The CAS Registry Mumber 42501-49-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,0 and 1 respectively; the second part has 2 digits, 4 and 9 respectively. Calculate Digit Verification of CAS Registry Number 42501-49: (7*4)+(6*2)+(5*5)+(4*0)+(3*1)+(2*4)+(1*9)=85 85 % 10 = 5 So 42501-49-5 is a valid CAS Registry Number.
Get Best Price for42501-49-5Dithiocarbonic acid S-methyl ester O-((1R,2aR,4aS,6S,6aR,6bS)-6-methylsulfanylthiocarboxyoxy-1,2,2a,4a,5,6,6a,6b-octahydro-cyclopenta[cd]pentalen-1-yl) ester