1184989-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1184989-56-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,4,9,8 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1184989-56:
(9*1)+(8*1)+(7*8)+(6*4)+(5*9)+(4*8)+(3*9)+(2*5)+(1*6)=217
217 % 10 = 7
So 1184989-56-7 is a valid CAS Registry Number.