310897-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 310897-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,0,8,9 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 310897-19:
(8*3)+(7*1)+(6*0)+(5*8)+(4*9)+(3*7)+(2*1)+(1*9)=139
139 % 10 = 9
So 310897-19-9 is a valid CAS Registry Number.