199876-50-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199876-50-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,8,7 and 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 199876-50:
(8*1)+(7*9)+(6*9)+(5*8)+(4*7)+(3*6)+(2*5)+(1*0)=221
221 % 10 = 1
So 199876-50-1 is a valid CAS Registry Number.