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1,2-Dihydro-2-(4-nitrobenzyliden)-3H-naphtho<2,1-b>pyran-3-on is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

97004-54-1

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97004-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97004-54-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,0 and 4 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 97004-54:
(7*9)+(6*7)+(5*0)+(4*0)+(3*4)+(2*5)+(1*4)=131
131 % 10 = 1
So 97004-54-1 is a valid CAS Registry Number.

97004-54-1Downstream Products

97004-54-1Relevant academic research and scientific papers

Cumulated Ylides, XIV - Phosphacumulene Ylides - Building Blocks for the Synthesis of Heterocyclic Compounds

Bestmann, Hans Juergen,Schmid, Guenter,Sandmeier, Dieter,Schade, Gerold,Oechsner, Helmut

, p. 1709 - 1719 (2007/10/02)

Phosphacumulene ylides 1 and acidic compounds 4 combine to give phosphoranes 5, which cyclize by an intramolecular reaction (mostly Wittig reaction) with formation of heterocycles 7.

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