103318-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103318-74-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,3,1 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 103318-74:
(8*1)+(7*0)+(6*3)+(5*3)+(4*1)+(3*8)+(2*7)+(1*4)=87
87 % 10 = 7
So 103318-74-7 is a valid CAS Registry Number.
103318-74-7Relevant articles and documents
Preparation of halogenated quinolonecarboxylic acids
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, (2008/06/13)
The invention is a process of making the compounds of the structure STR1 wherein R is alkyl with 1-3 carbon atoms, 2-fluoroethyl, phenyl or cyclopropyl, X is halogen, and X1 and X2 each independently is hydrogen or halogen. The compounds are useful as intermediates for quinoline antibacterial compounds.