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496790-43-3

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496790-43-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 496790-43-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,6,7,9 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 496790-43:
(8*4)+(7*9)+(6*6)+(5*7)+(4*9)+(3*0)+(2*4)+(1*3)=213
213 % 10 = 3
So 496790-43-3 is a valid CAS Registry Number.

496790-43-3Relevant articles and documents

Improved access to chiral tetranaphthoazepinium-based organocatalysts using aqueous ammonia as nitrogen source

Manaprasertsak, Auraya,Tharamak, Sorachat,Schedl, Christina,Roller, Alexander,Widhalm, Michael

supporting information, (2019/11/05)

The class of 3,30-diaryl substituted tetranaphthobisazepinium bromides has found wide application as highly efficient C2-symmetrical phase-transfer catalysts (PTCs, Maruoka type catalysts). Unfortunately, the synthesis requires a lar

Design of N-spiro C2-symmetric chiral quaternary ammonium bromides as novel chiral phase-transfer catalysts: Synthesis and application to practical asymmetric synthesis of α-amino acids

Ooi, Takashi,Kameda, Minoru,Maruoka, Keiji

, p. 5139 - 5151 (2007/10/03)

A series of C2-symmetric chiral quaternary ammonium bromides 10 and 11 have been designed as a new, purely synthetic chiral phase-transfer catalyst, and readily prepared from commercially available optically pure 1,1′-bi-2-naphthol as a basic c

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