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3968-96-5

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3968-96-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3968-96-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,6 and 8 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 3968-96:
(6*3)+(5*9)+(4*6)+(3*8)+(2*9)+(1*6)=135
135 % 10 = 5
So 3968-96-5 is a valid CAS Registry Number.

3968-96-5Relevant articles and documents

Room temperature observation of p-xylylenes by 1H NMR and evidence for diradical intermediates in their oligomerization

Trahanovsky, Walter S.,Lorimor, Steven P.

, p. 1784 - 1794 (2007/10/03)

p-Quinodimethanes (p-QDMs) are reactive molecules that have been invoked as transient intermediates in a number of reactions. Dilute solutions of benzene-based p-QDMs, p-xylylene (1), α-methyl-p-xylylene (10), and 2,5-dimethyl-p-xylylene (11) can be prepared by fluoride-induced elimination of trimethylsilyl acetate from the appropriate precursor. It has been found that these solutions are stable enough to allow these reactive p-QDMs to be observed by 1H NMR spectroscopy at room temperature. For the first time, the 13C NMR spectrum of p-QDM 1 was observed. After several hours at room temperature, these p-QDMs form dimers, trimers, and insoluble oligomers. Formation of trimers provides evidence that p-QDMs 1, 10, and 11 dimerize by a stepwise mechanism involving dimeric diradicals as intermediates.

1H NMR Utilization of Through-Space Effects III - Configuration of Oximes and Analogous Compounds

Rouillard, M.,Girault, Y.,Decouzon, M.,Azzaro, M.

, p. 357 - 360 (2007/10/02)

The configurational assignment of Z and E nitrogen derivatives (C=NY) of 3,5,5-trimethyl-2-cyclohexen-1-one was made taking into consideration the through-space effects on oxime, O-methyloxime, dimethylhydrazone, tert-butylimine, N,N,N-trimethylhydr

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