20756-70-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20756-70-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,5 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20756-70:
(7*2)+(6*0)+(5*7)+(4*5)+(3*6)+(2*7)+(1*0)=101
101 % 10 = 1
So 20756-70-1 is a valid CAS Registry Number.