81658-36-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81658-36-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,5 and 8 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81658-36:
(7*8)+(6*1)+(5*6)+(4*5)+(3*8)+(2*3)+(1*6)=148
148 % 10 = 8
So 81658-36-8 is a valid CAS Registry Number.