156306-86-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156306-86-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,3,0 and 6 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 156306-86:
(8*1)+(7*5)+(6*6)+(5*3)+(4*0)+(3*6)+(2*8)+(1*6)=134
134 % 10 = 4
So 156306-86-4 is a valid CAS Registry Number.