521973-47-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 521973-47-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,1,9,7 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 521973-47:
(8*5)+(7*2)+(6*1)+(5*9)+(4*7)+(3*3)+(2*4)+(1*7)=157
157 % 10 = 7
So 521973-47-7 is a valid CAS Registry Number.