158734-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158734-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,7,3 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 158734-80:
(8*1)+(7*5)+(6*8)+(5*7)+(4*3)+(3*4)+(2*8)+(1*0)=166
166 % 10 = 6
So 158734-80-6 is a valid CAS Registry Number.