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66303-57-9

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66303-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66303-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,3,0 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66303-57:
(7*6)+(6*6)+(5*3)+(4*0)+(3*3)+(2*5)+(1*7)=119
119 % 10 = 9
So 66303-57-9 is a valid CAS Registry Number.

66303-57-9Upstream product

66303-57-9Downstream Products

66303-57-9Relevant articles and documents

Electronic Structure and Gas-Phase Thermolysis of 2-Tetrazenes with Acyclic or Cyclic Amino Groups Studied by Photoelectron Spectroscopy

Rademacher, Paul,Heymanns, Peter,Muenzenberg, Ralf,Woell, Heike,Kowski, Klaus,Poppek, Rainer

, p. 2073 - 2080 (2007/10/02)

The electronic structures and the gas-phase thermolysis of the 2-tetrazenes 2-13 have been studied by He(I) photoelectron spectroscopy.The compounds are characterized by at least three ionization potentials with energies less than 10 eV which are assigned to the molecular orbitals ?3 (HOMO), n(+), ?2, and n(-).In the thermolyses either the formal disproportionation products (amine and imine) of the respective aminyl radical are found, or the latter is stabilized by loss of an alkyl radical affording also an imine.Further products which can be explained by radical reactions are detected in flash vacuum pyrolyses.The tricyclic cis-2-tetrazene 13 is cleaved by cycloreversion.The methoxymethylsubstituted compound 8 exhibit a more complex cleavage pattern. - Key Words: Electronic structure / PE spectroscopy / Thermolysis, gas-phase / Imines / Radicals

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