331837-85-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331837-85-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,8,3 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 331837-85:
(8*3)+(7*3)+(6*1)+(5*8)+(4*3)+(3*7)+(2*8)+(1*5)=145
145 % 10 = 5
So 331837-85-5 is a valid CAS Registry Number.