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[CAS NO. 23567-23-9] Procyanidin B3

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Catalog:	HY-N2345
Brand:	MCE
CAS:	23567-23-9

Overview

MDL	MFCD13186802
Molecular Weight	578.52
Molecular Formula	C30H26O12
SMILES	O[C@@H]1[C@@H](C2=CC=C(O)C(O)=C2)OC3=CC(O)=CC(O)=C3[C@H]1C4=C5C(C[C@H](O)[C@@H](C6=CC=C(O)C(O)=C6)O5)=C(O)C=C4O

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

Summary

Procyanidin B3 is a natural product, acts as a specific HAT inhibitor, binds to the other site of p300 instead of the active site, selectively inhibits p300-mediated androgen receptor acetylation. Procyanidin B3 has no effect on HDAC or HMT (histone methyltransferase) ^[1] .

IC50 & Target

p300 ^[1]

Appearance

Solid

Source

Plants
other families

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 50 mg/mL ( 86.43 mM ; ultrasonic and warming and heat to 60°C)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.7285 mL	8.6427 mL	17.2855 mL
5 mM	0.3457 mL	1.7285 mL	3.4571 mL
10 mM	0.1729 mL	0.8643 mL	1.7285 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: ≥ 2.5 mg/mL (4.32 mM); Clear solution
2.

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

Solubility: ≥ 2.5 mg/mL (4.32 mM); Clear solution

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

References

[1] Choi KC, et al. Procyanidin B3, an inhibitor of histone acetyltransferase, enhances the action of antagonist for prostate cancer cells via inhibition of p300-dependent acetylation of androgen receptor. Biochem J. 2011 Jan 1;433(1):235-44.

Synonyms

[4,8′-Bi-2H-1-benzopyran]-3,3′,5,5′,7,7′-hexol, 2,2′-bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro-, (2R,2′R,3S,3′S,4S)-

[4,8′′-Biflavan]-3,3′,3′′,3′′′,4′,4′′′,5,5′′,7,7′′-decol, stereoisomer

[4,8′-Bi-2H-1-benzopyran]-3,3′,5,5′,7,7′-hexol, 2,2′-bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro-, [2R-[2α,3β,4α(2′R*,3′S*)]]-

(2R,2′R,3S,3′S,4S)-2,2′-Bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro[4,8′-bi-2H-1-benzopyran]-3,3′,5,5′,7,7′-hexol

Procyanidin B₃

Procyanidol B₃

Proanthocyanidin B₃

(+)-Catechin-(4α→8)-(+)-catechin

Catechin-(4α→8)-catechin

(-)-Procyanidin B₃

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