158568-26-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158568-26-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,5,6 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 158568-26:
(8*1)+(7*5)+(6*8)+(5*5)+(4*6)+(3*8)+(2*2)+(1*6)=174
174 % 10 = 4
So 158568-26-4 is a valid CAS Registry Number.