161902-50-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161902-50-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,9,0 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 161902-50:
(8*1)+(7*6)+(6*1)+(5*9)+(4*0)+(3*2)+(2*5)+(1*0)=117
117 % 10 = 7
So 161902-50-7 is a valid CAS Registry Number.