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135962-99-1

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135962-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135962-99-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,6 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 135962-99:
(8*1)+(7*3)+(6*5)+(5*9)+(4*6)+(3*2)+(2*9)+(1*9)=161
161 % 10 = 1
So 135962-99-1 is a valid CAS Registry Number.

135962-99-1Downstream Products

135962-99-1Relevant articles and documents

UNUSUAL EFFECTS OF STERIC HINDRANCES IN NMR SPECTRA OF o,o'-DIALKYLSUBSTITUTED BENZYLIDENE DICHLORIDES

Yabukov, A. P.,Tsyganov, D. V.,Belen'kii, L. I.,Bogdanov, V. S.,Ugrak, B. I.,Krayushkin, M. M.

, p. 5237 - 5244 (1991)

It has been found that steric hindrances of the CHCl2 group rotation around CAr-CHCl2 bond in o,o'-dialkylsubstituted benzylidene dichlorides call forth a non-equivalence of the alkyls in positions 2 and 6.The non-equivalence displays in 1H and 13C NMR spectra at room temperature and at -20 deg C.At the latter temperature, the spectra of 2,4,6-trimethyl-3-chloromethylbenzylidene dichloride and bis(dichloromethyl)mesitylene indicate the presence of two conformations, the assignment of signals having accomplished for each of them.

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