158220-65-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158220-65-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,2,2 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 158220-65:
(8*1)+(7*5)+(6*8)+(5*2)+(4*2)+(3*0)+(2*6)+(1*5)=126
126 % 10 = 6
So 158220-65-6 is a valid CAS Registry Number.