213964-86-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213964-86-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,9,6 and 4 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 213964-86:
(8*2)+(7*1)+(6*3)+(5*9)+(4*6)+(3*4)+(2*8)+(1*6)=144
144 % 10 = 4
So 213964-86-4 is a valid CAS Registry Number.