The CAS Registry Mumber 57765-01-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,6 and 5 respectively; the second part has 2 digits, 0 and 1 respectively. Calculate Digit Verification of CAS Registry Number 57765-01: (7*5)+(6*7)+(5*7)+(4*6)+(3*5)+(2*0)+(1*1)=152 152 % 10 = 2 So 57765-01-2 is a valid CAS Registry Number.
Get Best Price for57765-01-2(3aS,5aR,10bR,12bS)-3a-Ethyl-8-methoxy-6-methyl-4-oxo-3a,4,5,5a,6,11,12,12b-octahydro-1H-6,12a-diaza-indeno[7,1-cd]fluorene-5-carboxylic acid methyl ester