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68844-69-9

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68844-69-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68844-69-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,8,4 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 68844-69:
(7*6)+(6*8)+(5*8)+(4*4)+(3*4)+(2*6)+(1*9)=179
179 % 10 = 9
So 68844-69-9 is a valid CAS Registry Number.

68844-69-9Relevant articles and documents

Chirality switching in the enantioseparation of 2-hydroxy-4-phenylbutyric acid: Role of solvents in selective crystallization of the diastereomeric salt

Hirose, Takuji,Kodama, Koichi,Shitara, Hiroaki,Yi, Meng

, (2020/03/04)

Chirality switching was induced by solvents in the enantioseparation of 2-hydroxy-4-phenylbutyric acid (HPBA) via diastereomeric salt formation with an enantiopure aminoalcohol. The (S)-salt was crystallized from butanol solutions and the (R)-salt was obt

Design and synthesis of novel 2-pyridone peptidomimetic falcipain 2/3 inhibitors

Verissimo, Edite,Berry, Neil,Gibbons, Peter,Cristiano, M. Lurdes S.,Rosenthal, Philip J.,Gut, Jiri,Ward, Stephen A.,O'Neill, Paul M.

scheme or table, p. 4210 - 4214 (2009/04/10)

The structure-based design, chemical synthesis and in vitro activity evaluation of various falcipain inhibitors derived from 2-pyridone are reported. These compounds contain a peptidomimetic binding determinant and a Michael acceptor terminal moiety capable of deactivating the cysteine protease active site.

The first catalytic, asymmetric α-additions of isocyanides. Lewis-base-catalyzed, enantioselective Passerini-type reactions

Denmark, Scott E.,Fan, Yu

, p. 7825 - 7827 (2007/10/03)

The first, catalytic, enantioselective α-additions of isocyanides to aldehydes have been demonstrated (Passerini-type reactions). The catalytic system of silicon tetrachloride and a chiral bisphosphoramide 5a provided high yields and good to excellent enantioselectivities for the addition of tert-butyl isocyanide to a wide range of aldehydes (aromatic, olefinic, acetylenic, aliphatic). Aqueous workup afforded the α-hydroxy tert-butyl amides, whereas methanolic quench followed by basic workup afforded the ∞-hydroxy methyl esters. Copyright

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