Shanghai new molecular sieve Ltd. - sieve CAS: 4487-59-6,2- bromo-5-nitropyridine 2-Bromo-5-nitropyridine CAS: 28978-02-1, Daji glycosides standard | reference? CAS: 39806-90-1,4- iodo-1-methyl -1H- pyrazole yiyang molecular sieves, 97% CAS: 6651-43-0,1- (three) -1,3-butadiene CAS : 4101-68-2,1 molecular sieve, 10- dibromodecane Dibromodecane CAS: 1676-90-0, tert-butoxycarbonyl group -L- aspartic acid-4-tert-butyl ester CAS: 4688-76-0 Yueyang molecular sieves, 2- biphenylboronic acid, 97% CAS: 123-01-3, n-dodecylbenzene, 98% CAS: 1161-13-3 Chenzhou molecular sieves, N- benzyloxycarbonyl -L- phenylalanine N - (Carbobenzyloxy) -L-phenylalanine CAS: 79069-15-1, N-Boc- (S) -2- amino-3-benzyloxy-1-propanol, 99% CAS: 87-32-1, N - acetyl -DL- tryptophan, 98% CAS: 47375-34-8,99% CAS: 402-49-3,4- (trifluoromethyl) benzyl bromide Shanghai Ltd. new molecular sieve zeolite - 1, The solvent is added (anhydrous methanol) the solvent tubes, molecular sieve drying tube and special cap installed on anhydrous methanol reagent bottles, automatic titration to drain the pool to join in 20 ~ 50ml of anhydrous methanol, at least to ensure electrode and a liquid immersion tube. The amount of methanol is added depends on the size of the titration cell, and also depends on the size of the sample volume. After the addition of methanol, the titration cell immediately closed, which aims to enter the titration cell of the atmospheric moisture can not be avoided to maintain a minimum amount. Also, please turn stirring. 2, pre-titration Xiaogan sieve, sieve, sieve by new Shanghai there are new molecular sieve Limited. Shanghai new molecular sieve Limited (www.molsionms.com) strong, credible, in Shanghai's Songjiang District elemental industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the new molecular sieves, and you hand in hand into the brilliant, for a better future!