212077-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212077-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,0,7 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 212077-57:
(8*2)+(7*1)+(6*2)+(5*0)+(4*7)+(3*7)+(2*5)+(1*7)=101
101 % 10 = 1
So 212077-57-1 is a valid CAS Registry Number.