The CAS Registry Mumber 78681-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,6,8 and 1 respectively; the second part has 2 digits, 8 and 7 respectively. Calculate Digit Verification of CAS Registry Number 78681-87: (7*7)+(6*8)+(5*6)+(4*8)+(3*1)+(2*8)+(1*7)=185 185 % 10 = 5 So 78681-87-5 is a valid CAS Registry Number.
Get Best Price for78681-87-5Phosphoric acid (3aR,4R,6R,6aR)-6-(2-amino-6-oxo-1,6-dihydro-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-ylmethyl ester bis-(2,2,2-tribromo-ethyl) ester