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94127-03-4

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94127-03-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 94127-03-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,1,2 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 94127-03:
(7*9)+(6*4)+(5*1)+(4*2)+(3*7)+(2*0)+(1*3)=124
124 % 10 = 4
So 94127-03-4 is a valid CAS Registry Number.

94127-03-4Upstream product

94127-03-4Downstream Products

94127-03-4Relevant articles and documents

(2,6)- and (2,5)Pyrazinophanes: Synthesis and Molecular Structure

Eiermann, Uwe,Krieger, Claus,Neugebauer, Franz A.,Staab, Heinz A.

, p. 523 - 533 (2007/10/02)

The title compounds 1-3 and their methyl derivatives 4-7 were synthesized either by photolytic sulfur extrusion from the corresponding 2,11-dithiapyrazinophanes 24-26 or by Hofmann 1,6-elimination of the appropriate trimethylammonium hydroxides followed by dimerization of the generated 2,5-dihydro-2,5-dimethylene-pyrazines. α-Chlorination of the methylpyrazines 8-10 with N-chlorosuccinimide gave the required precursors 11, 12, 14, 17, and 18.The results of the X-ray structure determinations for 1-4 and 7 which indicate an unequivocal isomer assignment are discussed with regard to steric strain in these molecules.The electronic spectra of the pyrazinophanes 1-7 are reported and compared with those of the parent methylpyrazines.

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