317822-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 317822-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,7,8,2 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 317822-52:
(8*3)+(7*1)+(6*7)+(5*8)+(4*2)+(3*2)+(2*5)+(1*2)=139
139 % 10 = 9
So 317822-52-9 is a valid CAS Registry Number.