The CAS Registry Mumber 137644-74-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,6,4 and 4 respectively; the second part has 2 digits, 7 and 4 respectively. Calculate Digit Verification of CAS Registry Number 137644-74: (8*1)+(7*3)+(6*7)+(5*6)+(4*4)+(3*4)+(2*7)+(1*4)=147 147 % 10 = 7 So 137644-74-7 is a valid CAS Registry Number.
Get Best Price for137644-74-7Dithiocarbonic acid S-methyl ester O-((5S,5aS,9aS)-6,6,9a-trimethyl-4,5,5a,6,7,8,9,9a-octahydro-naphtho[1,2-c]furan-5-yl) ester