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342889-58-1

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342889-58-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 342889-58-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,8,8 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 342889-58:
(8*3)+(7*4)+(6*2)+(5*8)+(4*8)+(3*9)+(2*5)+(1*8)=181
181 % 10 = 1
So 342889-58-1 is a valid CAS Registry Number.

342889-58-1Downstream Products

342889-58-1Relevant articles and documents

Syntheses and photophysical properties of some 4-arylpyridinium salts

Kelley,Ansu,Budisusetyo,Ghiorghis,Qin,Kauffman

, p. 11 - 23 (2007/10/03)

A number of 4-arylpyridines, many methoxy substituted, were prepared by an efficient two-step method involving aryl Grignard addition to 1-methyl-4-piperidone and direct aromatization of the resulting 4-aryl-4-piperidinols. The pyridines were N-alkylated to give sulfonate salts desired for their fluorescent properties. Study of selected compounds as laser dyes revealed several structures to be efficient dyes lasing in the 530-550 nm range. Two new diazaquaterphenyls were prepared and were quaternized. These salts exhibited intense fluorescence in the 420-450 nm range, but would not lase. A phenolic azaterphenyl suitably substituted for excited state intramolecular proton transfer (ESIPT) did not fluoresce at all.

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