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Methyl protogracillin

Cat. No. M39945
Methyl protogracillin Structure
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Biological Activity

Methyl protogracillin (NSC-698793), isolated from the roots of Dioscorea opposite Thunb, exhibits strong anti-cancer activity.

Chemical Information
Molecular Weight 1079.23
Formula C52H86O23
CAS Number 54522-53-1
Form Solid
Storage -20°C, protect from light
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Xiao-Yan Duan et al. Zhongguo Zhong Yao Za Zhi. [Chemical constituents from Paris rugosa rhizomes and their antimicrobial activities]

[2] Ashish Kumar et al. Nat Prod Res. Comparative metabolic profiling of Costus speciosus leaves and rhizomes using NMR, GC-MS and UPLC/ESI-MS/MS

[3] K Hu et al. Planta Med. Antineoplastic agents. II. Four furostanol glycosides from rhizomes of Dioscorea collettii var. hypoglauca

[4] Ke Hu et al. Phytother Res. The cytotoxicity of methyl protoneogracillin (NSC-698793) and gracillin (NSC-698787), two steroidal saponins from the rhizomes of Dioscorea collettii var. hypoglauca, against human cancer cells in vitro

[5] K Hu et al. Anticancer Drugs. Methyl protogracillin (NSC-698792): the spectrum of cytotoxicity against 60 human cancer cell lines in the National Cancer Institute's anticancer drug screen panel

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