent to give an oxazolidine that further undergoes hydrolytic cleavage to give 3' ,5' -dichloro-2-hydroxypropanilide. The oxazolidine ring of vinclozolin undergoes a similar hydrolysis reaction to give the corresponding anilide, 3' ,5'-dichloro-2-hydroxy-2-methylbut-3-eneanilide. Both of these anilides are stable in wine for 150 days. A different degradation behavior is observed with procymidone and leads to the formation of 3,5- dichloroaniline, which, in turn, breaks down in wine.

Purification Methods

Crystallise the fungicide from Me2CO/H2O. Its solubility at 20o (w/w%) is 44 (Me2CO), 32 (CHCl3), 25 (EtOAc) and 10 (H2O). It irritates the eyes and skin. [GP 2,207,576 1973, Chem Abstr 79 137120 1973.]

Degradation

Vinclozolin (1) was rapidly hydrolysed in alkaline solution. The hydrolytic DT50, values in pH 5, 7 and 9 solution at 25 °C were 45 days, 13.4 hours and 1.6 hours, respectively (Melkebeke et al., 1986). Szeto et al. (1989a) and Villedieu et al. (1994, 1995) reported that the opening of the oxazolidinedione ring by attack of the hydroxyl ion on the two carbonyl groups is the primary hydrolysis mechanism to yield 2-{[3,5- dichlorophenyl)carbamoyl]-oxy}-2-methyl-3-butenoica cid (2) and 3'5'- dichloro-2-hydroxy-2-methylbut-3-enanilide(3) as major products. The formation of compound 3 was likely via the intermediate N-(2-hydroxy- 2-methyl-1-oxo-buten-3-yl)-3,5-dichlorophenyl-1-carbamic acid (4). 3,5- Dichloroaniline (5) was reported as a minor hydrolysis product. The proposed hydrolytic degradation pathway of vinclozolin is presented in Scheme 1. Compound 3 was also reported as the primary degradation product of vinclozolin in wine (pH 3-4, 30 °C) whereas 3,5- dichloroaniline (5) was not detected in the wine samples (Cabras et al., 1984; Pirisi et al., 1986).
The degradation rate of vinclozolin in aqueous solution at λ> 290 nm was slower than at λ>230 nm; furthermore, the addition of humic and fulvic acids catalysed the aqueous photodegradation reaction (DT50 8 hours) to yield compound 5 and 3,5-dichlorophenyl isocyanate (6) as primary degradation products (see Scheme 1; Hustert and Moza, 1997). Schwack et al. (1995) reported the photolytic reactions of vinclozolin in various organic solvents. Addition of the solvent molecules to the vinyl moiety and dechlorination products were observed as major photodegradation reactions.

Properties of VINCLOZOLIN

Melting point: 108℃
Boiling point: 131℃ (0.05mmHg)
Density  1.51 g/cm3
vapor pressure  1.3 x 10-4 Pa (20 °C)
refractive index  1.6100 (estimate)
Flash point: 2 °C
storage temp.  APPROX 4°C
solubility  DMF: 30 mg/ml,DMSO: 30 mg/ml,Ethanol: 30 mg/ml,Ethanol:PBS(pH 7.2) (1:1): 0.5 mg/ml
Water Solubility  3.4 mg l-1 (20 °C)
form  neat
pka -3.43±0.40(Predicted)
Merck  13,10046
BRN  8331312
EPA Substance Registry System Vinclozolin (50471-44-8)

Safety information for VINCLOZOLIN

Signal word Danger
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
ghs
Environment
GHS09
GHS Hazard Statements H317:Sensitisation, Skin
H351:Carcinogenicity
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P201:Obtain special instructions before use.
P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P391:Collect spillage. Hazardous to the aquatic environment
P308+P313:IF exposed or concerned: Get medical advice/attention.

Computed Descriptors for VINCLOZOLIN

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