299911-78-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299911-78-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,1 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 299911-78:
(8*2)+(7*9)+(6*9)+(5*9)+(4*1)+(3*1)+(2*7)+(1*8)=207
207 % 10 = 7
So 299911-78-7 is a valid CAS Registry Number.