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959903-54-9

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959903-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 959903-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,9,9,0 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 959903-54:
(8*9)+(7*5)+(6*9)+(5*9)+(4*0)+(3*3)+(2*5)+(1*4)=229
229 % 10 = 9
So 959903-54-9 is a valid CAS Registry Number.

959903-54-9Downstream Products

959903-54-9Relevant academic research and scientific papers

Design and synthesis via click chemistry of 8,9-anhydroerythromycin A 6,9-hemiketal analogues with anti-MRSA and -VRE activity

Sugawara, Akihiro,Sunazuka, Toshiaki,Hirose, Tomoyasu,Nagai, Kenichiro,Yamaguchi, Yukie,Hanaki, Hideaki,Sharpless, K. Barry,Omura, Satoshi

, p. 6340 - 6344 (2007)

An erythromycin analogue, 11,12-di-O-iso-butyryl-8,9-anhydroerythromycin A 6,9-hemiketal (1b), was found to be a potential anti-MRSA and anti-VRE agent. The use of copper catalyzed azide-acetylene cycloaddition, and click chemistry, readily provided 10 ty

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