291507-78-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291507-78-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,5,0 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 291507-78:
(8*2)+(7*9)+(6*1)+(5*5)+(4*0)+(3*7)+(2*7)+(1*8)=153
153 % 10 = 3
So 291507-78-3 is a valid CAS Registry Number.