Melittoside | CAS:19467-03-9 | Manufacturer ChemFaces

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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Iridoid, phenylethanoid and flavonoid glycosides from Sideritis trojana.[Pubmed: 22024633]

METHODS AND RESULTS:
From the MeOH extract of Sideritis trojana, a new iridoid glycoside, 10-O-(E)-feruloylMelittoside (1) was obtained in addition to four known iridoid glycosides [Melittoside (2), 10-O-(E)-p-coumaroylMelittoside (3), stachysosides E (4) and G (5)]. Moreover, five phenylethanoid glycosides [verbascoside (6), isoacteoside (7), lamalboside (8), leonoside A (9), isolavandulifolioside (10), three flavone glycosides (isoscutellarein 7-O-[6'''-O-acetyl-β-allopyranosyl-(1→2)]-β-glucopyranoside (11), 4'-O-methyisoscutellarein 7-O-[6'''-O-acetyl-β-allopyranosyl-(1→2)]-β-glucopyranoside (12), 3'-hydroxy-4'-O-methyisoscutellarein 7-O-[6'''-O-acetyl-β-allopyranosyl-(1→2)]-β-glucopyranoside (13) and a benzylalcohol derivative (di-O-methylcrenatin) were obtained and identified. The structures were elucidated on the basis of NMR and HRMS data.
CONCLUSIONS:
All compounds were tested for their antioxidant activity by in vitro TEAC assay and some of them exhibited moderate activity (0.97-1.44 mM) when compared with the reference compound (quercetin 1.86 mM). Glycosides 6-13, the most active compounds in the TEAC assay, were also tested by flow cytometry to evaluate their ability to affect the levels of reactive oxygen species (ROS) in human prostate cancer cells (PC3).

Product Name	Melittoside
CAS No.:	19467-03-9
Catalog No.:	CFN93097
Molecular Formula:	C₂₁H₃₂O₁₅
Molecular Weight:	524.47 g/mol
Purity:	>=98%
Type of Compound:	Iridoids
Physical Desc.:	Powder
Targets:	ROS
Source:	The herbs of Rehmannia glutinosa
Solvent:	DMSO, Pyridine, Methanol, Ethanol, etc.
Price:	$268/20mg