903212-54-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 903212-54-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,2,1 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 903212-54:
(8*9)+(7*0)+(6*3)+(5*2)+(4*1)+(3*2)+(2*5)+(1*4)=124
124 % 10 = 4
So 903212-54-4 is a valid CAS Registry Number.