6978-24-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6978-24-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,7 and 8 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6978-24:
(6*6)+(5*9)+(4*7)+(3*8)+(2*2)+(1*4)=141
141 % 10 = 1
So 6978-24-1 is a valid CAS Registry Number.