391879-64-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 391879-64-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,1,8,7 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 391879-64:
(8*3)+(7*9)+(6*1)+(5*8)+(4*7)+(3*9)+(2*6)+(1*4)=204
204 % 10 = 4
So 391879-64-4 is a valid CAS Registry Number.