2655-70-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2655-70-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,5 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2655-70:
(6*2)+(5*6)+(4*5)+(3*5)+(2*7)+(1*0)=91
91 % 10 = 1
So 2655-70-1 is a valid CAS Registry Number.