1449-06-5

21-epi-Serratenediol is a neutral triterpene isolated from Sitka spruce bark[1].

A general extraction method from the herb Huperzia serrata:
1) Acidic aqueous extraction; residue extracted with ethanol or water.
2) Concentration of extracts.
3) The primary extract is basified, extracted with chloroform, and the chloroform ext

[1] J P Kutney, I H Rogers. The neutral triterpenes of the bark of Picea sitchensis (Sitka spruce). Tetrahedron. 1969 Sep;25(17):3731-51. DOI:10.1016/s0040-4020(01)82906-9