331237-51-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331237-51-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,2,3 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 331237-51:
(8*3)+(7*3)+(6*1)+(5*2)+(4*3)+(3*7)+(2*5)+(1*1)=105
105 % 10 = 5
So 331237-51-5 is a valid CAS Registry Number.