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(+/-)-2,3,4,5-Tetrahydro-7-methoxy-2,3,3,9-tetramethylnaphtho<1,2-b>furan-4,5-dione <(+/-)-Trypethelone Methyl Ether> is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

89887-34-3

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89887-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89887-34-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,8 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89887-34:
(7*8)+(6*9)+(5*8)+(4*8)+(3*7)+(2*3)+(1*4)=213
213 % 10 = 3
So 89887-34-3 is a valid CAS Registry Number.

89887-34-3Downstream Products

89887-34-3Relevant academic research and scientific papers

A Simple Conversion of 2-Methoxynaphthoguinones to 2,3,4,5-Tetrahydronaphthofuran-4,5-diones. Application to the Synthesis of (+/-)-Trypethelones

Guay, Vincent,Brassard, Paul

, p. 1853 - 1857 (2007/10/02)

Structures proposed for trypethelone, O-methyltrypethelone, and O-methyl-8-methoxytrypethelone have been confirmed by synthesis.The required naphthoquinone substrates were prepared regiospecifically in one step by using vinylogous ketene acetals and then converted to the desired products essentially in a novel one-flask procedure.

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