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23598-19-8

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23598-19-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23598-19-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,5,9 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 23598-19:
(7*2)+(6*3)+(5*5)+(4*9)+(3*8)+(2*1)+(1*9)=128
128 % 10 = 8
So 23598-19-8 is a valid CAS Registry Number.

23598-19-8Relevant articles and documents

Semisynthesis of apigenin and acacetin-7-O-β-d-glycosides from naringin and their cytotoxic activities

Liu, Jidan,Chen, Ling,Cai, Shuanglian,Wang, Qiuan

, p. 41 - 46 (2012/09/21)

Apigenin-7-O-β-d-glycosides 1-8 and acacetin-7-O-β-d-glycosides 9-16 were semisynthesized from 4′-O-benzyl apigenin 17 and acacetin 18 by glycosidation and deprotection with the corresponding α-acetylglycosyl bromide, respectively. Compounds 17 and 18 were prepared by iodination followed by base-induced elimination, 4′-O-benzylation, or 4′-O-methylation and acid hydrolysis using naringin as starting material which is readily available and cheap. Their cytotoxic potential against five human cancer cell lines (HL-60, SMMC-7721, A-549, MCF-7, and SW480) was evaluated by standard MTT method. The results show that compounds 2, 9, and 19 exhibit moderate cytotoxicity against HL-60, SMMC-7721, A-549, MCF-7, and SW480, while compound 3 exhibits potent cytotoxicity against MCF-7 selectively. Among the synthesized target compounds, 3, 4, 7, 11, 12, 15, and 16 were new compounds, the natural product 8 was the first synthesized and the synthesis of natural products 5, 6, 13, and 14 was efficiently improved by the new synthetic routes.

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