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57527-57-8

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57527-57-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57527-57-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,2 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57527-57:
(7*5)+(6*7)+(5*5)+(4*2)+(3*7)+(2*5)+(1*7)=148
148 % 10 = 8
So 57527-57-8 is a valid CAS Registry Number.

57527-57-8Upstream product

57527-57-8Relevant articles and documents

Synthesis of stable isoxazolines by [3+2] cycloaddition of oxaziridines with alkynes

Fabio, Marilena,Ronzini, Ludovico,Troisi, Luigino

, p. 4979 - 4984 (2008/09/21)

N-Alkyl substituted oxaziridines undergo a [3+2] cycloaddition reaction with a variety of terminal alkynes to give the product isoxazolines, whose stability appears to depend on the electronic properties of the groups on the C-3 and C-5 positions. The presence of an electron withdrawing group on C-5 and/or an electron donating group on C-3 causes isomerization of the isoxazolines to β-amino enones.

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