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  2. Bacterial Antibiotic
  3. 8-Hydroxyquinoline

8-Hydroxyquinoline  (Synonyms: 8-Quinolinol)

Cat. No.: HY-B1005 Purity: 99.96%
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8-Hydroxyquinoline (8-Quinolinol) is a lipophilic metal chelator that can be used as a fungicide .8-Hydroxyquinoline shows the MIC range of 27.56-55.11 μM (4-8 μg/mL) against the clinical isolates of Neisseria gonorrhoeae. 8-Hydroxyquinoline can bind to copper form complexes and transport copper into cells. 8-Hydroxyquinoline increases in the number of micronucleated polychromatic erythrocytes and can also make hair depigmented in mice.

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

8-Hydroxyquinoline Chemical Structure

8-Hydroxyquinoline Chemical Structure

CAS No. : 148-24-3

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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of 8-Hydroxyquinoline:

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  • Biological Activity

  • Purity & Documentation

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Description

8-Hydroxyquinoline (8-Quinolinol) is a lipophilic metal chelator that can be used as a fungicide .8-Hydroxyquinoline shows the MIC range of 27.56-55.11 μM (4-8 μg/mL) against the clinical isolates of Neisseria gonorrhoeae. 8-Hydroxyquinoline can bind to copper form complexes and transport copper into cells. 8-Hydroxyquinoline increases in the number of micronucleated polychromatic erythrocytes and can also make hair depigmented in mice[1][2][3][4][5].

Cellular Effect
Cell Line Type Value Description References
A549 IC50
31.25 μM
Compound: 8HQ
Cytotoxicity against human A549 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
Cytotoxicity against human A549 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
[PMID: 33453603]
A549 IC50
32.63 μM
Compound: 8HQ
Cytotoxicity against human A549 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
Cytotoxicity against human A549 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
[PMID: 33453603]
A549 IC50
6.58 μM
Compound: 8HQ
Cytotoxicity against human A549 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
Cytotoxicity against human A549 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
[PMID: 33453603]
FM3A IC50
2.1 μM
Compound: 34
Inhibit growth of FM3A cells by 50%
Inhibit growth of FM3A cells by 50%
[PMID: 1732542]
HCT-116 IC50
21.09 μM
Compound: 8HQ
Cytotoxicity against human HCT-116 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
Cytotoxicity against human HCT-116 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
[PMID: 33453603]
HCT-116 IC50
26.3 μM
Compound: 8HQ
Cytotoxicity against human HCT-116 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
Cytotoxicity against human HCT-116 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
[PMID: 33453603]
HCT-116 IC50
6 μM
Compound: 4
Antiproliferative activity against human HCT116 cells after 72 hrs by Cell Titer-Glo assay
Antiproliferative activity against human HCT116 cells after 72 hrs by Cell Titer-Glo assay
[PMID: 28191850]
HCT-116 IC50
7.25 μM
Compound: 8HQ
Cytotoxicity against human HCT-116 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
Cytotoxicity against human HCT-116 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
[PMID: 33453603]
HeLa IC50
> 50 μM
Compound: 8HQ
Cytotoxicity against human HeLa cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
Cytotoxicity against human HeLa cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
[PMID: 33453603]
HeLa IC50
> 50 μM
Compound: 8HQ
Cytotoxicity against human HeLa cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
Cytotoxicity against human HeLa cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
[PMID: 33453603]
HeLa IC50
13.5 μM
Compound: HQ
Cytotoxicity against human HeLa cells assessed as reduction in cell viability after 48 hrs by resazurin assay
Cytotoxicity against human HeLa cells assessed as reduction in cell viability after 48 hrs by resazurin assay
[PMID: 27191619]
HeLa IC50
35.65 μM
Compound: 8HQ
Cytotoxicity against human HeLa cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
Cytotoxicity against human HeLa cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
[PMID: 33453603]
HepG2 IC50
> 50 μM
Compound: 8HQ
Cytotoxicity against human HepG2 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
Cytotoxicity against human HepG2 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
[PMID: 33453603]
HepG2 IC50
> 50 μM
Compound: 8HQ
Cytotoxicity against human HepG2 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
Cytotoxicity against human HepG2 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
[PMID: 33453603]
HepG2 IC50
32.1 μM
Compound: 8HQ
Cytotoxicity against human HepG2 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
Cytotoxicity against human HepG2 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
[PMID: 33453603]
KB IC50
< 2.1 μM
Compound: 34
Inhibit growth of KB cells by 50%
Inhibit growth of KB cells by 50%
[PMID: 1732542]
MCF7 IC50
> 50 μM
Compound: 8HQ
Cytotoxicity against human MCF7 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
Cytotoxicity against human MCF7 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
[PMID: 33453603]
MCF7 IC50
> 50 μM
Compound: 8HQ
Cytotoxicity against human MCF7 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
Cytotoxicity against human MCF7 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
[PMID: 33453603]
MCF7 IC50
21.06 μM
Compound: 8HQ
Cytotoxicity against human MCF7 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
Cytotoxicity against human MCF7 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
[PMID: 33453603]
MES-SA IC50
5.04 μM
Compound: 12
Cytotoxicity against human MES-SA cells assessed as cell growth inhibition incubated for 72 hrs by PrestoBlue reagent based cell viability assay
Cytotoxicity against human MES-SA cells assessed as cell growth inhibition incubated for 72 hrs by PrestoBlue reagent based cell viability assay
[PMID: 35613553]
MES-SA/Dx5 IC50
3.04 μM
Compound: 12
Cytotoxicity against multidrug resistance human MES-SA/Dx5 cells assessed as cell growth inhibition incubated for 72 hrs by PrestoBlue reagent based cell viability assay
Cytotoxicity against multidrug resistance human MES-SA/Dx5 cells assessed as cell growth inhibition incubated for 72 hrs by PrestoBlue reagent based cell viability assay
[PMID: 35613553]
PANC-1 IC50
24.52 μM
Compound: 8HQ
Cytotoxicity against human PANC-1 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
Cytotoxicity against human PANC-1 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
[PMID: 33453603]
PANC-1 IC50
30.44 μM
Compound: 8HQ
Cytotoxicity against human PANC-1 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
Cytotoxicity against human PANC-1 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
[PMID: 33453603]
PANC-1 IC50
7.43 μM
Compound: 8HQ
Cytotoxicity against human PANC-1 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
Cytotoxicity against human PANC-1 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
[PMID: 33453603]
PC-3 IC50
> 50 μM
Compound: 8HQ
Cytotoxicity against human PC-3 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
Cytotoxicity against human PC-3 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
[PMID: 33453603]
PC-3 IC50
14.36 μM
Compound: 8HQ
Cytotoxicity against human PC-3 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
Cytotoxicity against human PC-3 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
[PMID: 33453603]
PC-3 IC50
32.01 μM
Compound: 8HQ
Cytotoxicity against human PC-3 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
Cytotoxicity against human PC-3 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
[PMID: 33453603]
Sf9 IC50
1.27 μM
Compound: 21
Inhibition of recombinant full length human N-terminal GST/His6-tagged methionine aminopeptidase 2 expressed in baculovirus infected sf9 cells using methionylprolyl-p-nitroanilide as substrate preincubated for 20 mins followed by substrate addition measur
Inhibition of recombinant full length human N-terminal GST/His6-tagged methionine aminopeptidase 2 expressed in baculovirus infected sf9 cells using methionylprolyl-p-nitroanilide as substrate preincubated for 20 mins followed by substrate addition measur
[PMID: 28089350]
SW1990 IC50
> 50 μM
Compound: 8HQ
Cytotoxicity against human SW1990 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
Cytotoxicity against human SW1990 cells assessed as reduction in cell viability measured after 48 hrs in presence of FeCl3 by MTT assay
[PMID: 33453603]
SW1990 IC50
10.23 μM
Compound: 8HQ
Cytotoxicity against human SW1990 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
Cytotoxicity against human SW1990 cells assessed as reduction in cell viability measured after 48 hrs in presence of CuCl2 by MTT assay
[PMID: 33453603]
SW1990 IC50
32.1 μM
Compound: 8HQ
Cytotoxicity against human SW1990 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
Cytotoxicity against human SW1990 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay
[PMID: 33453603]
In Vitro

8-Hydroxyquinoline (8HQ) (Compd 1) shows cytotoxicity in MRC-5 cells with an IC50 of 6.27 μM[1].
8-Hydroxyquinoline (8-OHQ) (Compd 1) (mixture of CuCl2 at 10.0 μM, 1 hour) binds to copper and form complexes can facilitate transport of copper into human breast cancer DCIS cells[2].
8-Hydroxyquinoline (mixture of CuCl2 at 1-20 μM; 1 or 8 hour) binds to copper and form complexes induces cell death with a time and dose-dependent manner in DCIS cells[2].
8-Hydroxyquinoline (mixture of CuCl2 at 1-5 μM, 2-12 hour) inhibits proteasomal chymotrypsin-like activity[2].
8-Hydroxyquinoline (0-100 μM, 30 min) acts to inhibit inflammation through inhibition of NO production and iNOS expression through blockade of C/EBPb DNA-binding activity and NF-jB activation in Raw 264.7 cells[3].

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

Cell Viability Assay[2]

Cell Line: DCIS cells
Concentration: 1,2.5,5,10,20 μM
Incubation Time: 1 or 8 hour
Result: Binding to copper and form complexes make the cells rounded up and detached, induces cell death with in a concentration- and time-dependent manner.
8-OHQ- and CQ-Cu, but not mixture of their analogues and Cu, could induce cancer cell death in a concentration- and time-dependent manner.

Western Blot Analysis[2]

Cell Line: DCIS cells
Concentration: 1,2.5,5 μM
Incubation Time: 0,2,4,8,12 hours
Result: Mixture of CuCl2 inhibited the CT-like activity in a concentration- and time-dependent manner.
Mixture of CuCl2 decreased proteasomal activity and increased ubquititinated proteins and Bax accumulated in a time-dependent manner.

RT-PCR[3]

Cell Line: Lipopolysaccharides (HY-D1056)-stimulated Raw 264.7 cells
Concentration: 25,50,75,100 μM
Incubation Time: 30 min
Result: Inhibited of LPS-induced NO and iNOS expression.br/> Inhibits transcription of iNOS.
Had not affect phosphorylation of MAPKs.
Inhibited NF-jB-binding activity and C/EBPb-binding activity.
In Vivo

8-Hydroxyquinoline (HOQ) (25-100 mg/kg, i.p.,single dose) results in a significant dose-related increase in the number of micronucleated polychromatic erythrocytes (MPCE) in CD1 mice[4].
8-Hydroxyquinoline (8-HQ) (0.3%, skin administration, 4 times weekly) causes depigmented hair to grow in patterns which change with time in mice[5].

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

Animal Model: CD1 mice[4]
Dosage: 25,50,100 mg/kg
Administration: Intraperitoneal injection (i.p.)
Result: Resulted in a significant dose-related increase in the number of micronucleated polychromatic erythrocytes (MPCE) at the 24 h samplingtime for all doses tested.
Animal Model: C57BL mice[5]
Dosage: 0.3% 4 times weekly
Administration: Skin administration
Result: Caused depigmented hair to grow in patterns which change with time.
Sufficiently frequent applications result in virtually complete depigmentation in young adult C57BL female mice, while single application causes isolated bands of depigmented hair.
Molecular Weight

145.16

Formula

C9H7NO

CAS No.
Appearance

Solid

Color

Off-white to light brown

SMILES

OC1=C2N=CC=CC2=CC=C1

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Store at room temperature 3 years

In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (344.45 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 6.8889 mL 34.4447 mL 68.8895 mL
5 mM 1.3778 mL 6.8889 mL 13.7779 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

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

    Solubility: ≥ 2.5 mg/mL (17.22 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (17.22 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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(per animal)

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Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
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Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.99%

References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 6.8889 mL 34.4447 mL 68.8895 mL 172.2237 mL
5 mM 1.3778 mL 6.8889 mL 13.7779 mL 34.4447 mL
10 mM 0.6889 mL 3.4445 mL 6.8889 mL 17.2224 mL
15 mM 0.4593 mL 2.2963 mL 4.5926 mL 11.4816 mL
20 mM 0.3444 mL 1.7222 mL 3.4445 mL 8.6112 mL
25 mM 0.2756 mL 1.3778 mL 2.7556 mL 6.8889 mL
30 mM 0.2296 mL 1.1482 mL 2.2963 mL 5.7408 mL
40 mM 0.1722 mL 0.8611 mL 1.7222 mL 4.3056 mL
50 mM 0.1378 mL 0.6889 mL 1.3778 mL 3.4445 mL
60 mM 0.1148 mL 0.5741 mL 1.1482 mL 2.8704 mL
80 mM 0.0861 mL 0.4306 mL 0.8611 mL 2.1528 mL
100 mM 0.0689 mL 0.3444 mL 0.6889 mL 1.7222 mL
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8-Hydroxyquinoline Related Classifications

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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8-Hydroxyquinoline
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