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4-Methyl-6-(phenylthio-methyl)-2-pyron is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

50405-89-5

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50405-89-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50405-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,4,0 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 50405-89:
(7*5)+(6*0)+(5*4)+(4*0)+(3*5)+(2*8)+(1*9)=95
95 % 10 = 5
So 50405-89-5 is a valid CAS Registry Number.

50405-89-5Relevant academic research and scientific papers

The chemistry of antimicrobially active 1-hydroxy-2-pyridones

Lohaus,Dittmar

, p. 1311 - 1316 (2007/10/02)

The unsaturated δ-keto esters obtained by condensation of acid chlorides with esters of di- or trialkyl-acrylic acids can be cyclized with hydroxylamine to yield 1-hydroxy-2-pyridones. However, in many cases a two-steps synthesis may be of advantage in preparative respect, the ketoesters being cyclized to 2-pyrones, which then are reacted with hydroxylamine in the presence of certain bases to give. The hydroxy-pyridones show pronounced antifungal activity in vitro as well as in experimental guinea pig dermatophytosis.

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