4-Epicommunic acid
Standard reference
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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.
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.
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Phytochemistry.1985; 24(6):1273–1277.
Major resin acids of Pinus nigra needles.[Reference:
WebLink]
Labdane diterpene acids were found to be the major resin acid components in Pinus nigra needles of various seed sources.
The major constituents have been identified as 4-epiimbricataloic acid, manoyl oxide 19-oic acid, 4-Epicommunic acid, and 15-monomethyl pinifolate.
METHODS AND RESULTS:
A GC method was developed to analytically differentiate pinifolic acid from its monomethyl ester in an admixture of both compounds. A minor resin acid was identified as 18-acetoxy-8(17)-labden-15-oic acid.
CONCLUSIONS:
10-Nonacosanol and isoabienol were identified as major constituents of the needle and cortex extractives, respectively.
