934838-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 934838-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,4,8,3 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 934838-64:
(8*9)+(7*3)+(6*4)+(5*8)+(4*3)+(3*8)+(2*6)+(1*4)=209
209 % 10 = 9
So 934838-64-9 is a valid CAS Registry Number.