21546-37-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21546-37-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,5,4 and 6 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 21546-37:
(7*2)+(6*1)+(5*5)+(4*4)+(3*6)+(2*3)+(1*7)=92
92 % 10 = 2
So 21546-37-2 is a valid CAS Registry Number.