coumarin Products
company: chemshine co. coumarin , aromatic chemicals , aromatic
2H-1-Benzopyran-2-one CAS No. 91-64-5 Description: white crystals or crystal powder Odour: of black fragrant peas Molecular Formula: C9H6O2 Molecular Weigh: 146.15 Application: fla
company: Beijing Medicine Chemical Trading Co., Ltd coumarin
CAS NO.91-64-5 Chemical formula C9H6O2
company: Zhejiang Medicines & Health Products I/E Co.,Ltd coumarin , dihydrocoumarin
