128347-64-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128347-64-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,4 and 7 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128347-64:
(8*1)+(7*2)+(6*8)+(5*3)+(4*4)+(3*7)+(2*6)+(1*4)=138
138 % 10 = 8
So 128347-64-8 is a valid CAS Registry Number.