438454-70-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 438454-70-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,4,5 and 4 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 438454-70:
(8*4)+(7*3)+(6*8)+(5*4)+(4*5)+(3*4)+(2*7)+(1*0)=167
167 % 10 = 7
So 438454-70-7 is a valid CAS Registry Number.