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(S)-2,3-dihydro-2-phenylimidazo[2,1-a]phthalazin-4-ium-6-olate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

191741-40-9

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191741-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191741-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,7,4 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 191741-40:
(8*1)+(7*9)+(6*1)+(5*7)+(4*4)+(3*1)+(2*4)+(1*0)=139
139 % 10 = 9
So 191741-40-9 is a valid CAS Registry Number.

191741-40-9Relevant academic research and scientific papers

Substituent-dependent asymmetric induction in the ring transformation of 2,3-dihydroimidazo[2,1-a]phthalazin-4-ium-6-olates effected by acetic and propionic anhydrides

Szabo, Andras,Csampai, Antal,Koermendy, Karoly,Boecskei, Zsolt

, p. 7021 - 7034 (2007/10/03)

On the effect of acetic and propionic anhydrides 2,3-dihydroimidazo[2,1-a]phthalazin-4-ium-6-olates (1c-j) underwent ring transformation (1→7.8). Alternative mechanisms are applied to reason the characteristic substituent-dependent asymmetric induction observed for the transformations of the 2-monosubstituted precursors. The structures of products were determined by IR. MS. 1H- and 13C-NMR (1D- and 2D) measurements supported by single crystal X-ray analysis.

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