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144604-63-7

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144604-63-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144604-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,6,0 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 144604-63:
(8*1)+(7*4)+(6*4)+(5*6)+(4*0)+(3*4)+(2*6)+(1*3)=117
117 % 10 = 7
So 144604-63-7 is a valid CAS Registry Number.

144604-63-7Relevant articles and documents

A study of the reaction mechanism of 3-nitro-4-R-furoxans formation by nitrosation of dipotassium salts of 1-hydroxyimino-2,2-dinitro-1-R-ethanes

Ovchinnikov,Strelenko,Popov,Finogenov,Makhova

scheme or table, p. 855 - 860 (2012/02/05)

The mechanism proposed earlier for explanation of the furoxan ring formation in the nitrosation of dipotassium salts of 1-hydroxyimino-2,2-dinitro- 1-R-ethanes with NaNO2/AcOH was confirmed experimentally by determining the ionization constants of the dinitromethyl and oxime fragments in the starting dipotassium salt and by examining 1H, 13C, 14N, and 15N NMR and mass spectra of isomeric 3(4)-nitro-4(3)-R-furoxans with the 15N(5) and 15N(2) ring atoms, respectively, and 3,4-diarylfuroxan with both 15N-labeled ring atoms. A comparative analysis of the IR and Raman spectra of the 15N-labeled furoxan derivatives obtained and their unlabeled analogs allowed refinement of the literature data on interpretation of the vibrational spectra of furoxan derivatives.

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