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4a,7b-dihydro-2a-methoxy-7b-methyl-2aH-cyclopentindene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90144-83-5

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90144-83-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90144-83-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,4 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90144-83:
(7*9)+(6*0)+(5*1)+(4*4)+(3*4)+(2*8)+(1*3)=115
115 % 10 = 5
So 90144-83-5 is a valid CAS Registry Number.

90144-83-5Downstream Products

90144-83-5Relevant academic research and scientific papers

Tricyclic Annulenes. Part 2. Synthesis of 7b-Methyl-7bH-cyclopentindene

McCague, Raymond,Moody, Christopher J.,Rees, Charles W.

, p. 165 - 174 (2007/10/02)

Four routes have been developed to the tricyclic annulene, 7b-methyl-7bH-cyclopentindene (1), starting from the diester (2a), the tricyclic nitrile (6), or the tricyclic ketone (9).The best overall procedure involves the ketones (9a) and (15).The

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