91978-48-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91978-48-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,7 and 8 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91978-48:
(7*9)+(6*1)+(5*9)+(4*7)+(3*8)+(2*4)+(1*8)=182
182 % 10 = 2
So 91978-48-2 is a valid CAS Registry Number.