68442-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68442-91-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,4,4 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 68442-91:
(7*6)+(6*8)+(5*4)+(4*4)+(3*2)+(2*9)+(1*1)=151
151 % 10 = 1
So 68442-91-1 is a valid CAS Registry Number.