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| CAS No.: | 94593-91-6 |
|---|---|
| Name: | Cinosulfuron |
| Article Data: | 6 |
| Molecular Structure: | |
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| Formula: | C15H19N5O7S |
| Molecular Weight: | 413.411 |
| Synonyms: | CGA 142464;Dimetrasulfuron;Set-off; |
| Density: | 1.415 g/cm3 |
| Melting Point: | 140-145 °C |
| Boiling Point: | 224°C (rough estimate) |
| Flash Point: | 144°C |
| Appearance: | colorless crystalline powder |
| PSA: | 159.24000 |
| LogP: | 1.96910 |
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Chemistry
IUPAC Name: 1-(4,6-dimethoxy-1,3,5-triazin-2-yl)-3-[2-(2-methoxyethoxy)phenyl]sulfonylurea
Synonyms: Setoff;1-(4,6-dimethoxy-1,3,5-triazin-2-yl)-3-(2-(2-methoxyethoxy)phenylsulfonyl)ur;cga142464;methoxyethoxy)-;n-(((4,6-dimethoxy-1,3,5-triazin-2-yl)amino)carbonyl)-2-(2-benzenesulfonamid;3-(4-6-dimethoxy-1,3,5-triazin-2-yl)-1-[2-(2-methoxyethoxy)-phenylsulfonyl]-urea;Cinosulfuron;Cinosulfuron Pestanal
CAS: 94593-91-6
MF: C15H19N5O7S
MW: 413.41
MS: .gif)
Product Categories: Cinosulfuron (94593-91-6) belongs to Herblcide ; Alpha sort ;C ; CAlphabetic ; CI - CLPesticides&Metabolites ; Herbicides ; Pesticides&Metabolites ; Urea structure
Mol File: 94593-91-6.mol
Surface Tension: 62.7 dyne/cm
Density: 1.415 g/cm3
Flash Point: °C
Enthalpy of Vaporization: kJ/mol
Boiling Point: °C at 760 mmHg
Vapour Pressure: mmHg at 25°C
Mp : 140-145°C
Storage temp: 0-6°C
Uses
Cinosulfuron (94593-91-6) is a biochemistry Branched chain amino acid synthesis (ALS or AHAS) inhibitor. Acts by inhibiting biosynthesis of the essential amino acids valine and isoleucine, hence stopping cell division and plant growth. Crop selectivity derives from plant metabolism both by homoglutathione conjugation and by de-esterification (M. K. Koeppe & H. M. Brown, Agro-Food-Industry, 6, 9-14 (1995)). Uses Used post-emergence for control of important broad-leaved weeds, such as cocklebur, pigweed, sunflower and annual morning glory, in soya beans and peanuts. Active at 9-13 g/ha. Formulation types WG. Selected tradenames: 'Classic' (Du Pont); 'Darban' (IPESA); 'Sponsor' (Reposo)
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | oral | > 10368mg/kg (10368mg/kg) | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S165, 1992. | |
| quail | LD50 | oral | > 2gm/kg (2000mg/kg) | Pesticide Manual. Vol. 9, Pg. 174, 1991. | |
| rat | LC50 | inhalation | > 5574mg/m3/4H (5574mg/m3) | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S165, 1992. | |
| rat | LD50 | oral | > 10368mg/kg (10368mg/kg) | Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 17, Pg. S165, 1992. | |
| rat | LD50 | skin | > 5gm/kg (5000mg/kg) | Pesticide Manual. Vol. 9, Pg. 174, 1991. |
Safety Profile
mammalian toxicology
Oral Acute oral LD50 for rats 4102 mg/kg. Skin and eye Acute percutaneous LD50 for rabbits >2000 mg/kg. Not a skin irritant or eye irritant (rabbits). Not a skin sensitiser (guinea pigs). Inhalation LC50 (4 h) for rats >5 mg/l air. NOEL (2 y) for rats 250 mg/kg diet (12.5 mg/kg daily); (1 y) for dogs 250 mg/kg diet (6.25 mg/kg daily). NOEL in: reproduction (2-generation) in rats 250 mg/kg diet; teratogenicity in rats 30, rabbits 15 mg/kg. ADI 0.020 mg/kg b.w. Toxicity class WHO (a.i.) III (Table 5); EPA (formulation) III
ecotoxicology
Birds Acute oral LD50 (14 d) for mallard ducks >2510 mg/kg. Dietary LC50 for mallard ducks and bobwhite quail >5620 ppm. Fish LC50 (96 h) for trout >1000, bluegill sunfish >100 mg/l. Daphnia LC50 (48 h) 1000 mg/l. Other aquatic spp. For Lemna gibba, EbC50 0.45 ppb, ErC50 45 mg/l, EC50 (frond counts) 0.27 ppb. LC50 for crayfish >1000 ppm. Bees LD50 (48 h) >12.5 mg/bee. Worms LC50 for earthworms (Eisenia foetida) >4050 mg/kg.
environmental fate
Animals Cinosulfuron (94593-91-6) is rapidly and extensively metabolised in the hen; 18 metabolites in the excreta were resolved by hplc. Soil/Environment In soil, Kd >1.60 (pH 4.5, 5.6% o.m.), 0.28 (pH 5.8, 4.3 % o.m.), <0.03 (pH 6.5, 2.1% o.m.), <0.03 (pH 6.6, 1.1 % o.m.).