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70623-44-8

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70623-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70623-44-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,6,2 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70623-44:
(7*7)+(6*0)+(5*6)+(4*2)+(3*3)+(2*4)+(1*4)=108
108 % 10 = 8
So 70623-44-8 is a valid CAS Registry Number.

70623-44-8Relevant articles and documents

Catalytic application of zinc complex of oxygen depleted 1,3-bis(pyrazole)-p-tert-butylcalix[4]arene

Sinha, Anshu Kumar,Vigalok, Arkadi,Rawat, Varun

supporting information, p. 796 - 799 (2019/02/14)

In this paper we have described the synthesis and coordination properties of monometallic Zinc complex of oxygen depleted bis(pyrazole)-p-tert-butylcalix[4]arene ligand. We also present the catalytic activity of the Zinc–bis(pyrazole) complex, in acetylation of alcohols and lactide polymerization.

Cavitand templated catalysis of acetylcholine

Zelder, Felix H.,Rebek Jr., Julius

, p. 753 - 754 (2008/02/03)

A Zn-salen-modified cavitand templates the catalytic formation of acetylcholine from choline and acetic anhydride. The Royal Society of Chemistry 2006.

Recognition of quaternary ammonium salts with tetrapeptides containing α-aminoisobutyric acid as a conformational constraint

Yanagihara, Ryoji,Katoh, Masaki,Hanyuu, Masayuki,Miyazawa, Toshifumi,Yamada, Takashi

, p. 551 - 556 (2007/10/03)

Tetrapeptides Trp-Aib-Gly-Leu-NH-Ar (Aib:α-aminoisobutyric acid, 2-amino-2-methylpropanoic acid, Ar = phenyl or 3,5-dimethylphenyl) were synthesized. The peptides bound quaternary ammonium salts as guests in CDCl3. For every guest, the binding constant K of the peptide host which has a 3,5-dimethylphenyl group was larger than that of the host which has a phenyl group. ROESY analysis of the complex revealed that the N+-CH3 groups of the guests were close to the aromatic moieties of the host in the complex. The charge in cation guests, the φ-basicity of the host, and the turn conformation of the peptides were important factors for the complexation.

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