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91133-67-4

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91133-67-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91133-67-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,3 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91133-67:
(7*9)+(6*1)+(5*1)+(4*3)+(3*3)+(2*6)+(1*7)=114
114 % 10 = 4
So 91133-67-4 is a valid CAS Registry Number.

91133-67-4Downstream Products

91133-67-4Relevant articles and documents

Synthesis and activity evaluation of the cyclic dipeptides arylidene N-alkoxydiketopiperazines

Tian, Xia,Feng, Juan,Fan, Shi-ming,zhen, Xiao-li,Han, Jian-rong,Liu, Shou-xin

, p. 5197 - 5205 (2016/10/24)

A series of arylidene N-alkoxydiketopiperazines was designed and stereoselectively synthesized via oxime-ether formation and intramolecular acylation. Possible cyclization and acid-catalyzed rearrangement-fragmentation mechanisms were discussed. The crystal structure of the novel diketopiperazine further confirmed the rearrangement mechanism. Most compounds exhibited antitumor activity. Several compounds were more potent against caspase-3. Specifically, compounds 6e, 6g, and 6f inhibited caspase-3 at IC50values lying within the low micromolar range and demonstrated good selectivity. The binding modes of alkoxydiketopiperazines in the active center of caspase-3 were also discussed based on the molecular docking results.

Design, synthesis, and anti-tumor activity of (2-O-alkyloxime-3-phenyl)- propionyl-1-O-acetylbritannilactone esters

Liu, Shouxin,Liu, He,Yan, Weiying,Zhang, Li,Bai, Naisheng,Ho, Chi-Tang

, p. 2783 - 2789 (2007/10/03)

The extracts of Inula britannica have anti-inflammatory, anti-bacterial, anti-hepatitic, and anti-tumor activities. Various sesquiterpene lactones with cytotoxic properties including 1-O-acetylbritannilactone (1) have been isolated from this Chinese medic

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