1899809-50-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1899809-50-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,9,9,8,0 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1899809-50:
(9*1)+(8*8)+(7*9)+(6*9)+(5*8)+(4*0)+(3*9)+(2*5)+(1*0)=267
267 % 10 = 7
So 1899809-50-7 is a valid CAS Registry Number.