213978-49-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213978-49-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,9,7 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 213978-49:
(8*2)+(7*1)+(6*3)+(5*9)+(4*7)+(3*8)+(2*4)+(1*9)=155
155 % 10 = 5
So 213978-49-5 is a valid CAS Registry Number.