31321-37-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31321-37-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,3,2 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31321-37:
(7*3)+(6*1)+(5*3)+(4*2)+(3*1)+(2*3)+(1*7)=66
66 % 10 = 6
So 31321-37-6 is a valid CAS Registry Number.