138858-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138858-44-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,5 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138858-44:
(8*1)+(7*3)+(6*8)+(5*8)+(4*5)+(3*8)+(2*4)+(1*4)=173
173 % 10 = 3
So 138858-44-3 is a valid CAS Registry Number.