Emamectin benzoate

Bezeichnung:Emamectin benzoate

CAS-Nr137512-74-4

Englisch Name:Emamectin benzoate

CBNumberCB4428208

SummenformelC49H77NO13

Molgewicht888.13

MOL-Datei137512-74-4.mol

Emamectin benzoate physikalisch-chemischer Eigenschaften

Schmelzpunkt	146-150°C
alpha	D -6.9° (c = 0.5% in methanol)
Dampfdruck	4 x 10^-7mPa
storage temp.	Refrigerator
Löslichkeit	Chloroform (Slightly), Methanol (Slightly)
Aggregatzustand	Solid
pka	4.2; 7.6(at 25℃)
Wasserlöslichkeit	320 mg l^-1 (pH 5), 24 mg l^-1 (pH 7), 0.1 mg l^-1 (pH 9)
Farbe	Pale Yellow to Light Yellow

Sicherheit

Toxizität

LD50 in mallard ducks, northern bobwhite quail (mg/kg): 76, 264 orally (Chukwudebe)

Gefahreninformationscode (GHS)

Bildanzeige (GHS)
Alarmwort

Achtung
Gefahrenhinweise

H301：Giftig bei Verschlucken.

H330：Lebensgefahr bei Einatmen.

H400：Sehr giftig für Wasserorganismen.

H410：Sehr giftig für Wasserorganismen mit langfristiger Wirkung.
Sicherheit

P260：Dampf/Aerosol/Nebel nicht einatmen.

P264：Nach Gebrauch gründlich waschen.

P264：Nach Gebrauch gründlich waschen.

P270：Bei Gebrauch nicht essen, trinken oder rauchen.

P271：Nur im Freien oder in gut belüfteten Räumen verwenden.

P273：Freisetzung in die Umwelt vermeiden.

P284：Atemschutz tragen.

P301+P310：BEI VERSCHLUCKEN: Sofort GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.

P304+P340：BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.

P310：Sofort GIFTINFORMATIONSZENTRUM/Arzt/ anrufen.

P320：Besondere Behandlung dringend erforderlich

P321：Besondere Behandlung

P330：Mund ausspülen.

P391：Verschüttete Mengen aufnehmen.

P403+P233：An einem gut belüfteten Ort aufbewahren. Behälter dicht verschlossen halten.

P405：Unter Verschluss aufbewahren.

P501：Inhalt/Behälter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

Emamectin benzoate Chemische Eigenschaften,Einsatz,Produktion Methoden

Chemische Eigenschaften
White Crystalline Powder
Verwenden
Insecticide.
Verwenden
A mixture of semi-synthetic Avermectins. Exists as the anhydrous and various hydrated forms having different crystal morphologies. Insecticide
Verwenden
Emamectin benzoate is a second-generation avermectin insecticide highly effective against a broad range of lepidopteran larvae and certain other insects.
Stoffwechselwegen
In laboratory studies, emamectin benzoate is relatively stable to aqueous hydrolysis (acid, neutral and alkaline) under dark conditions. Emamectin benzoate degrades extensively in soil via microbial action to multiple degradation products including the 8a-oxidation and 8a-hydroxylation products. CO2 and soil-bound residues were the major terminal residues which are incorporated into humic and fulvic acid fractions. In plants, emamectin benzoate degrades extensively to multiple polar components including the N-demethylated, N-formylated and conjugated products. Probably due to rapid elimination in faeces, the metabolic transformation of emamectin benzoate in animals is minimal. However, N-demethylation was observed as the major metabolic pathway. The hydrolytic, photolytic and overall metabolic pathways of emamectin benzoate in soils, plants and animals are presented in Schemes 1,2 and 3.
Degradation
Emamectin benzoate (1) was relatively stable to hydrolysis in acidic, neutral and alkaline solutions (pH 5, 7 and 9) at 25 °C, with less than 10% degradation occurring after 30 days. It hydrolysed most rapidly in acidic solution (pH 5) at 25 °C with a DT₅₀ of 136 days (Chukwudebe, 1992). Two polar components (each <10%) eluted close to the void volume under reversed phase chromatographic conditions.
The photodegradation half-lives of emamectin benzoate (10-12 mg 1^-1) in buffered distilled water (pH 7) containing 1% (v/v) acetonitrile, ethanol or acetone as cosolvent under continuous exposure to a xenon lamp were 65,9 and 0.5 days, respectively. In both buffered and natural pond water, the major photodegradation products included 8,9-MAB_1a (2), 8a-hydroxylated MAB_1a (3) and minor unknown polar residues (Scheme 1). In sensitised buffered water, 8a-oxo-MAB_1a (4) and 10,11-14,15-MAB_1a diepoxide (5) were found as additional residual products (Mushtaq et al., 1997).

Emamectin benzoate Upstream-Materialien And Downstream Produkte

Emamectin benzoate Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

137512-74-4, Emamectin benzoate Verwandte Suche:

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