Qianhucoumarin A

Qianhucoumarin A
Product Name Qianhucoumarin A
CAS No.: 150135-35-6
Catalog No.: CFN92709
Molecular Formula: C19H20O6
Molecular Weight: 344.4 g/mol
Purity: >=98%
Type of Compound: Coumarins
Physical Desc.: Powder
Source: The herbs of Peucedanum harry-smithii var. subglabrum
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price: $318/5mg
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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    Isolation and structure elucidation of qianhucoumarin A.[Pubmed: 8249601]
    Seven compounds were isolated from the traditional Chinese Medicine Qianhu, roots of Peucedanum praeruptorum Dunn.
    METHODS AND RESULTS:
    Their structures were identified as psoralen (II), 5-methoxypsoralen (III), 8-methoxypsoralen (IV), pteryxin (V), peucedanocoumarin II (VI), beta-sitosterol (VII) and Qianhucoumarin A (VIII) by physico-chemical constants and spectral analyses (UV, IR, 1HNMR, 13CNMR, EIMS). Qianhucoumarin A is a new compound with the structure of 3'(R)-hydroxy-4'(R)-tigloyloxy-3',4'-dihydroseslin. Its absolute configurations were determined by chemical correlation with known compounds.
    CONCLUSIONS:
    II, III, IV and Qianhucoumarin A were first isolated from this plant.
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