31042-67-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31042-67-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,4 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31042-67:
(7*3)+(6*1)+(5*0)+(4*4)+(3*2)+(2*6)+(1*7)=68
68 % 10 = 8
So 31042-67-8 is a valid CAS Registry Number.