438542-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 438542-12-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,5,4 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 438542-12:
(8*4)+(7*3)+(6*8)+(5*5)+(4*4)+(3*2)+(2*1)+(1*2)=152
152 % 10 = 2
So 438542-12-2 is a valid CAS Registry Number.