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104599-83-9

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104599-83-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104599-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,5,9 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 104599-83:
(8*1)+(7*0)+(6*4)+(5*5)+(4*9)+(3*9)+(2*8)+(1*3)=139
139 % 10 = 9
So 104599-83-9 is a valid CAS Registry Number.

104599-83-9Downstream Products

104599-83-9Relevant articles and documents

Cycloaracylation of Enamines, I. - Synthesis of 4-Quinolone-3-carboxylic Acids

Grohe, Klaus,Heitzer, Helmut

, p. 29 - 37 (2007/10/02)

Starting with o-halobenzoyl chlorides 4 and open-chain secondary enamines 5, a new synthesis of 4-quinolone-3-carboxylic acids 12 is described.The reaction of 7-haloquinolone-3-carboxylic acids 12a-k with aliphatic amines 14 produces highly active antibacterial 7-aminoquinolone-3-carboxylic acids 15.The main product of the 1-cyclopropyl series, "ciprofloxacin" (15a), is being developed as a broad-spectrum chemotherapeutic agent.

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