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Aristolochic acid A
Aristolochic acid A
【Synonyms】Aristolochic acid Ⅰ, Mutong A
【Structural formula】
[Molecular formula and molecular weight] C 17 H 11 NO 7 ; 341.
[Source] North Aristolochia Aristolochia plants Aristolochia contorta Bge.
【Properties】Yellow crystal
This product is soluble in ethanol and methanol
Melting point: decomposed at 279°C
【Purity Check】
TLC
1.
The upper solution of the developing agent toluene- ethyl acetate -water- formic acid (20:10:1:1)
Inspection under daylight and ultraviolet light (365nm)
2.
Developing solvent chloroform - acetone - carboxylic acid (7:3:0.
Inspection under daylight and ultraviolet light (365nm)
High performance liquid chromatography
Column Diamansil TM C 18 , 5um (4.
Mobile phase methanol-0.
Detection 260, 310nm
【Structural identification】388,317,250,223
1685 (C=O), 1595, 1525, 1469, 1371, 1348, 1271, 1248, 1149, 1041, 947, 810, 754
EI-MS m/z: 341 [M] + , 325, 295, 280, 278
1 H-NMR (DMSO) δ: 4.
13 C-NMR (DMSO) δ: 146.
【Storage】Dry and airtightly store
.