12770-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12770-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,7,7 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 12770-99:
(7*1)+(6*2)+(5*7)+(4*7)+(3*0)+(2*9)+(1*9)=109
109 % 10 = 9
So 12770-99-9 is a valid CAS Registry Number.