478-28-4
Pseudoaspidin
CAS: 478-28-4
Molecular Formula: C25H32O8
478-28-4 - Names and Identifiers
| Name | Pseudoaspidin |
| Synonyms | Pseudoaspidin Pseudoaspidin 1,1'-[Methylenebis(2,4-dihydroxy-6-methoxy-5-methyl-3,1-phenylene)]bis[1-butanone] 1-Butanone, 1,1'-[methylenebis(2,4-dihydroxy-6-methoxy-5-methyl-3,1-phenylene)]bis- |
| CAS | 478-28-4 |
478-28-4 - Physico-chemical Properties
| Molecular Formula | C25H32O8 |
| Molar Mass | 460.52 |
| Melting Point | 142-144°C |
| Boling Point | 647.7±55.0 °C |
| Solubility | Insuluble (4.1E-3 g/L) (25 °C) |
| Appearance | Powder |
| Storage Condition | 2-8℃ |
| MDL | MFCD29049498 |
478-28-4 - Reference Information
| Overview | pseudosamine is a compound extracted from Herba Herba. The whole herb contains a variety of chemical components, such as the pigment, tannic acid, volatile oil, sterol, organic acid, phenol, flavonoids and glycosides. At present, people have tried to use different technical means to separate and identify its chemical composition, however, the phenolic structure of compounds (especially phloroglucinol compounds), the separation and purification method is based on the traditional column chromatography technology, for example, in the article "The separation and identification of the aerial part of the herb of the herb, the petroleum ether extract of the herb was separated and purified by silica gel and Sephadex LH-20 column chromatography, and was eluted with petroleum ether and chloroform, results a butyrylphloroglucinol compound was isolated and identified. |
| preparation | take 150g of Herba Herba to be pulverized into coarse powder, add 1500ml of petroleum ether (60~90 ℃), heat reflux extraction 2 times, 1h each time; Filter, combine the filtrate, recover the solvent, dissolve the residue with 50ml of chloroform, shake extraction with 50ml of 5% sodium hydroxide, discard the chloroform solution, the sodium hydroxide solution was adjusted to pH 1~2 with dilute hydrochloric acid, and was extracted twice with chloroform shaking. The chloroform solution was combined, washed with water, the aqueous solution was discarded, and the chloroform solution was concentrated to obtain 310mg of crude extract of Herba Herba. |
Last Update：2024-04-10 22:29:15
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