Nomenclature:Common name tricyclazole (BSI, E-ISO, (m) F-ISO, ANSI) IUPAC name 5-methyl-1,2,4-triazolo[3,4-b][1,3]benzothiazole Chemical Abstracts name 5-methyl-1,2,4-triazolo[3,4-b]benzothiazole CAS RN [41814-78-2] EEC no. 255-559-5 Development codes EL-291 (Lilly) Physical Chemistry:Mol. wt. 189.2 M.f. C9H7N3S Form Crystalline solid. M.p. 184.6-187.2 B.p. 275 V.p. 5.86 ´ 10-4 ATXht981131 mPaATXht0 (20 , Knudsen-Effusion Weight Loss Method) KOW logP = 1.42 Henry 1.86 ´ 10-7 Pa m3 mol-1 (20 , TXht98124 calc.ATXht0 ) S.g./density 1.4 (20 ) Solubility In purified water 0.596 g/l (20 ). In acetone 13.8, methanol 26.5, xylene 4.9 (all in g/l, 20 ). Stability Stable at 52 (highest storage temperature tested). Relatively stable to ATXht981187 u.v.ATXht0 light