1655-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1655-88-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,5 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1655-88:
(6*1)+(5*6)+(4*5)+(3*5)+(2*8)+(1*8)=95
95 % 10 = 5
So 1655-88-5 is a valid CAS Registry Number.