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143444-51-3

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143444-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143444-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,4,4 and 4 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143444-51:
(8*1)+(7*4)+(6*3)+(5*4)+(4*4)+(3*4)+(2*5)+(1*1)=113
113 % 10 = 3
So 143444-51-3 is a valid CAS Registry Number.

143444-51-3Relevant articles and documents

First synthesis and crystal structures of chiral 1,3-dienylborates

Mortier, Jacques,Vaultier, Michel,Plunian, Barbara,Toupet, Loic

, p. 703 - 711 (2007/10/03)

We report on the synthesis of bicyclic 1,3-dienylborates (1a/1b and 2a/2b), wherein the boron and nitrogen atoms are chiral. The absolute configuration of these molecules was established by single X-Ray diffraction studies and qualitative homonuclear NOE difference spectroscopy. The conformational stability of these molecules is low at ambient or subambient temperature. The diastereomeric borates (2a/2b) were found to be very reactive toward dienophiles in the Diels-Alder reaction.

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