128588-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128588-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,8 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128588-56:
(8*1)+(7*2)+(6*8)+(5*5)+(4*8)+(3*8)+(2*5)+(1*6)=167
167 % 10 = 7
So 128588-56-7 is a valid CAS Registry Number.