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66433-98-5

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66433-98-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66433-98-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,3 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 66433-98:
(7*6)+(6*6)+(5*4)+(4*3)+(3*3)+(2*9)+(1*8)=145
145 % 10 = 5
So 66433-98-5 is a valid CAS Registry Number.

66433-98-5Relevant articles and documents

The synthesis, X-ray structure and metal cation complexation properties of colored crown with two heterocyclic residues as a part of macrocycle

Wagner-Wysiecka,Luboch,Fonari

, p. 1319 - 1330 (2008/12/21)

New azocrown ether with pyrrole and pyridine as parts of macrocycle was synthesized. Metal cation complexation was investigated in acetonitrile and in acetonitrile-water mixture with the use of UV/VIS spectroscopy. Structure of the macrocycle was studied

PODAND-PORPHYRINS WITH PERIPHERAL CHELATES

Mel'nik, V. I.,Zhilina, Z. I.,Andronati, S. A.,Ganevich, V. N.,Babchinskaya, M. V.

, p. 376 - 380 (2007/10/02)

Alkylation of 5-(3'-nitro-4'-hydroxyphenyl)-10,15,20-triphenylporphyrin with chloropyridines as well as condensation by a mixed-aldehyde method starting with formylpyridines , benzaldehyde, and pyrrole are used to synthesize previously unknown podand-porphyrins containing from one to four peripheral chelates.

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