1899-92-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1899-92-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,9 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1899-92:
(6*1)+(5*8)+(4*9)+(3*9)+(2*9)+(1*2)=129
129 % 10 = 9
So 1899-92-9 is a valid CAS Registry Number.