1381785-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1381785-65-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,1,7,8 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1381785-65:
(9*1)+(8*3)+(7*8)+(6*1)+(5*7)+(4*8)+(3*5)+(2*6)+(1*5)=194
194 % 10 = 4
So 1381785-65-4 is a valid CAS Registry Number.