2007917-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2007917-41-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 2,0,0,7,9,1 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2007917-41:
(9*2)+(8*0)+(7*0)+(6*7)+(5*9)+(4*1)+(3*7)+(2*4)+(1*1)=139
139 % 10 = 9
So 2007917-41-9 is a valid CAS Registry Number.