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109972-84-1

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109972-84-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109972-84-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,7 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109972-84:
(8*1)+(7*0)+(6*9)+(5*9)+(4*7)+(3*2)+(2*8)+(1*4)=161
161 % 10 = 1
So 109972-84-1 is a valid CAS Registry Number.

109972-84-1Relevant articles and documents

Towards a Molecular Abacus

Reddington, Mark V.,Slawin, Alexandra M. Z.,Spencer, Neil,Stoddart, J. Fraser,Vicent, Cristina,Williams, David J.

, p. 630 - 634 (1991)

The solid state and solution structures of the 1:1 complex formed between the cyclobis(paraquat-p-phenylene) tetracationic cyclophane and 1,5-dimethoxynaphthalene has led to the successful design and characterisation by X-ray crystallography of a prototyp

Anion induced displacement studies in naphthalene diimide containing interpenetrated and interlocked structures

Mullen, Kathleen M.,Davis, Jason J.,Beer, Paul D.

scheme or table, p. 769 - 776 (2009/06/20)

This article describes investigations into the development of supramolecular systems capable of sensing anions through either displacement type assays or molecular motion. An electron deficient naphthalene diimide thread and an electron rich isophthalamid

Synthetic studies on kinamycin antibiotics: Synthesis of a trioxygenated benz[f]indenone and its Diels-Alder reaction to a kinamycin skeleton

Kitani, Yasuo,Morita, Akiko,Kumamoto, Takuya,Ishikawa, Tsutomu

, p. 1186 - 1195 (2007/10/03)

A benzo[b]fluorene skeleton such as 10, a basic four-ring system in the revised diazo structures 3 of kinamycin antibiotics, was synthesized by Diels-Alder reaction between dienophile 4,7,8-trioxygenated 1H-benz[f]inden-1-one 11 and Danishefsky-type diene 7. The indenone 11 was prepared by deoxygenation of 2,3-dihydro-1H-benz[f]inden-1-one 12 with the inexpensive 1 -hydroxy-1.2-benziodoxol-3(1H)-one 1-oxide (IBX) after modification of the known protocol. Indenone 12 in turn was obtained from naphthalene-1,5-diol (14) via an intramolecular Friedel-Crafts cyclization of naphthalene-2-propanoic acid 13 as a key step.

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