213971-10-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213971-10-9 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 1 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 213971-10:
(8*2)+(7*1)+(6*3)+(5*9)+(4*7)+(3*1)+(2*1)+(1*0)=119
119 % 10 = 9
So 213971-10-9 is a valid CAS Registry Number.