31541-85-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31541-85-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,4 and 1 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31541-85:
(7*3)+(6*1)+(5*5)+(4*4)+(3*1)+(2*8)+(1*5)=92
92 % 10 = 2
So 31541-85-2 is a valid CAS Registry Number.