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373260

Sigma-Aldrich

Heat Shock Protein Inhibitor I

Heat Shock Protein Inhibitor I, CAS 218924-25-5 blocks the induction of HSP70, HSP72, and HSP105. Blocks the development of thermotolerance in a dose-dependent manner.

Synonym(s):

Heat Shock Protein Inhibitor I, KNK437, N-Formyl-3,4-methylenedioxy-benzylidine-γ-butyrolactam, Hsp70 Induction Inhibitor I

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About This Item

Empirical Formula (Hill Notation):
C13H11NO4
CAS Number:
Molecular Weight:
245.23
UNSPSC Code:
12352202
NACRES:
NA.77

Quality Level

Assay

≥95% (HPLC)

form

powder

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white to light yellow

solubility

DMSO: 3 mg/mL
olive oil: soluble

shipped in

ambient

storage temp.

−20°C

General description

A benzylidene lactam compound that blocks the induction of heat shock proteins HSP70, HSP72, and HSP105. Blocks the development of thermotolerance in a dose-dependent manner. Does not affect the thermosensitivity of nontolerant cells. Reported to be less toxic and more effective than Quercetin (Cat. No. 551600); and unlike Quercetin, it does not have an affect on the activities of PKA, PKC, or PTK.
A benzylidine lactam compound that inhibits the induction of heat shock proteins, including HSP70, HSP72, and HSP105. Blocks the development of thermotolerance in a dose-dependent manner, but does not affect the thermosensitivity of nontolerant cells. Reported to be less toxic and more effective than Quercetin (Cat. No. 551600), and, unlike quercetin, it does not affect the activities of PKA, PKC, and PTK.

Biochem/physiol Actions

Cell permeable: no
Primary Target
Hsp70
Product does not compete with ATP.
Reversible: no

Packaging

Packaged under inert gas

Warning

Toxicity: Harmful (C)

Reconstitution

Following reconstitution, aliquot and freeze at -20°C. Stock solutions are stable for up to 6 weeks at -20°C.

Other Notes

Koishi, M., et al. 2001. Clin. Cancer Res.7, 215.
Yokota, S., et al. 2000. Cancer Res.60, 2942.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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