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5,9-Methanopyrimido[4,5-b]azocin-9(6H)-ol, 2,4-diamino-5,7,8,10-tetrahydro- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

219904-77-5

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219904-77-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219904-77-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,0 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 219904-77:
(8*2)+(7*1)+(6*9)+(5*9)+(4*0)+(3*4)+(2*7)+(1*7)=155
155 % 10 = 5
So 219904-77-5 is a valid CAS Registry Number.

219904-77-5Relevant academic research and scientific papers

Synthesis of 2,4-diamino-5,6,7,8,9,10-hexahydro-5,9-methanopyrimido [4,5-b]azocine

Taylor, Edward C.,Dowling, James E.,Bhatia, Beena

, p. 441 - 446 (1999)

We have initiated a program aimed at the synthesis of derivatives of 2,4-diamino-5,6,7,8,9,10-hexahydro-5,9-methanopyrimido[4,5-b]azocine (3) as potential selective inhibitors of Pneumocystis carinii DHFR. The present paper describes a simple synthesis of 3 from 2,4,6-triaminopyrimidine and 2- cyclohexen-1-one as well as methodology for the introduction of a variety of substituents at bridgehead position C-9.

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