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Pesticides >> Insecticides >> Cartap

Cartap

Cartap98%TC
Cartap 50%SP

Insecticide
2-dimethylaminopropane-1,3-dithiol


Cartap


Cartap NOMENCLATURE
Common name cartap (BSI, E-ISO, (m) F-ISO, JMAF)
IUPAC name S,S'-(2-dimethylaminotrimethylene) bis(thiocarbamate)
Chemical Abstracts name S,S'-[2-(dimethylamino)-1,3-propanediyl] dicarbamothioate
CAS RN [15263-53-3] Development codes TI-1258 (Takeda)

cartap hydrochloride
Common name cartap hydrochloride
CAS RN [15263-52-2] cartap monohydrochloride; [22042-59-7] cartap, unspecified hydrochloride EEC no. 239-309-2

Cartap PHYSICAL CHEMISTRY
Mol. wt. 237.3 M.f. C7H15N3O2S2

Cartap COMMERCIALISATION
History Insecticide reported by M. Sakai et al. (Jpn. J. Appl. Entomol. Zool., 1967, 11, 125), its action and structure-activity relationships reviewed (K. Konishi, Pestic. Chem. [Congr. Pestic. Chem., 2nd, 1971], 1972, 1, 179; M. Sakai & Y. Sato, ibid., p. 445; M. Sakai, Jpn. Pestic. Inf., 1971, No. 6, p. 15; 1978, No. 34, p. 22). The hydrochloride introduced by Takeda Chemical Industries, Ltd and first marketed in Japan in 1967. Patents GB 1126204; US 3332943; FR 1452338 Manufacturers Hunan Linxiang; Kuo Ching; Takeda

Cartap APPLICATIONS
Biochemistry Analogue or propesticide of the natural toxin nereistoxin. Nicotinergic acetylcholine blocker, causing paralysis by blocking cholinergic transmissions in the central nervous systems of insects. Mode of action Systemic insecticide with stomach and contact action. Insects discontinue feeding, and die of starvation.

cartap hydrochloride
Uses Cartap hydrochloride is used, at c. 0.4-1.0 kg/ha, for control of chewing and sucking insects (particularly Lepidoptera and Coleoptera), at almost all stages of development, on many crops, including rice (Chilo suppressalis, Cnaphalocrocis medinalis, Lissorhoptrus oryzophilus and rice-leaf beetle), potatoes, cabbage and other vegetables (Agromyzidae, Leptinotarsa decemlineata and Plutella xylostella); also on soya beans, peanuts, sunflowers, maize, sugar beet, wheat, pearl barley, pome fruit, stone fruit, citrus fruit, vines, chestnuts, ginger, tea, cotton, and sugar cane. Phytotoxicity May be phytotoxic to cotton, tobacco, and apples, under certain soil and climatic conditions. Formulation types DP; GR; SP. Compatibility Not compatible with pesticides which are alkaline. Selected tradenames: 'Padan' (Takeda); 'Sanvex' (Takeda, Nagarjuna Agrichem)

Cartap OTHER TRADENAMES
'Caldan' (Takeda, Dhanuka); 'Pilartap' (Pilarquim); 'Vicarp' (Vipesco) mixtures: 'Vipami' (+ isoprocarb) (Vipesco)

cartap hydrochloride
'Cadan' (Takeda); 'Patap' (Takeda); 'Thiobel' (Takeda); 'Vegetox' (Takeda); 'Kritap' (Krishi Rasayan)

ANALYSIS
Product analysis by colorimetry (CIPAC Handbook, 1988, D, 24). Residue analysis by glc or by polarography (K. Nishi et al., Anal. Methods Pestic. Plant Growth Regul., 1973, 7, 371).

MAMMALIAN TOXICOLOGY
Reviews FAO/WHO 74 (see part 2 of the Bibliography).


ADI (JMPR) ADI withdrawn [1995].

hydrochloride
Oral Acute oral LD50 for male rats 345, female rats 325, male mice 150, female mice 154 mg/kg. Skin and eye Acute percutaneous LD50 for mice >1000 mg/kg; no irritation to skin or eyes in rabbits. Inhalation LC50 (6 h) for rats >0.54 mg/l. NOEL (2 y) for rats 10 mg/kg b.w. daily; (1.5 y) for mice 20 mg/kg b.w. daily. Toxicity class WHO (a.i.) II; EPA (formulation) II EC hazard Xn; R21/22

Cartap ECOTOXICOLOGY
cartap hydrochloride
Fish LC50 for carp 1.6 mg/l (24 h) and 1.0 mg/l (48 h). Other aquatic spp. LC50 (24 h) for Moina macrocopa 12.5-25 mg/l. Bees Moderately toxic to honeybees.

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