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241. Menthyl acetate was obtained in reaction of the result compound with acetic anhydride, with yield up to 90%.

242. Reaction mechanism was studied and reaction principles to polymerize vinyl acetate were also introduced briefly.

243. Result: In optimal conditions, the yield of Sec - butyl acetate was over 93.8 %.

244. The yield of anhydrous plumbous acetate is also very high.

245. Inhibitory effect of medroxyprogesterone acetate on angiogenesis induced by malignant neoplasm.

246. The antioxidant of Terminalia chebula Rotz are distilled by the ultrasonic extraction method with acetone, ethyl acetate and 85% ethanol.

247. Solvents of dissolution PS plastic foam are mix solvents of dimethylbenzene, ethyl acetate and butyl alcohol.

248. Try to avoid retinol, retinyl palmitate and retinyl acetate, which may increase the risk of hip fracture and certain birth defects when taken at levels exceeding 10, 000 IUs.

249. Objective : To study hydrolysis of vitamin E acetate cholesterol esterase in the reversed micelle systems.

250. Lead Zirconate Titanate ceramic material has been prepared by sol-gel method with Titanium butoxide, Zirconium alkoxide and anhydrous lead acetate.

251. Methods: 30 cases of EM were administered medroxyprogesterone acetate after conservative surgery.

252. This paper studied the synthesis of hexyl acetate with acetic acid and hexyl alcohol as reactants and sodium bisulfate as catalyst.

253. The ferric sulfate modified PVA UF membranes[sentencedict.com], PVA-CA (cellulose acetate) blend UF membrane and the metal chloride modified PVA-CA blend UF membrane were prepared for the first time by phase inversion.

254. Objective: To study the effect of depo medroxyprogesterone acetate(DMPA, Depo Genston)on bone metabolism in women.

255. Acrylic dispersion was prepared by adding water into polyacrylic solution which was carried out in the present of propylene glycol monomethyl ether acetate using di-tert-butyl peroxide as initiator.

256. Ultraviolet spectrophotometry was used to measure chlorhexidine acetate content in disinfectant solution.

257. Aim To study the toxicity of the lead acetate on the fertilization ability of sperm and the development of early embryo in mice.

258. Benzyl acetate has been synthesised by the direct reaction of benzyl chloride and sodium acetate solution catalyzed by triphase transfer catalyst.

259. Methods Prednisone acetate, banocide, amoxicillin and nutrition through vein were conducted on the Chyluria patients; the clinical effect was observed.

260. Cellulose Acetate The first commercial membranes for reverse osmosis and ultrafiltration were made from cellulose acetate.

261. Phenoxyacetophenone could be prepared from potassium phenolate and m bromoacetophenone via Ullmann reaction catalyzed by copper acetate in high yields.

262. Methods: HPCE analysis was carried out on the ethyl acetate extracts of 18 Selaginella plants (from 11 species),(sentencedict.com) using MECC separation model.

263. We mainly use cotton linter as raw material to produce cotton linters pulp, for industrial production of acetate, ether and nitrocellulose.

264. In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration.

265. The ethyl acetate and n-butanol extraction were chromatographed on silica gel column, polyamide column, sephadex LH-20 column and preparing TLC, respectively.