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Chemical Identification
Common Name
Carboxin
中文通用名
萎锈灵
IUPAC
5,6-dihydro-2-methyl-1,4-oxathiine-3-carboxanilide
CAS
5,6-dihydro-2-methyl-N-phenyl-1,4-oxathiin-3-carboxamide
CAS No.
5234-68-4
Molecular Formula
C12H13NO2S
Molecular Structure
Category
Activity
Fungicide
Premix
Clothianidin+carboxin+metalaxyl+trifloxystrobin
Imidacloprid+captan+carboxin
Imidacloprid+carboxin+metalaxyl
Imidacloprid+carbendazim+carboxin
Imidacloprid+thiram+carboxin
Permethrin+carboxin
Carboxin+thiram
Thiamethoxam+Thiram+Carboxin
Thiamethoxam+Thiram+Carboxin
Pyraclostrobin+Carboxin+Thiamethoxam
Carboxin+Tebuconazole
Carboxin+Triadimefon
Metalaxyl+Carboxin+Ipconazole
Flowable concentrate, wettable powder. Premix Parters: 2,4-D; 2,4-D dicamba mecoprop-P; dicamba MCPA mecoprop-P; glyphosate;
Physical Properties
Off-white crystals. Melting range (two crystal structures which revert to one in solution): 91.5°-92.5°C; 98.0°-100°C.
Toxicology
Oral:Acute oral LD50 for rats 3820 mg/kg. Percutaneous:Acute percutaneous LD50 for rabbits >4000 mg/kg. Irritating to eyes (rabbits). Inhalation:LC50(1 h) for rats >20 mg/l air. ADI:(JMPR) 0.01 mg/kg b.w.[1986].
Environmental Profile
Ecotoxicology: Algae:EC50 (96 h) for Chlorella 2.4 mg/l; (5 d) for Selenastrum 0.48 mg/l.Bees:Not hazardous to bees when used as directed; LD50 >181 mg/bee.Birds:Dietary LC50(8 d) for mallard ducks >4640, bobwhite quail >10 000 mg/kg diet.Daphnia:LC50 (48 h) 84.4 mg/l.Fish: LC50 (96 h) for rainbow trout 2, bluegill sunfish 1.2 mg/l.Worms:LC50 (14 d) for earthworms 500-1000 ppm.Other aquatic spp.:EC50(14 d) for Lemna 0.92 mg/l. Environmental fate: Animals:The principal metabolic pathway in rats and rabbits was o- or p-hydroxylation, followed by glucuronidation (R. N. Waring, Xenobiotica, 1973, 3, 65-71).Soil:DT50 in soil c. 24 h. Koc 373.Plant:In plants, undergoes oxidation to the sulfoxide, but not further to the sulfone.
Transport Information
Hazard Class:III (Slightly hazardous)

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