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2',5,5,5',5'-Pentamethyl-2-methyliden-1,1'-bi(cycloheptan)-3,3',6,6'-tetron is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77142-99-5

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77142-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77142-99-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,4 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77142-99:
(7*7)+(6*7)+(5*1)+(4*4)+(3*2)+(2*9)+(1*9)=145
145 % 10 = 5
So 77142-99-5 is a valid CAS Registry Number.

77142-99-5Upstream product

77142-99-5Downstream Products

77142-99-5Relevant academic research and scientific papers

1?,?*-Induced Photocleavage of γ,δ-Epoxy-eucarvone

Tsutsumi, Kentaro,Wolf, Hans Richard

, p. 2370 - 2374 (2007/10/02)

On 1?,Π*-excitation 1 undergoes cleavage of the C,C-oxirane bond (1 -> c) and isomerizes to the bicyclic dihydrofurane compound 5.In addition, 1 shows photocleavage of the C(γ),O-oxirane bond (1 -> d) and gives the isomers 2, 3, 6, 7 and 8.Furthermore, the cyclohexenone 9 and the cyclohexene-1,4-dione formed presumably via an intermediate 13, which could also arise from d.Besides these products the compounds 11 and 12 are obtained, which are photoproducts of 2.

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