212613-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212613-09-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,6,1 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 212613-09:
(8*2)+(7*1)+(6*2)+(5*6)+(4*1)+(3*3)+(2*0)+(1*9)=87
87 % 10 = 7
So 212613-09-7 is a valid CAS Registry Number.