148989-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 148989-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,9,8 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 148989-23:
(8*1)+(7*4)+(6*8)+(5*9)+(4*8)+(3*9)+(2*2)+(1*3)=195
195 % 10 = 5
So 148989-23-5 is a valid CAS Registry Number.