198903-94-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198903-94-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,9,0 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 198903-94:
(8*1)+(7*9)+(6*8)+(5*9)+(4*0)+(3*3)+(2*9)+(1*4)=195
195 % 10 = 5
So 198903-94-5 is a valid CAS Registry Number.