As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

7-Dimethylamino-2,3-dihydro-1H-cyclopenta[c]chromen-4-one;7-(dimethylamino)-2,3-dihydrocyclopenta[c][1]benzopyran-4(1h)-one;Coumarin 138 7-(dimethylamino)-2,3-dihydro-cyclopenta[c][1]benzopyran-4(1h)-on;Sigma Coumarin 138; Coumarin 138, laser grade

We are a Union of chemistry in China, consists of chemists，engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

Our own factory produces direct sales with absolute price advantage Application:Pharmaceutical industry Transportation:By sea Port:Shanghai/tianjin

We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:light beige powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as pri

Coumarin 138 cas 62669-74-3Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

factory?direct?sale Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents

1.We have rich experience in the development and production 2.Our factory is in Shanghai of China,We have convenient traffic conditions.3.We have advanced testing equipment and shipping line. Package:5g, 10g, 50g, 100g, 1kg Application:Pharmaceutical