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2,4-Cyclohexadien-1-one, 5-[3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-4-pentenyl]-6,6-dimethoxy- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138644-20-9

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138644-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138644-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,4 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 138644-20:
(8*1)+(7*3)+(6*8)+(5*6)+(4*4)+(3*4)+(2*2)+(1*0)=139
139 % 10 = 9
So 138644-20-9 is a valid CAS Registry Number.

138644-20-9Downstream Products

138644-20-9Relevant academic research and scientific papers

Synthesis of Angularly and Linearly Fused Triquinanes via the Common Intramolecular Diels-Alder Adduct of a Masked o-Benzoquinone

Hwang, Jenn-Tsang,Liao, Chun-Chen

, p. 6583 - 6586 (2007/10/02)

Angularly and linearly fused triquinanes 10 and 15 were synthesized from catechol derivative 1 via a common masked o-benzoquinone 4 in 12 and 13 steps respectively.Intramolecular Diels-Alder reaction, photochemical oxa-di-?-methane rearrangement, and redu

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