1398178-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1398178-90-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,8,1,7 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1398178-90:
(9*1)+(8*3)+(7*9)+(6*8)+(5*1)+(4*7)+(3*8)+(2*9)+(1*0)=219
219 % 10 = 9
So 1398178-90-9 is a valid CAS Registry Number.