for the following products
1,2-Bis(4-(5-methylbenzo[d]oxazol-2-yl)phenyl)ethene | 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bis[5-methyl-benzoxazole | 4,4'-bis-(5-Methylbenzoxazol-2-yl)stilbene | Optical brightener OB-2 and Fluorescent brightener agent ob-2
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...
