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Merck

M168

Methyllycaconitine citrate salt

From Delphinium brownii seeds, ≥96% (HPLC), α7 nicotinic acetylcholine receptor (α7 nAChR) antagonist

Synonym(s):

MLA, [1α,4(S),6β,14α,16β]-20-Ethyl-1,6,14,16-tetramethoxy-4-[[[2-(3-methyl-2,5-dioxo-1-pyrrolidinyl)benzoyl]oxy]methyl]aconitane-7,8-diol citrate salt

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About This Item

Empirical Formula (Hill Notation):
C37H50N2O10 · xC6H8O7
CAS Number:
112825-05-5
Molecular Weight:
682.80 (salt-free basis)
UNSPSC Code:
12352200
PubChem Substance ID:
24896681
NACRES:
NA.77
MDL number:
MFCD00153837

Key Documents

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Product Name

Methyllycaconitine citrate salt, from Delphinium brownii seeds, ≥96% (HPLC)

SMILES string

O=C(OC[C@]12[C@@]([C@]3([C@H](CC1)OC)[C@@H]4N(C2)CC)([H])[C@@H]([C@]4(O)[C@]5(O)[C@]6([H])[C@@]3([H])C[C@@]([C@H](C5)OC)([H])[C@@H]6OC)OC)C7=CC=CC=C7N8C([C@@H](C)CC8=O)=O.OC(CC(CC(O)=O)(C(O)=O)O)=O

InChI

1S/C37H50N2O10.C6H8O7/c1-7-38-17-34(18-49-32(42)20-10-8-9-11-23(20)39-26(40)14-19(2)31(39)41)13-12-25(46-4)36-22-15-21-24(45-3)16-35(43,27(22)28(21)47-5)37(44,33(36)38)30(48-6)29(34)36;7-3(8)1-6(13,5(11)12)2-4(9)10/h8-11,19,21-22,24-25,27-30,33,43-44H,7,12-18H2,1-6H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)/t19-,21+,22+,24-,25-,27+,28-,29+,30-,33?,34-,35+,36-,37+;/m0./s1

InChI key

INBLZNJHDLEWPS-DDIMIZGISA-N

biological source

Delphinium brownii seeds

assay

≥96% (HPLC)

color

white

solubility

H2O: 42 mg/mL

storage temp.

−20°C

Quality Level

100

Application

Methyllycaconitine citrate salt has been used as an α7 nicotinic acetylcholine receptor (α7 nAChR) antagonist:
  • to study its effects on inflammatory response in rats post nicotine treatment
  • to block the activity of galantamine
  • to study its effects on the hepatic branch of the vagus nerve (hVNS) in rats

Biochem/physiol Actions

Methyllycaconitine (MLA) is an α7 nicotinic acetylcholine receptor (α7 nAChR) antagonist. It is a norditerpenoid alkaloid synthesized by several species of Delphinium. MLA binds to the binding site of neuronal α-bungarotoxin. Low doses of MLA are associated with improvement of cognition in animals.

Features and Benefits

This compound is featured on the Acetylcholine Receptors (Nicotinic) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
046M4732V
074M4746V
054M4702V
024M4754V
043M4705V

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