291507-32-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291507-32-9 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, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 291507-32:
(8*2)+(7*9)+(6*1)+(5*5)+(4*0)+(3*7)+(2*3)+(1*2)=139
139 % 10 = 9
So 291507-32-9 is a valid CAS Registry Number.