299920-01-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299920-01-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,2 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 299920-01:
(8*2)+(7*9)+(6*9)+(5*9)+(4*2)+(3*0)+(2*0)+(1*1)=187
187 % 10 = 7
So 299920-01-7 is a valid CAS Registry Number.