158335-66-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158335-66-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,3,3 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 158335-66:
(8*1)+(7*5)+(6*8)+(5*3)+(4*3)+(3*5)+(2*6)+(1*6)=151
151 % 10 = 1
So 158335-66-1 is a valid CAS Registry Number.