2978-59-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2978-59-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,7 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2978-59:
(6*2)+(5*9)+(4*7)+(3*8)+(2*5)+(1*9)=128
128 % 10 = 8
So 2978-59-8 is a valid CAS Registry Number.