781653-02-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 781653-02-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,1,6,5 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 781653-02:
(8*7)+(7*8)+(6*1)+(5*6)+(4*5)+(3*3)+(2*0)+(1*2)=179
179 % 10 = 9
So 781653-02-9 is a valid CAS Registry Number.