2,3-dimethoxy-12-methyl-(4br,11bt)-5,6,11b,12-tetrahydro-4bH-[1,3]dioxolo[4',5':4,5]benzo[1,2-c]phenanthridin-13-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 56221-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,2,2 and 1 respectively; the second part has 2 digits, 6 and 5 respectively. Calculate Digit Verification of CAS Registry Number 56221-65: (7*5)+(6*6)+(5*2)+(4*2)+(3*1)+(2*6)+(1*5)=109 109 % 10 = 9 So 56221-65-9 is a valid CAS Registry Number.