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129820-50-4

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129820-50-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129820-50-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,8,2 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 129820-50:
(8*1)+(7*2)+(6*9)+(5*8)+(4*2)+(3*0)+(2*5)+(1*0)=134
134 % 10 = 4
So 129820-50-4 is a valid CAS Registry Number.

129820-50-4Downstream Products

129820-50-4Relevant articles and documents

Nouvelle voie de synthese d'isoidindolones et d'isoquinoleines par condensation d'iminophosphoranes avec l'ortho-phthalaldehyde: reactions, mecanismes et etude structurale

Aubert, Thierry,Farnier, Michel,Guilard, Roger

, p. 842 - 851 (2007/10/02)

The condensation of various iminophosphoranes with o-phthalaldehyde led directly to N-substituted isoindoline-1-ones and 3-acylisoquinolines.Three different mechanisms, depending on the nature of the iminophosphorane and reaction conditions, are proposed.All the compounds have been fully characterized, particularly by one- and two-dimensional nuclear magnetic resonance spectroscopy.

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