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4-Isopropyl-1-(4-methoxy-phenyl)-cyclopenta[c]pyran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

219545-25-2

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219545-25-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219545-25-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,5,4 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 219545-25:
(8*2)+(7*1)+(6*9)+(5*5)+(4*4)+(3*5)+(2*2)+(1*5)=142
142 % 10 = 2
So 219545-25-2 is a valid CAS Registry Number.

219545-25-2Downstream Products

219545-25-2Relevant academic research and scientific papers

Cyclopenta[c]pyrans from 6-oxo-6H-1,3,4-oxadiazines

Christl, Manfred,Bien, Notker,Bodenschatz, Gabriele,Feineis, Erich,Hegmann, Joachim,Hofmann, Carola,Mertelmeyer, Stefan,Ostheimer, Joachim,Sammtleben, Frank,Wehner, Susanne,Peters, Eva-Maria,Peters, Karl,Pfeiffer, Matthias,Stalke, Dietmar

, p. 2387 - 2388 (2007/10/03)

Prepared in a three-step sequence including acid-catalysed cycloaddition of cyclopentadiene to 6-oxo-6H-1,3,4-oxadiazines, dehydrogenation with DDQ of the dihydro-α-pyrones formed and reduction of the resulting α-pyrones with DIBAL-H, 1,4-disubstituted cy

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