for the following products
3b,5-Dihydroxy-6b,7b;15b,16b-dimethylene-5b-androstan-17-one | 6beta,7beta,15beta,16beta-Dimethylene-3beta,5beta-dihydroxyandrostan-17-one and 17H-Dicyclopropa[6,7:15,16]cyclopenta[a]phenanthren-17-one,octadecahydro-3,5-dihydroxy-10,13-dimethyl-,(3S,5R,6R,7R,8R,9S,10R,13S,14S,15S,16S)-
Located in Hangzhou National Hi-Tech Industrial Development Zone, Hangzhou Zhongqi Chem Co.,Ltd is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries.
Our advantage :
1.We do not simply provide chemicals, we provide chemical solutions and expertise;
2.We have trained, highly effective team to solve the problem at the first time;
3.Our QMS (quality management system) ensures the product quality strictly;
4.Strong rese...
