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2-nitrobenzyl selenocyanate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91997-40-9

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91997-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91997-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,9 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91997-40:
(7*9)+(6*1)+(5*9)+(4*9)+(3*7)+(2*4)+(1*0)=179
179 % 10 = 9
So 91997-40-9 is a valid CAS Registry Number.

91997-40-9Relevant academic research and scientific papers

Selenocyanates and diselenides: A new class of potent antileishmanial agents

Plano, Daniel,Baquedano, Ylenia,Moreno-Mateos, David,Font, María,Jiménez-Ruiz, Antonio,Palop, Juan Antonio,Sanmartín, Carmen

experimental part, p. 3315 - 3323 (2011/08/03)

Thirty five selenocyanate and diselenide compounds were subjected to in vitro screening against Leishmania infantum promastigotes and the most active ones were also tested in an axenic amastigote model. In order to establish the selectivity indexes (SI) t

Substitution Reactions toward 2-Nitrobenzyl Pseudohalides. The Crystal Structure of 2-Nitrobenzyl Tellurocyanate

Grung, Knut Eric,Roemming, Christian,Songstad, Jon

, p. 518 - 526 (2007/10/02)

The reactions between 2-nitrobenzyl pseudohalides, 2-NO2-PhCH2XCN, and pseudohalide ions, NCX- (X = S, Se or Te) have been studied kinetically in acetonitrile at 25.0 deg C.The reactions proceed through nucleophilic attack at the methylene carbon atom, forming exclusively the exchange products.The average nucleophilicity order, NCTe- >> NCSe- > NCS-, and the average leaving group order, NCTe- >/= NCSe- >/= NCS-, lead to a carbon basicity order NCTe- > NCSe- >/= NCS-, which is confirmed with equilibrium studies.A crystal structure determination of 2-nitrobenzyl tellurocyanate at ca. 135 deg C has revealed that the TeCN group is syn-clinal (gauche) to the C(CH2)-C(Ar) bond with a torsion angle of -48.5(5) deg.The TeCC plane forms an angle of 103.4(5) deg with the phenyl ring plane.In this conformation the steric influence of the 2-NO2 group in substitution reactions at the methylene carbon atom will be negligible except for bulky nucleophiles.The tellurium atom forms two fairly strong intermolecular bonds to nitrogen atoms from neighbouring tellurocyanate groups, viz. 2.889(6) Angstroem trans to the cyano group and 3.382(6) Angstroem trans to the methylene group.In the crystalline state the compound may be considered both as a tellurium(II) complex and as an organic pseudohalide.No intermolecular tellurium-oxygen contacts could be observed.

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