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2164-62-7

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2164-62-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2164-62-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,6 and 4 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2164-62:
(6*2)+(5*1)+(4*6)+(3*4)+(2*6)+(1*2)=67
67 % 10 = 7
So 2164-62-7 is a valid CAS Registry Number.

2164-62-7Downstream Products

2164-62-7Relevant articles and documents

New proton transfer lasing systems - derivatives of 2,2'-bipyridyl. Synthesis and photophysical characteristics

Kaczmarek, L.,Nowak, B.,Zukowski, J.,Borowicz, P.,Sepiol, J.,Grabowska, A.

, p. 189 - 200 (1991)

Two new bipyridyl derivatives undergoing the excited state intramolecular proton transfer were synthesized: 5-methyl--3,3'-diol and 5,5'-dimethyl--3,3'-diol.Both reveal a strong phototautomeric, largely Stokes-shifted fluorescence and can be used as proton transfer laser dyes.Tuning ranges and lasing efficiences are also reported.

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