Cas 1257331-26-2,C60H91N5O34

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Check Digit Verification of cas no

The CAS Registry Mumber 1257331-26-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,3,3 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1257331-26:
(9*1)+(8*2)+(7*5)+(6*7)+(5*3)+(4*3)+(3*1)+(2*2)+(1*6)=142
142 % 10 = 2
So 1257331-26-2 is a valid CAS Registry Number.

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1257331-26-2Relevant academic research and scientific papers

Light-switchable Janus [2]rotaxanes based on α-cyclodextrin derivatives bearing two recognition sites linked with oligo(ethylene glycol)

Li, Shujing,Taura, Daisuke,Hashidzume, Akihito,Harada, Akira

, p. 2281 - 2289 (2010)

Two Janus [2]rotaxanes, 5a and 5b, with α-cyclodextrin (a-CD) derivatives substituted on the 6-position with two recognition sites (azobenzene and heptamethylene (C7)) that were linked with linkers of different lengths (oligo(ethylene glycol) with a degre

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