67637-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67637-73-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,3 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67637-73:
(7*6)+(6*7)+(5*6)+(4*3)+(3*7)+(2*7)+(1*3)=164
164 % 10 = 4
So 67637-73-4 is a valid CAS Registry Number.
InChI:InChI=1/C12H11NO3S/c1-3-4-13-6-9(12(15)16)10(14)8-5-7(2)17-11(8)13/h3,5-6H,1,4H2,2H3,(H,15,16)