Pinocembrin (Synonyms: (+)-Pinocoembrin; Dihydrochrysin; Galangin flavanone)

Name: Pinocembrin
Brand: MedChemExpress
SKU: HY-N0575
Rating: 5.0 (12 reviews)

Cat. No.: HY-N0575 Purity: 99.68%: Data Sheet
COA

SDS
Handling Instructions
FAQs
Technical Support

Pinocembrin ((+)-Pinocoembrin) is a flavonoid found in propolis, acts as a competitive inhibitor of histidine decarboxylase, and is an effective anti-allergic agent, with antioxidant, antimicrobial and anti-inflammatory properties.

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

CAS No. : 480-39-7

Size	Stock	Quantity

Free Sample (0.1 - 0.2 mg)	Apply Now
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO ready for reconstitution	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in DMSO	In-stock	Estimated Time of Arrival: December 31
Solid
10 mg	In-stock	Estimated Time of Arrival: December 31
25 mg	In-stock	Estimated Time of Arrival: December 31
50 mg	In-stock	Estimated Time of Arrival: December 31
100 mg	Get quote
200 mg	Get quote

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Customer Review

Based on 12 publication(s) in Google Scholar

Other Forms of Pinocembrin:

Pinocembrin (Standard) Get quote

12 Publications Citing Use of MCE Pinocembrin

In Vivo Efficacy Study

Flow Cytometry

IHC

Bio/Physico-chemical Assay

: Pinocembrin purchased from MedChemExpress. Usage Cited in: J Exp Clin Cancer Res. 2025 Dec 24;44(1):324. [Abstract]; C57BL/6 mice with subcutaneous xenografts received regular Pinocembrin (50 μg/g, i.p.) and anti-PD1 treatment. Tumors were harvested after observation and measurement.

: Pinocembrin purchased from MedChemExpress. Usage Cited in: J Exp Clin Cancer Res. 2025 Dec 24;44(1):324. [Abstract]; Flow cytometry analysis of CD3 and CD8 positivity in tumor tissues treated with Pinocembrin (50 μg/g, i.p.) and anti-PD1.

: Pinocembrin purchased from MedChemExpress. Usage Cited in: J Exp Clin Cancer Res. 2025 Dec 24;44(1):324. [Abstract]; IHC detection of CD3 and CD8 positivity in tumor tissues treated with Pinocembrin (50 μg/g, i.p.) and anti-PD1.

: Pinocembrin purchased from MedChemExpress. Usage Cited in: J Exp Clin Cancer Res. 2025 Dec 24;44(1):324. [Abstract]; T24 and MB49 cells were treated with increasing concentrations of Pinocembrin (10, 50, 100, 200 µM); HDAC activity was assessed in cells with different HDAC7 expression levels using an HDAC Activity Assay Kit.

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Biological Activity
Purity & Documentation
References
Customer Review

Description

Cellular Effect

Cell Line	Type	Value	Description	References
A549	EC₅₀	229 μM Compound: 9	Antiproliferative activity against human A549 cells after 72 hrs by MTT assay Antiproliferative activity against human A549 cells after 72 hrs by MTT assay	[PMID: 12027739]
A549	IC₅₀	> 100 μM Compound: 7	Cytotoxicity against human A549 cells after 72 hrs by MTT assay Cytotoxicity against human A549 cells after 72 hrs by MTT assay	[PMID: 19689125]
B16-BL6	EC₅₀	68 μM Compound: 9	Antiproliferative activity against mouse B16-BL6 cells after 72 hrs by MTT assay Antiproliferative activity against mouse B16-BL6 cells after 72 hrs by MTT assay	[PMID: 12027739]
B16-BL6	IC₅₀	> 100 μM Compound: 7	Cytotoxicity against mouse B16-BL6 cells after 72 hrs by MTT assay Cytotoxicity against mouse B16-BL6 cells after 72 hrs by MTT assay	[PMID: 19689125]
B16-F10	IC₅₀	30.1 μM Compound: 4	Cytotoxicity against mouse B16-F10 cells assessed as reduction in cell viability incubated for 72 hrs by XTT assay Cytotoxicity against mouse B16-F10 cells assessed as reduction in cell viability incubated for 72 hrs by XTT assay	[PMID: 27720556]
HL-60	ED₅₀	2.87 μM Compound: 10	Inhibition of chymotrypsin-like activity of purified human 20S proteasome in HL60 cells using N-succinyl-Leu-Leu-Val-Tyr-AMC as substrate pre-incubated for 10 mins by fluorimetric assay Inhibition of chymotrypsin-like activity of purified human 20S proteasome in HL60 cells using N-succinyl-Leu-Leu-Val-Tyr-AMC as substrate pre-incubated for 10 mins by fluorimetric assay	[PMID: 21973101]
HT-1080	EC₅₀	92.4 μM Compound: 9	Antiproliferative activity against human HT1080 cells after 72 hrs by MTT assay Antiproliferative activity against human HT1080 cells after 72 hrs by MTT assay	[PMID: 12027739]
HT-1080	IC₅₀	72.8 μM Compound: 7	Cytotoxicity against human HT1080 cells after 72 hrs by MTT assay Cytotoxicity against human HT1080 cells after 72 hrs by MTT assay	[PMID: 19689125]
HT-29	ED₅₀	> 20 μM Compound: 10	Cytotoxicity against human HT-29 cells after 3 days by sulforhodamine B assay Cytotoxicity against human HT-29 cells after 3 days by sulforhodamine B assay	[PMID: 21973101]
HT-29	ED₅₀	> 20 μM Compound: 10	Induction of apoptosis in human HT-29 cells assessed reduction of mitochondrial membrane potential after 2 hrs by using JC1 staining by fluorescence cell-based assay Induction of apoptosis in human HT-29 cells assessed reduction of mitochondrial membrane potential after 2 hrs by using JC1 staining by fluorescence cell-based assay	[PMID: 21973101]
HeLa	EC₅₀	108 μM Compound: 9	Antiproliferative activity against human HeLa cells after 72 hrs by MTT assay Antiproliferative activity against human HeLa cells after 72 hrs by MTT assay	[PMID: 12027739]
HeLa	IC₅₀	6.1 μg/mL Compound: 8	Antiallergic activity in Ca(2+)-stimulated differentiated human HeLa cells assessed as inhibition of cys-leukotriene release after 6 days by ELISA Antiallergic activity in Ca(2+)-stimulated differentiated human HeLa cells assessed as inhibition of cys-leukotriene release after 6 days by ELISA	[PMID: 19942440]
HeLa	IC₅₀	> 100 μM Compound: 7	Cytotoxicity against human HeLa cells after 72 hrs by MTT assay Cytotoxicity against human HeLa cells after 72 hrs by MTT assay	[PMID: 19689125]
HeLa	IC₅₀	>= 10 μM Compound: pinocembrin	Cytotoxicity against human HeLa cells by MTT assay Cytotoxicity against human HeLa cells by MTT assay	[PMID: 19278239]
JEG-3	CC₅₀	250.7 μM Compound: 52	Cytotoxicity against human JEG3 cells by alamarBlue assay Cytotoxicity against human JEG3 cells by alamarBlue assay	[PMID: 31549836]
KB	IC₅₀	99.16 μM Compound: 5a	Cytotoxicity against human KB cells after 3 days by Resazurin Microplate Assay Cytotoxicity against human KB cells after 3 days by Resazurin Microplate Assay	[PMID: 20362442]
NCI-H187	IC₅₀	95.53 μM Compound: 5a	Cytotoxicity against human NCI-H187 cells after 5 days by Resazurin Microplate Assay Cytotoxicity against human NCI-H187 cells after 5 days by Resazurin Microplate Assay	[PMID: 20362442]
RAW264.7	IC₅₀	18.1 μM Compound: 26	Antiinflammatory activity in mouse RAW264.7 cells assessed as inhibition of LPS-induced nitric oxide production after 24 hrs by Griess assay Antiinflammatory activity in mouse RAW264.7 cells assessed as inhibition of LPS-induced nitric oxide production after 24 hrs by Griess assay	[PMID: 23743282]

In Vitro

Pinocembrin (5, 10, 25, 50, 100 or 200 μM, 24 hours) significantly reduces cell viability of RBL-2H3 cells^[1].
Pinocembrin (25 or 50 μM) suppresses iNOS, PGE-2 and COX-2 levels, increases p38-Mapk and IкB-α, and inhibits phosphorylation of IкB-α^[1].

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

Cell Viability Assay^[1]

Cell Line:	RBL-2H3 cells
Concentration:	5, 10, 25, 50, 100 or 200 µM
Incubation Time:	24 hours
Result:	Decreased cell viability by ∼50% at ≥ 100 µM. Showed 75% cell viability at lower concentrations.

Clinical Trial

Molecular Weight

256.25

Formula

C₁₅H₁₂O₄

CAS No.

480-39-7

Appearance

Solid

Color

White to yellow

SMILES

O=C1C[C@@H](C2=CC=CC=C2)OC3=CC(O)=CC(O)=C13

Structure Classification

Initial Source

Animals

honeybee propolis

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	2 years
	-20°C	1 year

Solvent & Solubility

In Vitro:

DMSO : 83.33 mg/mL (325.19 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	3.9024 mL	19.5122 mL	39.0244 mL
5 mM	0.7805 mL	3.9024 mL	7.8049 mL
10 mM	0.3902 mL	1.9512 mL	3.9024 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)

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

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

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: ≥ 2.08 mg/mL (8.12 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: ≥ 2.08 mg/mL (8.12 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.08 mg/mL (8.12 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

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: 99.68%

Select Batch:

Data Sheet (275 KB) SDS (393 KB)

COA (249 KB) HNMR (275 KB) RP-HPLC (227 KB) LCMS (94 KB)

Handling Instructions (2659 KB)

References

[1]. Hanieh H, et al. Pinocembrin, a novel histidine decarboxylase inhibitor with anti-allergic potential in in vitro. Eur J Pharmacol. 2017 Nov 5;814:178-186. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	3.9024 mL	19.5122 mL	39.0244 mL	97.5610 mL
	5 mM	0.7805 mL	3.9024 mL	7.8049 mL	19.5122 mL
	10 mM	0.3902 mL	1.9512 mL	3.9024 mL	9.7561 mL
	15 mM	0.2602 mL	1.3008 mL	2.6016 mL	6.5041 mL
	20 mM	0.1951 mL	0.9756 mL	1.9512 mL	4.8780 mL
	25 mM	0.1561 mL	0.7805 mL	1.5610 mL	3.9024 mL
	30 mM	0.1301 mL	0.6504 mL	1.3008 mL	3.2520 mL
	40 mM	0.0976 mL	0.4878 mL	0.9756 mL	2.4390 mL
	50 mM	0.0780 mL	0.3902 mL	0.7805 mL	1.9512 mL
	60 mM	0.0650 mL	0.3252 mL	0.6504 mL	1.6260 mL
	80 mM	0.0488 mL	0.2439 mL	0.4878 mL	1.2195 mL
	100 mM	0.0390 mL	0.1951 mL	0.3902 mL	0.9756 mL

Pinocembrin Related Classifications

Help & FAQs

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.

Keywords:

Pinocembrin480-39-7(+)-Pinocoembrin Dihydrochrysin Galangin flavanoneBacterialReactive Oxygen Species (ROS)AutophagyInhibitorinhibitorinhibit

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Pinocembrin (Synonyms: (+)-Pinocoembrin; Dihydrochrysin; Galangin flavanone)

Customer Review

Other Forms of Pinocembrin:

Pinocembrin Related Antibodies

12 Publications Citing Use of MCE Pinocembrin

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•Related Screening Libraries:

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Biological Activity

Purity & Documentation

References

Customer Review

Pinocembrin Related Antibodies

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Complete Stock Solution Preparation Table

Pinocembrin Related Classifications

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