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3-[(ethoxyethylidene)amino]-2-ethoxycarbonyl-1-(o-methoxyphenyl)-1H-naphtho-[2,1-b]pyran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1258277-72-3

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1258277-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1258277-72-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,2,7 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1258277-72:
(9*1)+(8*2)+(7*5)+(6*8)+(5*2)+(4*7)+(3*7)+(2*7)+(1*2)=183
183 % 10 = 3
So 1258277-72-3 is a valid CAS Registry Number.

1258277-72-3Upstream product

1258277-72-3Relevant academic research and scientific papers

Convenient synthesis of 11-aryl-1,12-dihydro-11H-naphthopyrano[2,3-d] pyrimidin-12-ones

Mkaouar, Kamar,Chabchoub, Fakher,Samadi, Abdelouahid,Contelles, Jose Louis Marco,Salem, Mansour

experimental part, p. 3405 - 3414 (2011/01/12)

Various imidates 3 were successfully synthesized from naphthopyrans and ethyl orthoesters in moderate yields. These intermediates undergo rapid condensation with several primary amines to give the corresponding 11-aryl-1,12-dihydro-11H-naphthopyrano[2,3-d

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