we are able to supply top quality items, aggressive price and greatest buyer assistance. Our destination is "You come here with difficulty and we offer you a smile to take away" for Boc-Met-OH, CAS 129938-20-1, Tos-Phe-OH, 4-Guanidinobenzoic Acid HCl,98.5% to 101.0% (calculated on the dried basis). We've been confident that there'll become a promising future and we hope we can have long lasting cooperation with consumers from all over the world. The product will supply to all over the world, such as Europe, America, Australia,Poland, Slovak Republic,Congo, Singapore.We have sufficient experience in producing products according to samples or drawings. We warmly welcome customers from home and abroad to visit our company, and to cooperate with us for a splendid future together.