145991-93-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145991-93-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,9,9 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 145991-93:
(8*1)+(7*4)+(6*5)+(5*9)+(4*9)+(3*1)+(2*9)+(1*3)=171
171 % 10 = 1
So 145991-93-1 is a valid CAS Registry Number.