PAC1

Synonym(s):(4-Benzylpiperazino)acetic acid (3-allyl-2-hyroxybenzylidene)hydrazide;1-Piperazineacetic acid, 2-(phenylmethyl)-,[[2-hydroxy-3-(2-propenyl)phenyl]methylene]hyrrazide;Dual specificity protein phosphatase 2;Dual specificity protein phosphatase PAC-1;DUSP2

CAS NO.：315183-21-2
Empirical Formula: C23H28N4O2
Molecular Weight: 392.49
MDL number: MFCD03302441
SAFETY DATA SHEET (SDS)
Update Date: 2026-03-13 15:00:32

What is PAC1?

Description

PAC-1 (315183-21-2) is a procaspase-activating compound, directly activating procaspase-3, producing caspase-3, EC50=0.22 μM.1 It is less potent at activating procaspase-7, EC50=4.5 μM. It induces apoptosis in a variety of cancer cell lines. The mechanism of activation involves sequestering inhibitory zinc ions thus allowing procaspase-3 to autoactivate.2?? Sensitizes cancer cells to various chemotherapeutic agents.3

The Uses of PAC1

PAC-1 is a potent procaspase-3 activator with EC50 of 0.22 μM.

What are the applications of Application

PAC 1 is a procaspase-activating compound

Biological Activity

Procaspase-activating compound; activates procaspase-3 to produce caspase-3 (EC 50 = 0.22 μ M). Also activates procaspase-7 in a less efficient manner (EC 50 = 4.5 μ M). Pro-apoptotic; induces apoptosis in both cancerous and non-cancerous cells dependent on procaspase-3 concentration (IC 50 values are 0.003-1.41 and 5.02-9.98 μ M respectively).

Storage

+4°C

References

1) Putt et al. (2006), Small-molecule activation of procaspase-3 to caspase-3 as a personalized anticancer strategy; Nat. Chem. Biol., 2 543 2) Peterson et al. (2009), PAC-1 activates procaspase-3 in vitro through relief of zinc-mediated inhibition; J. Mol. Biol., 388 144 3) Bolham et al. (2016), Small-Molecule Procaspase-3 Activation Sensitizes Cancer to Treatment with diverse Chemotherapeutics; ACS Cent. Sci., 2 545

Properties of PAC1

Density	1.14
storage temp.	Store at +4°C
solubility	DMSO: ≥10mg/mL
form	solid
pka	8.82±0.40(Predicted)
color	white
Stability:	Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol must be stored under inert gas at -80°C and will be stable for up to 2 months.

Safety information for PAC1

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07 Environment GHS09
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H400:Hazardous to the aquatic environment, acute hazard
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.