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.
Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
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.
Chemical & Pharmaceutical Bulletin, 2008 , 34 (7) :3033-7.
Studies on the Agalwood (Jinko). VI. : Structures of Three 2-(2-Phenylethyl)-5,6,7,8-tetrahydrochromone Derivatives, AH_<1A>, AH_<2a> and AH_<2b>[Reference:
WebLink]
Three new kinds of phenylethyl chromone derivatives, named AH_<1A>, AH_<2a> and AH_<2b>, were isolated from the crude AH_1 (Agarotetrol) and AH_2 (isoAgarotetrol) fractions of agalwood (Jinko)from Kalimantan. AH<1A> separated from the crude AH_1 fraction through the process of acetylation was characterized as 2-[2-(4-methoxyphenyl)ethyl]-5α, 6β, 7β, 8α-tetraacetoxy-5,6,7,8-tetrahydro-chromone, and AH_<2a> and AH<2b>, from crude AH_2 fraction, were established to be 2[2-(4-methoxyphenyl)ethyl]- and 2-[2-(2-hydroxyphenyl)ethyl]-5α, 6β, 7α, 8β-tetrahydroxy-5,6,7,8-tetrahydrochromone, respectively.
