156338-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156338-97-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,3,3 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 156338-97:
(8*1)+(7*5)+(6*6)+(5*3)+(4*3)+(3*8)+(2*9)+(1*7)=155
155 % 10 = 5
So 156338-97-5 is a valid CAS Registry Number.