401504-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 401504-52-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,1,5,0 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 401504-52:
(8*4)+(7*0)+(6*1)+(5*5)+(4*0)+(3*4)+(2*5)+(1*2)=87
87 % 10 = 7
So 401504-52-7 is a valid CAS Registry Number.