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2,8-Dimethyl-spiro[4.5]dec-7-ene-1,4-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128277-48-5

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128277-48-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128277-48-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,7 and 7 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128277-48:
(8*1)+(7*2)+(6*8)+(5*2)+(4*7)+(3*7)+(2*4)+(1*8)=145
145 % 10 = 5
So 128277-48-5 is a valid CAS Registry Number.

128277-48-5Downstream Products

128277-48-5Relevant academic research and scientific papers

Synthesis of 2-Methylene-1,3-dioxygenated Cyclopentanes and Cyclopentenes

Chantarasiri, Nuanphun,Dinprasert, Pranee,Thebtaranonth, Chachanat,Thebtaranonth, Yodhathai,Yenjai, Chavi

, p. 286 - 288 (1990)

Antracene adducts (4)-(6) are synthesized via a convenient general synthesis and subjected to a retro Diels-Alder reaction to furnish the corresponding 2-methylene-1,3-dioxygenated cyclopentenes and cyclopentanes (1)-(3) via either flash vaccum pyrolysis or room temperature silica gel-catalysed decomposition.

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