Cas 885502-72-7,1,4-bis(1-methylimidazol-2-ylethynyl)benzene

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Check Digit Verification of cas no

The CAS Registry Mumber 885502-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,5,5,0 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 885502-72:
(8*8)+(7*8)+(6*5)+(5*5)+(4*0)+(3*2)+(2*7)+(1*2)=197
197 % 10 = 7
So 885502-72-7 is a valid CAS Registry Number.

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885502-72-7Relevant academic research and scientific papers

A directly fused tetrameric porphyrin sheet and its anomalous electronic properties that arise from the planar cyclooctatetraene core

Nakamura, Yasuyuki,Aratani, Naoki,Shinokubo, Hiroshi,Takagi, Akihiko,Kawai, Tomoji,Matsumoto, Takuya,Yoon, Zin Seok,Kim, Deok Yun,Ahn, Tae Kyu,Kim, Dongho,Muranaka, Atsuya,Kobayashi, Nagao,Osuka, Atsuhiro

, p. 4119 - 4127 (2006)

Oxidation of a directly meso-meso linked cyclic porphyrin tetramer 2 gave a porphyrin sheet 3. The symmetric square structure of 3 is indicated by its simple 1H NMR spectrum that exhibits only two signals for the porphyrin β-protons. The absorp

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