CPI-455
- CAS No.
- 1628208-23-0
- Chemical Name:
- CPI-455
- Synonyms
- CPI-455;CCPI-455;CPI-455, >98%;CPI-455 ,S6389;CPI 455;CPI455;CPI-455(free base);CPI-455, 10 mM in DMSO;CPI 455;CPI-455;CPI455;CPI 455,Histone Demethylase,CPI455,CPI-455,Inhibitor,inhibit;6-Isopropyl-7-oxo-5-phenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carbonitrile
- CBNumber:
- CB83129362
- Molecular Formula:
- C16H14N4O
- Molecular Weight:
- 278.31
- MDL Number:
- MFCD29921343
- MOL File:
- 1628208-23-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| CPI-455 ≥98% | 22127 | 1mg | $29 |
| CPI-455 ≥98% | 22127 | 5mg | $99 |
| CPI-455 ≥98% | 22127 | 10mg | $169 |
| CPI-455 ≥98% | 22127 | 25mg | $352 |
| CPI-455 | DQC20823 | 0.1g | $259.6 |
| More product size | |||
| Boiling point | 488.7±55.0 °C(Predicted) |
|---|---|
| Density | 1.28±0.1 g/cm3(Predicted) |
| storage temp. | -20°C |
| solubility | Soluble in DMSO (up to at least 25 mg/ml) |
| form | solid |
| pka | -5.10±0.60(Predicted) |
| color | Off-white |
| Stability | Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months. |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H332-H335 |
| Precautionary statements | P280-P305+P351+P338-P310 |
CPI-455 price More Price(47)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Cayman Chemical | 22127 | CPI-455 ≥98% | 1628208-23-0 | 1mg | $29 | 2026-04-30 | Buy |
| Cayman Chemical | 22127 | CPI-455 ≥98% | 1628208-23-0 | 5mg | $99 | 2026-04-30 | Buy |
| Cayman Chemical | 22127 | CPI-455 ≥98% | 1628208-23-0 | 10mg | $169 | 2026-04-30 | Buy |
| Cayman Chemical | 22127 | CPI-455 ≥98% | 1628208-23-0 | 25mg | $352 | 2026-04-30 | Buy |
| Biosynth | DQC20823 | CPI-455 | 1628208-23-0 | 0.1g | $259.6 | 2026-06-04 | Buy |
CPI-455 Chemical Properties,Uses,Production
Description
CPI-455 (1628208-23-0) is a potent (IC50= 10 nM) and selective inhibitor of the lysine demethylase KDM5 (equal inhibition of KDM5A, 5B, 5C).1CPI-455 reduced the number of drug-tolerant persister cancer cells (DTPs) in a dose-dependent, KDM5-dependent manner in multiple cell lines treated with standard chemotherapy or targeted agents. CPI-455 synergized with 5-aza-2’-deoxycytidine (DAC) to reduce the viability of luminal breast cancer cellsin vitro.2KDM5 demethylases have recently been shown to repress the immune response to tumorsviasuppression of STING.3
Uses
CPI-455 is a potent KDM5 demethylase inhibitor.
in vivo
Dual blockade of B7-H4 and KDM5B (CPI-455, 50/70 mg/kg, ip, daily) in mice elicits protective immunity[2].
| Animal Model: | Six-week-old male C57BL/6 mice (One- to 2-mm fragments of P. gingivalis–positive PDXs were implanted subcutaneously into the flank region of humanized mice.) |
| Dosage: | 50 mg/kg or 70 mg/kg (combined with anti–B7-H4). |
| Administration: | IP, daily, 14-28 days. |
| Result: | Histopathology analysis revealed no inflammation in either group at 2 weeks in response to the primary infection. However, at 8 weeks after inoculation, mice receiving monotherapy exhibited mild inflammation, whereas the combined treatment presented with heavy to severe inflammation, which persisted at 12 and 16 weeks after challenge. Treatment with CPI-455 to selectively target H3K4-specific JmjC demethylases increased CXCL11, CXCL9, and CXCL10 following infection, with maximum levels observed 48 hours after infection. |
IC 50
KDM5
References
[1] MAIA VINOGRADOVA. An inhibitor of KDM5 demethylases reduces survival of drug-tolerant cancer cells[J]. Nature chemical biology, 2016, 12 7: 531-538. DOI:10.1038/nchembio.2085
[2] BENJAMIN R LEADEM. A KDM5 Inhibitor Increases Global H3K4 Trimethylation Occupancy and Enhances the Biological Efficacy of 5-Aza-2’-Deoxycytidine.[J]. Cancer research, 2018: 1127-1139. DOI:10.1158/0008-5472.can-17-1453
[3] LIZHEN WU. KDM5 histone demethylases repress immune response via suppression of STING.[J]. PLoS Biology, 2018, 16 8: e2006134. DOI:10.1371/journal.pbio.2006134
CPI-455 Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29766 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +1-00000000000 | marketing@targetmol.com | United States | 32431 | 58 |
| BOC Sciences | 16314854226; +8616314854226 | inquiry@bocsci.com | United States | 19852 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; | support@targetmol.com | United States | 38999 | 58 |
| Zibo Hangyu Biotechnology Development Co., Ltd | +86-0533-2185556 +86-15965530500 | nickzhang@hangyubiotech.com | China | 9932 | 58 |
| Aladdin Scientific | tp@aladdinsci.com | United States | 54746 | 58 | |
| NANJING YINGWEN BIOTECHNOLOGY CO LTD | +86-13382787392 | sales@aeechem.com | China | 10000 | 58 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
| Shanghai Lollane Biological Technology Co.,Ltd. | 021-52996696,15000506266 15000506266 | China | 4854 | 55 | |
| Shanghai EFE Biological Technology Co., Ltd. | 021-65675885 18964387627 | info@efebio.com | China | 9799 | 58 |







