19-Hydroxybufalin | CAS:39844-86-5 | Manufacturer ChemFaces

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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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The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.

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Isolation and Characterization of New Bufotoxins from the Skin of Bufo melanostictus SCHNEIDER.[Reference: WebLink]

The occurrence of new bufotoxins, in which L-histidine, L-3-methylhistidine, or L-1-methylhistidine replaces the arginine residue of hitherto known 'bufotoxin', in the skin of the Formosan toad, Bufo melanostrictus SCHNEIDER, is reported.
METHODS AND RESULTS:
Five novel bufotoxins, bufotalin 3-suberoyl-L-histidine, -3-methylhistidine and -1-methylhistidine esters and 19-Hydroxybufalin 3-suberoyl-L-histidine and -3-methylhistidine esters, were separated by usual chromatographic methods including reversed phase high-performance liquid chromatography, and their structures were elucidated by degradative and synthetic means.

Product Name	19-Hydroxybufalin
CAS No.:	39844-86-5
Catalog No.:	CFN91020
Molecular Formula:	C₂₄H₃₄O₅
Molecular Weight:	402.52 g/mol
Purity:	>=98%
Type of Compound:	Steroids
Physical Desc.:	Powder
Source:	The glandular body of Bufo bufo gargarizans Cantor.
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price:	$198/5mg