trans-Cinnamic acid CAS 140-10-3 rheumatic tshuaj ketoprofen, thiab lwm yam), kho accelerators.
2-Methoxy-5-nitropyridine CAS 5446-92-4 yog tau los ntawm etherification ntawm 2-chloro-5-nitropyridine. Sodium methoxide tau ntxiv dropwise rau qhov sib tov ntawm 2-chloro-5-nitropyridine thiab methanol nyob rau hauv stirring, thiab muaju tau precipitated nyob rau hauv crushed dej khov tom qab ntxiv sulfur rau 1 h. Lim, qhuav, thiab recrystallize nrog methanol kom tau cov khoom tiav. Cov txiaj ntsig yog 92%.
N-Iodosuccinimide CAS 516-12-1 yog ib rab koob dawb zoo li siv lead ua, decomposes hauv kev sib cuag nrog dej, soluble hauv dej, methanol, dioxane, thiab insoluble hauv carbon tetrachloride. Cov nyiaj ntsev ntawm succinimide tuaj yeem tau txais los ntawm thawj zaug ua rau cov tshuaj aqueous ntawm succinimide nrog nyiaj oxide, thiab tom qab ntawd rov ua dua nrog iodine thiab lwm yam. N-Iodosuccinimide tuaj yeem siv los ua reagent rau iodide aldehydes thiab ketones.
4-Chlorobenzoic acid CAS 74-11-3 yog cov hmoov dawb dawb, m.p.239ï½ 241âជន, soluble hauv methanol, absolute ethanol thiab ether, me ntsis soluble hauv dej, toluene thiab 95% ethanol.
Peb yog cov chaw tsim khoom ntawm Methyl cinnamate CAS 103-26-4 hauv Suav teb.Methyl cinnamate CAS 103-26-4 muaj nyob rau hauv Tshuag thiab tuaj yeem xa tuaj sai.COA, MSDS thiab TDS ntawm Methyl cinnamate CAS 103-26-4.
N-Ethyl-N-hydroxyethylaniline CAS 92-50-2 Yellow rau xim av muaju. Soluble hauv cawv, ether, chloroform thiab inorganic acid, insoluble hauv dej.
