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1229037-82-4

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1229037-82-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1229037-82-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,9,0,3 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1229037-82:
(9*1)+(8*2)+(7*2)+(6*9)+(5*0)+(4*3)+(3*7)+(2*8)+(1*2)=144
144 % 10 = 4
So 1229037-82-4 is a valid CAS Registry Number.

1229037-82-4Relevant articles and documents

Synthesis and biological evaluation of Raddeanin A, a triterpene saponin isolated from Anemone raddeana

Qian, Shan,Chen, Quan Long,Guan, Jin Long,Wu, Yong,Wang, Zhou Yu

, p. 779 - 785 (2016/10/12)

First, Raddeanin A, a cytotoxic oleanane-type triterpenoid saponin isolated from Anemone raddeana REGEL, was synthesized. Stepwise glycosylation was adopted in the synthesis from oleanolic acid, employing arabinosyl, glucosyl and rhamnosyl trichloroacetimidate as donors. The chemical structure of Raddeanin A was confirmed by means of 1H-NMR, 13C-NMR, IR, MS and elemental analysis, which elucidated the structure to be 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranosyl-(1→2)-α-L-arabinopyranoside oleanolic acid. Biological activity tests showed that in the range of low concentrations, Raddeanin A displayed moderate inhibitory activity against histone deacetylases (HDACs), indicating that the HDACs' inhibitory activity of Raddeanin A may contribute to its cytotoxicity.

Synthesis and α-glucosidase inhibitory activity of oleanolic acid derivatives

Qian, Shan,Hai Li, Jiao,Wei Zhang, Yu,Chen, Xin,Wu, Yong

scheme or table, p. 20 - 29 (2010/09/18)

Glucosidations of oleanolic acid (1) and its dihydroxy-olide derivatives (2) were carried out to provide eight glycosides. All synthesized compounds were evaluated by in vitro α-glucosidase inhibitory activity assay. 3-Acetyl dihydroxy-olide oleanolic der

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