128992-04-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128992-04-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,9 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128992-04:
(8*1)+(7*2)+(6*8)+(5*9)+(4*9)+(3*2)+(2*0)+(1*4)=161
161 % 10 = 1
So 128992-04-1 is a valid CAS Registry Number.