57634-32-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57634-32-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,3 and 4 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57634-32:
(7*5)+(6*7)+(5*6)+(4*3)+(3*4)+(2*3)+(1*2)=139
139 % 10 = 9
So 57634-32-9 is a valid CAS Registry Number.