31239-26-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31239-26-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,2,3 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 31239-26:
(7*3)+(6*1)+(5*2)+(4*3)+(3*9)+(2*2)+(1*6)=86
86 % 10 = 6
So 31239-26-6 is a valid CAS Registry Number.