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848029-89-0

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848029-89-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 848029-89-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,8,0,2 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 848029-89:
(8*8)+(7*4)+(6*8)+(5*0)+(4*2)+(3*9)+(2*8)+(1*9)=200
200 % 10 = 0
So 848029-89-0 is a valid CAS Registry Number.

848029-89-0Relevant articles and documents

One pot synthesis of fused [1,2-a]pyrrole from 1,6-dioxo-2,4-diene and haloalkyl primary amine

Juang, Shyh-Shiann,Chang, Michael,Wang, Long Fu,Han, Jeng Liang,Ong, Chi Wi

, p. 1693 - 1697 (2005)

The one pot synthesis of fused 2,3-dihydropyrrolizine 4a and 6,7-dihydro-5H-indolizine 4b involving the intermolecular dehydrative condensation of 1-phenyl-1,6-dioxo-hepta-2,4-diene 1 with 2-chloroethylamine and 3-chloropropylamine followed by the intramolecular cyclization of the intermediary products 2-(1-chloroalkyl-5-methylpyrrol-2-yl)-1-phenylethanones 3a,b in the presence of a base such as Na2CO3 and NaHCO3 is described. These also led to the concurrent formation of the oxidatively dimerized product 2,3-bis-[1,5-(2-chloroalkyl)-1-H-pyrrol-2-yl]- 1,4-diphenylbutane-1,4-dione 5a,b whereby the structure was further confirmed by X-ray analysis.

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