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137786-97-1

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137786-97-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137786-97-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,7,8 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 137786-97:
(8*1)+(7*3)+(6*7)+(5*7)+(4*8)+(3*6)+(2*9)+(1*7)=181
181 % 10 = 1
So 137786-97-1 is a valid CAS Registry Number.

137786-97-1Relevant articles and documents

Identification of novel ROS inducers: Quinone derivatives tethered to long hydrocarbon chains

Hong, Yeonsun,Sengupta, Sandip,Hur, Wooyoung,Sim, Taebo

, p. 3739 - 3750 (2015/05/27)

We performed the first synthesis of the 17-carbon chain-tethered quinone moiety 22 (SAN5201) of irisferin A, a natural product exhibiting anticancer activity, and its derivatives. We found that 22 is a potent ROS inducer and cytotoxic agent. Compound 25 (SAN7401), the hydroquinone form of 22, induced a significant release of intracellular ROS and apoptosis (EC50 = 1.3-2.6 μM) in cancer cell lines, including A549 and HCT-116. Compared with the activity of a well-known ROS inducer, piperlongumine, 22 and 25 showed stronger cytotoxicity and higher selectivity over noncancerous cells. Another hydroquinone tethering 12-carbon chain, 26 (SAN4601), generated reduced levels of ROS but showed more potent cytotoxicity (EC50 = 0.8-1.6 μM) in cancer cells, although it lacked selectivity over noncancerous cells, implying that the naturally occurring 17-carbon chain is also crucial for ROS production and a selective anticancer effect. Both 25 and 26 displayed strong, equipotent activities against vemurafenib-resistant SK-Mel2 melanoma cells and p53-deficient H1299 lung cancer cells as well, demonstrating their broad therapeutic potential as anticancer agents.

Structures of belamcandols A and B isolated from the seed of Belamcanda chinensis

Fukuyama,Okino,Kodama

, p. 1877 - 1879 (2007/10/02)

The structures of belamcandols A and B isolated from the seeds of Belamcanda chinensis have been assigned to 2,4-dimethoxy-6-((Z)-10'-pentadecenyl)phenol and 1-O-methyl-5-((Z)-10'-pentadecenyl)resorcinol, respectively, based on spectroscopic data and chemical degradation. Belamcandol A inhibits 5-lipoxygenase activity at IC50 0.60 μM.

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