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16227-22-8

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16227-22-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16227-22-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,2 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 16227-22:
(7*1)+(6*6)+(5*2)+(4*2)+(3*7)+(2*2)+(1*2)=88
88 % 10 = 8
So 16227-22-8 is a valid CAS Registry Number.

16227-22-8Relevant articles and documents

Voynick,Fruton

, p. 40,42 (1968)

Synthesis and Characterization of a Series of Orthogonally Protected l-Carnosine Derivatives

El-Dakdouki, Mohammad H.,Daouk, Nadine,Abdallah, Hiba

, p. 1 - 12 (2018/02/19)

l-Carnosine (β-alanyl-l-histidine) is an endogenous dipeptide that has been recognized for its broad spectrum of beneficial biological activities. However, the therapeutic utility of molecule has been hampered by its instability in human plasma (half-life

"Backdoor Induction" of chirality in asymmetric hydrogenation with rhodium(I) complexes of amino acid substituted triphenylphosphane ligands

Kokan, Zoran,Kirin, Srecko I.

supporting information, p. 8154 - 8161 (2014/01/06)

This paper describes the synthesis and characterization of 5-(diphenylphosphanyl)isophthalic acid bioconjugates (Lig-[R]2). In addition to symmetrically disubstituted conjugates with amino acids, peptides or amines, a convenient one-pot, two-step procedure for the synthesis of conjugates bearing two different substituents is reported. The 28 prepared phosphanes were used as monodentate ligands in the rhodium(I)-catalyzed hydrogenation of 2-acetamidoacrylate and (Z)-α-acetamidocinnamate. The ligand with the smallest side-chain substituents Lig-[Ala-OMe]2 (1a) revealed the highest selectivity, with up to 84 % ee. The catalysts presented herein are models of artificial metalloenzymes in which the outer-coordination sphere controls the selectivity in catalysis. The chirality of distant hydrogen-bonded amino acids is transmitted by "backdoor induction" to the prochiral RhI center. Models of artificial metalloenzymes are presented in which the outer-coordination sphere controls the selectivity in catalysis. The chirality of distant hydrogen-bonded amino acids or amines is transmitted by "backdoor induction" to the prochiral RhI center. Copyright

Synthesis of Sansalvamide A derivatives and their cytotoxicity in the MSS colon cancer cell line HT-29

Styers, Thomas J.,Kekec, Ahmet,Rodriguez, Rodrigo,Brown, Joseph D.,Cajica, Julia,Pan, Po-Shen,Parry, Emily,Carroll, Chris L.,Medina, Irene,Corral, Ricardo,Lapera, Stephanie,Otrubova, Katerina,Pan, Chung-Mao,McGuire, Kathleen L.,McAlpine, Shelli R.

, p. 5625 - 5631 (2007/10/03)

We report the synthesis of thirty-six Sansalvamide A derivatives, and their biological activity against colon cancer HT-29 cell line, a microsatellite stable (MSS) colon cancer cell-line. The thirty-six compounds can be divided into three subsets, where t

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