158522-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158522-69-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,5,2 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 158522-69:
(8*1)+(7*5)+(6*8)+(5*5)+(4*2)+(3*2)+(2*6)+(1*9)=151
151 % 10 = 1
So 158522-69-1 is a valid CAS Registry Number.