Zineb
Title: Zineb
CAS Registry Number: 12122-67-7
CAS Name: [[1,2-Ethanediylbis[carbamodithioato]](2-)]zinc
Additional Names: [ethylenebis(dithiocarbamato)]zinc; zinc ethylenebis(dithiocarbamate); ethylenebis(dithiocarbamic acid) zinc salt
Manufacturers' Codes: ENT-14874
Trademarks: Tritoftorol (Cerexagri)
Line Formula: (C4H6N2S4Zn)n
Literature References: Polymeric salt of ethylenebisdithiocarbamic acid; related to maneb and mancozeb, q.q.v. Prepd from a zinc salt and nabam, q.v.: C. B. Luginbuhl, US 2690448 (1954 to du Pont). Fungicidal activity is due to degradation products, principally ethylenethiuram monosulfide: R. A. Ludwig et al., Can. J. Bot. 33, 42 (1955). Activity against potato blight: B. K. De, S. B. Chattopadhyay, Pesticides 18, 52 (1984). Decomposition of zineb to ethylenebisdicarbamate and ethylene thiourea, q.v., in tomatoes: B. D. Ripley, D. F. Cox, J. Agric. Food Chem. 26, 1137 (1978). HPLC determn: K. Gustafsson et al., ibid. 29, 729 (1981). Toxicity data: T. B. Gaines, Toxicol. Appl. Pharmacol. 14, 515 (1969). Aquatic toxicology: C. J. Van Leeuwen et al., Aquat. Toxicol. 7, 145 (1985).
Properties: Powder or crystals from chloroform + alcohol. Practically insol in water. The powder spreads easily on water, also forms aq suspensions. Sol in carbon disulfide, pyridine. LD50 orally in rats: >5000 mg/kg (Gaines).
Toxicity data: LD50 orally in rats: >5000 mg/kg (Gaines)
CAUTION: Irritation of skin and mucous membranes has been reported. See: Clinical Toxicology of Commercial Products, R. E. Gosselin et al., Eds. (Williams & Wilkins, Baltimore, 5th Ed., 1984) Section II, p 313.
Use: Agricultural fungicide.

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