Medpep Co., Ltd., is dedicated to research, manufacture, and marketting versitile biochemicals and fine chemicals. Especially peptide reagents which include coupling reagents, N-protecting reagents, a...

permanent yellow,benzidine yellow,hansa yellow,everbright bronze red,Lithol Red...

Shanghai AOTAISI Chemical Import & Export Co. Ltd. was established in 1997 and specialized in trading chemical raw materials. We own independent import and export authorization in foreign trad...