Calyxin H

Calyxin H
Product Name Calyxin H
CAS No.: 202596-22-3
Catalog No.: CFN98024
Molecular Formula: C35H34O7
Molecular Weight: 566.7 g/mol
Purity: >=98%
Type of Compound: Chalcones
Physical Desc.: Yellow powder
Targets: HSP (e.g. HSP90)
Source: The seeds of Alpinia katsumadai
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price:
Calyxin H at 1uM can increase the expression of heat shock factor 1 (HSF1), it has a possible application as a heat shock protein (HSP) inducer.
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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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    J Nat Prod. 2011 Oct 28;74(10):2109-15.
    Diarylheptanoids from the seeds of Alpinia katsumadai as heat shock factor 1 inducers.[Pubmed: 21942765]

    METHODS AND RESULTS:
    Seven new diarylheptanoids, (-)-(R)-4″-hydroxyyashabushiketol (1), (3S,5S)-alpinikatin (2), katsumain C (3), 7-epi-katsumain C (4), ent-alpinnanin B (5), ent-alpinnanin A (6), and ent-Calyxin H (8), were isolated from the EtOAc extract of the seeds of Alpinia katsumadai together with three known compounds, alpinnanin B (7), epiCalyxin H (9), and Calyxin H (10). Each isomer mixture of 3 and 4, 5-7, and 8-10 was separated successfully by preparative HPLC using a chiral column. The three isomer mixtures (3 and 4, 5-7, 8-10) at 1 μM increased expression of heat shock factor 1 (HSF1) with fold increases of 1.438, 1.190, and 1.316, respectively, which was accompanied with increased expression of heat shock protein (HSP) 27 (1.403-, 1.250-, and 1.270-fold, respectively) and HSP70 (1.373-, 1.313-, and 1.229-fold, respectively) without cellular cytotoxicity, suggesting a possible application of these compounds as HSP inducers.
    CONCLUSIONS:
    Celastrol was used as a positive control of HSP induction, producing fold increases of 1.066 (HSF1), 1.216 (HSP27), and 1.371 (HSP70) at 1 μM. Compounds 1 and 2 did not affect the induction of HSF1 protein.
    J Nat Prod. 1998 Feb 27;61(2):212-6.
    Calyxin H, Epicalyxin H, and Blepharocalyxins A and B, Novel Diarylheptanoids from the Seeds of Alpinia blepharocalyx[Pubmed: 9548849]

    METHODS AND RESULTS:
    Four unprecedented diarylheptanoids-Calyxin H (1) and epiCalyxin H (2), possessing a diarylheptanoid unit and a chalcone moiety, and blepharocalyxins A (3) and B (4), possessing two diarylheptanoid units and a chalcone moiety-were isolated from the seeds of Alpiniablepharocalyx.
    CONCLUSIONS:
    The structures of 1-4, including absolute stereochemistry, were elucidated by spectroscopic means and after a consideration of their biogenesis.
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