Lawesson's reagent, CAS 19172-47-5,Febuxostat,Rocuronium bromide, CAS 119302-91-9,5-HTP Chengdu Institute Of Chiral Material Medica Co.,Ltd. WEB:http://www.cicmmpharm.com TEL/FAX:86-28-66509872 SALES OFFICE:cicmm@cicmmpharm.com