1-Ethoxycarbonyl-beta-carboline | CAS:72755-19-2

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

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Preparative separation of alkaloids from picrasma quassioides (D. Don) Benn. By conventional and pH-zone-refining countercurrent chromatography.[Reference: WebLink]

METHODS AND RESULTS:
Two high-speed countercurrent chromatography (HSCCC) modes were compared by separation of major alkaloids from crude extract of Picrasma quassioides. The conventional HSCCC separation was performed with a two-phase solvent system composed of petroleum ether-ethyl acetate-methanol-water (5:5:4.5:5.5, v/v/v/v) with 200 mg loading. pH-Zone-refining CCC was performed with two-phase solvent system composed of petroleum ether-ethyl acetate-n-butanol-water (3:2:7:9, v/v/v/v) where triethylamine (10 mM) was added to the upper organic stationary phase and hydrochloric acid (5 mM) was added to the lower aqueous phase with 2 g loading. From 2 g of crude extract, 87 mg of 5-methoxycanthin-6-one (a), 38 mg of 1-methoxy-β-carboline (b), 134 mg of 1-ethyl-4,8-dimethoxy-β- carboline (c), 74 mg of 1-Ethoxycarbonyl-beta-carboline (d), 56 mg of 1-vinyl-4,8-dimethoxy-β-carboline (e) and 26 mg of 1-vinyl-4-dimethoxy- β- carboline (f) were obtained with purities of over 97.0%.
CONCLUSIONS:
The results indicated that pH-zone-refining CCC is an excellent separations tool at the multigram level.

Product Name	1-Ethoxycarbonyl-beta-carboline
CAS No.:	72755-19-2
Catalog No.:	CFN92123
Molecular Formula:	C₁₄H₁₂N₂O₂
Molecular Weight:	240.3 g/mol
Purity:	>=98%
Type of Compound:	Alkaloids
Physical Desc.:	Yellow powder
Source:	The barks of Picrasma quassioides
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
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