Title: Triclopyr
CAS Registry Number: 55335-06-3
CAS Name: [(3,5,6-Trichloro-2-pyridinyl)oxy]acetic acid
Manufacturers' Codes: Dowco 233
Molecular Formula: C7H4Cl3NO3
Molecular Weight: 256.47
Percent Composition: C 32.78%, H 1.57%, Cl 41.47%, N 5.46%, O 18.71%
Literature References: Selective post-emergence herbicide. Prepn: L. D. Markley, US 3862952 (1975 to Dow). Activity: B. C. Byrd et al., Proc. South. Weed Sci. Soc. 28, 251 (1975). Acute toxicity: E. E. Kenaga, Down Earth 35, 25 (1979).
Properties: Fluffy solid, mp 148-150°. Vapor pressure at 25°: 1.26 ´ 10-6 mm Hg. pKa 2.68. Subject to photolysis. Soly in water at 25°: 440 mg/l. Soly at 25° (g/kg): acetone 989; 1-octanol 307. LD50 orally in rats: 713 mg/kg (Kenaga).
Melting point: mp 148-150°
pKa: pKa 2.68
Toxicity data: LD50 orally in rats: 713 mg/kg (Kenaga)
Derivative Type: Butoxyethyl Ester
CAS Registry Number: 64700-56-7
Trademarks: Garlon (Dow AgroSci.); Pathfinder (Dow AgroSci.); Remedy (Dow AgroSci.); Turflon (Dow AgroSci.)
Molecular Formula: C13H16Cl3NO4
Molecular Weight: 356.63
Percent Composition: C 43.78%, H 4.52%, Cl 29.82%, N 3.93%, O 17.95%
Derivative Type: Triethylamine Salt
CAS Registry Number: 57213-69-1
Trademarks: Grandstand (Dow AgroSci.)
Molecular Formula: C7H4Cl3NO3.C6H15N
Molecular Weight: 357.66
Percent Composition: C 43.66%, H 5.35%, Cl 29.74%, N 7.83%, O 13.42%
Use: Herbicide. |