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191991-29-4

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191991-29-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191991-29-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,9,9 and 1 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 191991-29:
(8*1)+(7*9)+(6*1)+(5*9)+(4*9)+(3*1)+(2*2)+(1*9)=174
174 % 10 = 4
So 191991-29-4 is a valid CAS Registry Number.

191991-29-4Relevant articles and documents

Nitrogen inversion and N-O bond rotation in some hydroxylamine and isoxazolidine derivatives

Hassan, Azfar,Wazeer, Mohamed I. M.,Perzanowski, Herman P.,Ali, Sk. Asrof

, p. 411 - 418 (2007/10/03)

A series of trisubstituted hydroxylamine derivatives, both cyclic and acyclic, has been prepared. The energy barriers in these hydroxylamines are found to be dominated either by nitrogen inversion or N-O bond rotation depending on the nature of the substi

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