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26432-41-7

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26432-41-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26432-41-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,4,3 and 2 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 26432-41:
(7*2)+(6*6)+(5*4)+(4*3)+(3*2)+(2*4)+(1*1)=97
97 % 10 = 7
So 26432-41-7 is a valid CAS Registry Number.

26432-41-7Relevant articles and documents

Proline-based dipeptides with two amide units as organocatalyst for the asymmetric aldol reaction of cyclohexanone with aldehydes

Chen, Fubin,Huang, Shi,Zhang, Hui,Liu, Fengying,Peng, Yungui

, p. 9585 - 9591 (2008/12/22)

A series of proline-based dipeptide organocatalysts with two amide units (1-16) have been developed and evaluated in the direct catalytic asymmetric aldol reactions of aldehydes with cyclohexanone. These catalysts showed good solubility in organic solvents compared with their corresponding carboxyl terminal dipeptides. The robust amide bond formation allowed structural modifications and fine tuning of catalyst properties by varying the stereo and electronic effects of the terminal amide to affect the ability of hydrogen bonding formation between the catalysts and the substrates. The reactions proceeded smoothly in high yields (up to 99%), enantioselectivities (up to 98% ee) and anti-diastereoselectivities (up to 99:1) in the presence of bifunctional organocatalyst 4 under the optimal reaction conditions.

Amino acids and peptides. XX. Inhibition of papain by succinyl-Gln-Val-Val-Ala-Ala-p-nitroanilide, a common sequence of endogenous thiol proteinase inhibitors.

Okada,Teno,Tsuboi,Nakabayashi,Itoh,Okamoto,Nishi

, p. 1982 - 1989 (2007/10/02)

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Synthesis of chromogenic substrates specific for human spleen fibrinolytic proteinase (SFP) and human leukocyte elastase (LE).

Okada,Tsuda,Hirata,Nagamatsu,Okamoto

, p. 4060 - 4068 (2007/10/02)

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