[CAS NO. 287194-40-5]  (-)-DHMEQ

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PRODUCTS SPECIFICATIONS [287194-40-5]

Distributor
Catalog
AS900679
Brand
Arctom Scientific
CAS
287194-40-5

DESCRIPTION [287194-40-5]

Overview

MDLMFCD11100254
Molecular Weight261.23
Molecular FormulaC13H11NO5
SMILESO=C1[C@@H](O2)[C@@H]2[C@@H](O)C(NC(C3=C(O)C=CC=C3)=O)=C1

For research use only. We do not sell to patients.


Summary

(-)-DHMEQ (Dehydroxymethylepoxyquinomicin) is a potent, selective and irreversible NF-κB inhibitor that covalently binds to a cysteine residue. (-)-DHMEQ inhibits nuclear translocation of NF-κB and shows anti-inflammatory and anticancer activity [1] [2] [3] .


IC50 & Target

RelA

RelB


In Vitro

(-)-DHMEQ (Dehydroxymethylepoxyquinomicin; 2-10 μg/mL; 12-48 hours) treatment significantly reduces the viability of all cell lines in a dose- and time-dependent manner, whereas the effect is not significant in a control cell line K562 without constitutive NF-κB activity [2] .
(-)-DHMEQ (10 μg/mL; 0-48 hours; TL-Om1, MT-1 and K562 cells) treatment significantly increases the Annexin V-positive cells in MT-1 and TL-Om1 cell lines [2] .
(-)-DHMEQ (10 μg/mL; 4-16 hours; MT-1 cells) treatment down-regulates Bcl-xL, Bcl-2, c-myc, cyclin D1, Rb, and p53, and up-regulates proapoptotic genes such as caspase-3, -8, and-9 [2] .
(-)-DHMEQ treatment increases cells in G0 /G1 phase in a time-dependent manner, demonstrating antiproliferative effects of (-)-DHMEQ [2] .
(-)-DHMEQ binds to p65, cRel, RelB, and p50, but not to p52 at specific cysteine residues. (-)-DHMEQ inhibits not only DNA-binding of RelB, but also its interaction to importin. (-)-DHMEQ also induces instability of RelB [1] .

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Proliferation Assay [2]

Cell Line: TL-Om1, MT-1, KK-1, ST-1 and K562 cells
Concentration: 2 μg/mL, 5 μg/mL, 10 μg/mL
Incubation Time: 12 hours, 24 hours, 48 hours
Result: Significantly reduced the viability of all cell lines in a dose- and time-dependent manner.

Apoptosis Analysis [2]

Cell Line: TL-Om1, MT-1 and K562 cells
Concentration: 10 μg/mL
Incubation Time: 0 hours, 24 hours, 48 hours
Result: Annexin V-positive cells were significantly increased after 24 to 48 hours.

Western Blot Analysis [2]

Cell Line: MT-1 cells
Concentration: 10 μg/mL
Incubation Time: 4 hours, 8 hours, 16 hours
Result: Annexin V-positive cells were significantly increased after 24 to 48 hours.

In Vivo

(-)-DHMEQ (Dehydroxymethylepoxyquinomicin; 4 mg/kg or 12 mg/kg; intraperitoneal injection; on day 0 and 3 times a week; for one month; SCID mice) treatment shows a significant increase in the survival rate in mice [2] .

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Male C.B17-scid/scid (5 weeks old) mice injected with MT-2 cells [2]
Dosage: 4 mg/kg or 12 mg/kg
Administration: Intraperitoneal injection; on day 0 and 3 times a week; for one month
Result: Showed a significant increase in the survival rate in mice.

Appearance

Solid


Shipping

Room temperature in continental US; may vary elsewhere.


Storage

-20°C, stored under nitrogen

* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)


Solvent & Solubility

In Vitro:

DMSO : 50 mg/mL ( 191.40 mM ; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.8280 mL 19.1402 mL 38.2804 mL
5 mM 0.7656 mL 3.8280 mL 7.6561 mL
10 mM 0.3828 mL 1.9140 mL 3.8280 mL
* Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one: 10% DMSO >> 40% PEG300 >> 5% Tween-80 >> 45% saline

    Solubility: 5 mg/mL (19.14 mM); Suspended solution; Need ultrasonic

* All of the co-solvents are available by MCE.