Determine the necessary mass, volume, or concentration for preparing a solution.
| Activity Type | Activity Value -log(M) | Mechanism of Action | Activity Reference | Publications (PubMed IDs) |
|---|
Moligand™, 10mM in DMSO Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at -80°C Ships Dry ice packs + Cold packs Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Information
PAC-1 is a potentprocaspase-3activator withEC50of 0.22 μM and the first small molecule known to directly activate procaspase-3 to caspase-3.
In vitro
PAC-1 activates procaspase-7 in a less efficient manner with EC50 of 4.5 μM. Elevated caspase 3 level in cancer cell lines allows PAC-1 to selectively induce apoptosis in a manner proportional to procaspase-3 concentration with IC50 of 0.35 μM for NCI-H226 cells to ~3.5 μM for UACC-62 cells. PAC-1 induces apoptosis in the primary cancerous cells with IC50 values of 3 nM to 1.41 μM, more potently than in the adjacent noncancerous cells with IC50 of 5.02 μM to 9.98 μM, which is also directly related to the distinct procaspase-3 concentration. PAC-1 activates procaspase-3 by chelating zinc ions, thus relieving the zinc-mediated inhibition and allowing procaspase-3 to auto-activate itself to caspase-3. PAC-1 is capable to induce cell death in Bax/Bak double-knockout cells and Bcl-2 and Bcl-xL-overexpressing cells with the same efficacy as its wild-type counterpart in a delayed manner. PAC-1 induces cytochrome c release in a caspase-3 independent manner, which subsequently triggers downstream caspase-3 activation and cell death. PAC-1 can not induce cell death and caspase-3 activation in Apaf-1 knockout cells, suggesting that apoptosome formation is essential for caspase-3 activation by PAC-1-mediated cell death.
In vivo
Administration of PAC-1 at 5 mg with low and steady releasing significantly inhibits the growth of ACHN renal cancer xenograft in mice. Oral administration of PAC-1 (50 or 100 mg/kg) significantly retards tumor growth of NCI-H226 lung cancer xenograft in a dose-dependent manner, and markedly prevents the cancer cells from infiltrating the lung tissue. The in vivo anti-tumor effect of PAC-1 is ascribed to procaspase-3 activation and subsequently apoptosis induction consistent with the activity in vitro.
Cell Data
cell lines:
Concentrations:Dissolved in DMSO, final concentrations ~100 μM
Incubation Time:72 hours
Powder Purity:≥99%
| Isomere SMILES | C=CCC1=C(C(=CC=C1)/C=N/NC(=O)CN2CCN(CC2)CC3=CC=CC=C3)O |
|---|---|
| WGK Deutschland | 3 |
| Molekulargewicht | 392.49 |
| Reaxy-Rn | 18691810 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=18691810&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →| Activity Type | Activity Value -log(M) | Mechanism of Action | Activity Reference | Publications (PubMed IDs) |
|---|
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Datum | Artikel |
|---|---|---|---|
| Certificate of Analysis | Jun 03, 2026 | P408074 |
| Löslichkeit | Solubility (25°C) In vitro DMSO: 27 mg/mL (198.31 mM); Water: 27 mg/mL (198.31 mM); Ethanol: 27 mg/mL |
|---|
| 1. Zitong Zhao, Ge Ge, Menghan Gong, Yi Liu, Liying Ma, Dongdong Zhang, Li Sun, Yongmei Song. (2026) Redox-triggered USP18 confers cisplatin resistance in ovarian cancer by selectively activating a non-canonical FSP1-dependent ferroptosis escape pathway. Redox Biology, [PMID:42030646] [10.1016/j.redox.2026.104179] |
Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
View Moligand™ grade guide →