30719-94-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30719-94-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,7,1 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 30719-94:
(7*3)+(6*0)+(5*7)+(4*1)+(3*9)+(2*9)+(1*4)=109
109 % 10 = 9
So 30719-94-9 is a valid CAS Registry Number.