Momordicin-28

Momordicin-28
Names
	IUPAC name 13-Hydroxy-28-methoxyurs-11-en-3-one
	Systematic IUPAC name (4aR,6aR,6bS,8aS,11R,12S,12aR,12bS,14aR,14bS)-12b-Hydroxy-8a-(methoxymethyl)-4,4,6a,6b,11,12,14b-heptamethyl-1,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,14a,14b-octadecahydropicen-3(2H)-one
	Other names 13-Hydroxy-28-methoxy-urs-11-en-3-one
Identifiers
CAS Number	1392-51-4 [PubChem];
3D model (JSmol)	Interactive image;
ChemSpider	57566599;
PubChem CID	57518366;
UNII	BWR6B8CZ53 ;
CompTox Dashboard (EPA)	DTXSID40727002 ;
	InChI InChI=1S/C31H50O3/c1-20-9-15-30(19-34-8)18-17-29(7)28(6)14-10-22-26(3,4)24(32)12-13-27(22,5)23(28)11-16-31(29,33)25(30)21(20)2/h11,16,20-23,25,33H,9-10,12-15,17-19H2,1-8H3/t20-,21+,22+,23-,25-,27+,28-,29+,30-,31+/m1/s1 Key: SQYPHCMLIZHTPW-LWIDLGQCSA-N;
	SMILES C[C@H]1[C@H](C)CC[C@]2(COC)CC[C@@]3(C)[C@]4(C)CC[C@@]5([H])C(C)(C)C(CC[C@]5(C)[C@@]4([H])C=C[C@]3(O)[C@@]21[H])=O;
Properties
Chemical formula	C31H50O3
Molar mass	470.738 g·mol−1
Melting point	121 to 122 °C (250 to 252 °F; 394 to 395 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Momordicin-28 or 13-hydroxy-28-methoxy-urs-11-en-3-one is a triterpene compound with formula C
₃₁H
₅₀O
₃ found in the fresh fruit of the bitter melon (Momordica charantia).

The compound is soluble in ethyl acetate and chloroform but not in petrol. It crystallizes as fine needles that melt at 121−122 °C. It was isolated in 1997 by S. Begum and others.