213682-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213682-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,6,8 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 213682-39:
(8*2)+(7*1)+(6*3)+(5*6)+(4*8)+(3*2)+(2*3)+(1*9)=124
124 % 10 = 4
So 213682-39-4 is a valid CAS Registry Number.