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naphtho[1',2':4,5]thieno[2,3-b]pyridine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

402938-70-9

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402938-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402938-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,9,3 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 402938-70:
(8*4)+(7*0)+(6*2)+(5*9)+(4*3)+(3*8)+(2*7)+(1*0)=139
139 % 10 = 9
So 402938-70-9 is a valid CAS Registry Number.

402938-70-9Upstream product

402938-70-9Downstream Products

402938-70-9Relevant academic research and scientific papers

Cascade synthesis of new tetracyclic heteroaromatic thieno[2,3-b]pyridine- containing ring systems

Aitken, R. Alan,Garnett, Alasdair N.

scheme or table, p. 2402 - 2404 (2010/03/03)

Flash vacuum pyrolysis of appropriate stabilised ylides, prepared in a few steps from 2-(methylthio)nicotinic acid, give products containing previously unknown naphtho-, phenanthro-, benzothieno-and benzofuro-fused thieno[2,3-b]pyridine ring systems.

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