Digitonin

Digitonin

Names
Other names digitin
Identifiers
CAS Number	11024-24-1 Y
3D model (JSmol)	Interactive image
ChemSpider	23753 Y
ECHA InfoCard	100.031.129
EC Number	234-255-6
KEGG	C00765 N
PubChem CID	25444
InChI InChI=1S/C56H92O29/c1-19-7-10-56(75-17-19)20(2)31-45(85-56)37(67)32-22-6-5-21-11-26(24(61)12-55(21,4)23(22)8-9-54(31,32)3)76-50-42(72)39(69)44(30(16-60)80-50)81-53-48(47(36(66)29(15-59)79-53)83-49-40(70)33(63)25(62)18-74-49)84-52-43(73)46(35(65)28(14-58)78-52)82-51-41(71)38(68)34(64)27(13-57)77-51/h19-53,57-73H,5-18H2,1-4H3/t19-,20+,21+,22-,23+,24-,25-,26-,27-,28-,29-,30-,31+,32-,33+,34-,35+,36?,37+,38+,39-,40-,41-,42-,43-,44+,45-,46+,47+,48-,49+,50-,51+,52+,53+,54-,55+,56-/m1/s1 N Key: UVYVLBIGDKGWPX-YCCXZQINSA-N N InChI=1/C56H92O29/c1-19-7-10-56(75-17-19)20(2)31-45(85-56)37(67)32-22-6-5-21-11-26(24(61)12-55(21,4)23(22)8-9-54(31,32)3)76-50-42(72)39(69)44(30(16-60)80-50)81-53-48(47(36(66)29(15-59)79-53)83-49-40(70)33(63)25(62)18-74-49)84-52-43(73)46(35(65)28(14-58)78-52)82-51-41(71)38(68)34(64)27(13-57)77-51/h19-53,57-73H,5-18H2,1-4H3/ t19-,20+,21+,22-,23+,24-,25-,26-,27-,28-,29-,30-,31+,32-,33+,34-,35+,36?,37+,38+,39-,40-,41-,42-,43-,44+,45-,46+,47+,48-,49+,50-,5 1+,52+,53+,54-,55+,56-/m1/s1
SMILES O[C@@H]%11[C@@H](O)[C@H](O)[C@H](O[C@H]%11O[C@@H]1[C@@H](O)[C@@H](O[C@H](CO)[C@@H]1O)O[C@@H]%10[C@@H](O[C@@H]2OC[C@@H](O)[C@H](O)[C@H]2O)C(O)[C@H](O[C@H]%10O[C@@H]3[C@H](O)[C@@H](O)[C@@H](O[C@@H]3CO)O[C@H]9[C@H](O)C[C@@]8(C)[C@@H](CC[C@@H]6[C@@H]8CC[C@@]7([C@@H]5[C@@H](O[C@@]4(OC[C@@H](CC4)C)[C@H]5C)[C@@H](O)[C@@H]67)C)C9)CO)CO
Properties
Chemical formula	C56H92O29
Molar mass	1229.3 g/mol
Melting point	244.0–248.5 °C (471.2–479.3 °F; 517.1–521.6 K)
Chiral rotation ([α]D)	-40 ° (Wavlen: 589.3 nm; Temp: 20 °C)
Hazards
Lethal dose or concentration (LD, LC):
LD50 (median dose)	23 mg/kg (rat, intravenous) 4 mg/kg (mouse, intravenous)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

4 mg/kg (mouse, intravenous)

Digitonin is a steroidal saponin (saraponin) obtained from the foxglove plant Digitalis purpurea. Its aglycone is digitogenin, a spirostan steroid. It has been investigated as a detergent, as it effectively water-solubilizes lipids. As such, it has several potential membrane-related applications in biochemistry, including solubilizing membrane proteins, precipitating cholesterol, and permeabilizing cell membranes.

Digitonin is sometimes confused with the cardiac drug digoxin (sometimes also called digitalis or digitoxin) and both can be extracted from the same source.

Critical micelle concentration = < 0.5 mM
Average micellar weight = 70000
Appearance = White to off-white powder
Boiling Point/Melting Point = 230 to 240 °C
= 60
Rat-LD₅₀ = 4 mg/kg body weight (IVN), 51 mg/kg body weight (ORAL)