1275170-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1275170-21-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,5,1,7 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1275170-21:
(9*1)+(8*2)+(7*7)+(6*5)+(5*1)+(4*7)+(3*0)+(2*2)+(1*1)=142
142 % 10 = 2
So 1275170-21-2 is a valid CAS Registry Number.