1020979-51-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1020979-51-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,9,7 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1020979-51:
(9*1)+(8*0)+(7*2)+(6*0)+(5*9)+(4*7)+(3*9)+(2*5)+(1*1)=134
134 % 10 = 4
So 1020979-51-4 is a valid CAS Registry Number.