1221896-00-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1221896-00-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,8,9 and 6 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1221896-00:
(9*1)+(8*2)+(7*2)+(6*1)+(5*8)+(4*9)+(3*6)+(2*0)+(1*0)=139
139 % 10 = 9
So 1221896-00-9 is a valid CAS Registry Number.