1212918-86-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212918-86-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,9,1 and 8 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1212918-86:
(9*1)+(8*2)+(7*1)+(6*2)+(5*9)+(4*1)+(3*8)+(2*8)+(1*6)=139
139 % 10 = 9
So 1212918-86-9 is a valid CAS Registry Number.