299947-38-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299947-38-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,4 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 299947-38:
(8*2)+(7*9)+(6*9)+(5*9)+(4*4)+(3*7)+(2*3)+(1*8)=229
229 % 10 = 9
So 299947-38-9 is a valid CAS Registry Number.