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180265-66-1

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180265-66-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 180265-66-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,2,6 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 180265-66:
(8*1)+(7*8)+(6*0)+(5*2)+(4*6)+(3*5)+(2*6)+(1*6)=131
131 % 10 = 1
So 180265-66-1 is a valid CAS Registry Number.

180265-66-1Relevant articles and documents

Nitrogen inversion and N-O bond rotation processes in di- and tri-substituted hydroxylamines. A dynamic NMR study

Ali, Sk. Asrof,Hassan, Azfar,Wazeer, Mohammed I. M.

, p. 1479 - 1484 (2007/10/03)

The barriers to inversion in several acyclic di- and tri-substituted hydroxylamines are determined by 1H NMR band shape analysis.The barriers range from 49.1 to 66.8 kJ mol1- and are discussed in terms of a conformational process which involves nitrogen inversion and rotation around the N-O bond.The N-benzyl group with an ortho hydroxy substituent increases the nitrogen inversion barrier by 10 kJ mol-1, which indicates the requirement of breaking of the intramolecular hydrogen bond prior to inversion.

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