1189959-84-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1189959-84-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,9,9,5 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1189959-84:
(9*1)+(8*1)+(7*8)+(6*9)+(5*9)+(4*5)+(3*9)+(2*8)+(1*4)=239
239 % 10 = 9
So 1189959-84-9 is a valid CAS Registry Number.