for the following products
4-Methylumbelliferone | 7-Hydroxy-4-methyl coumarin / 4-methyl umbelliferone | 7-Hydroxy-4-methylcoumarin | Coumarin 4 | Hymecromone and 7-Hydroxy-4-methyl-2H-1-benzopyran-2-one
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...
