101770-20-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101770-20-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,7,7 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 101770-20:
(8*1)+(7*0)+(6*1)+(5*7)+(4*7)+(3*0)+(2*2)+(1*0)=81
81 % 10 = 1
So 101770-20-1 is a valid CAS Registry Number.