The CAS Registry Mumber 138057-90-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,0,5 and 7 respectively; the second part has 2 digits, 9 and 0 respectively. Calculate Digit Verification of CAS Registry Number 138057-90: (8*1)+(7*3)+(6*8)+(5*0)+(4*5)+(3*7)+(2*9)+(1*0)=136 136 % 10 = 6 So 138057-90-6 is a valid CAS Registry Number.
Get Best Price for138057-90-6Dicyclopenta[a,d]cyclooctene-4-carboxaldehyde,7-[(1S,2Z)-1,5-dimethyl-2,4-hexadienyl]-1,2,- 3,3a,6,6a,7,8,9,9a,10,10a-dodecahydro-1- hydroxy-1,9a-dimethyl-3-oxo-,(1R,3aS,6aS,- 7R,9aR,10aS)-