Stenoparib | CAS#1140964-99-3 | PARP inhibitor

Stenoparib
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WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 205882

CAS#: 1140964-99-3

Description: Stenoparib, also known as E7449 and 2X-121, is an orally available small molecule inhibitor of the nuclear enzymes poly (ADP-ribose) polymerase (PARP) 1 and 2, with potential antineoplastic activity. Upon administration, E7449 selectively binds to PARP 1 and 2, thereby preventing the repair of damaged DNA via the base excision repair (BER) pathway. This agent enhances the accumulation of single and double strand DNA breaks and promotes genomic instability eventually leading to apoptosis. PARP 1/2 inhibitor E7449 may enhance the cytotoxicity of DNA-damaging agents and of radiotherapy. PARP catalyzes post-translational ADP-ribosylation of nuclear proteins that signal and recruit other proteins to repair damaged DNA.

Chemical Structure

Stenoparib

CAS# 1140964-99-3

Product data Instruction

Theoretical Analysis

MedKoo Cat#: 205882
Name: Stenoparib
CAS#: 1140964-99-3
Chemical Formula: C18H15N5O
Exact Mass: 317.13
Molecular Weight: 317.340
Elemental Analysis: C, 68.13; H, 4.76; N, 22.07; O, 5.04

Price and Availability

Size	Price	Availability
25mg	USD 250	2 Weeks
50mg	USD 450	2 Weeks
100mg	USD 750	2 Weeks
200mg	USD 1250	2 Weeks
500mg	USD 2650	2 Weeks
1g	USD 3850	2 Weeks
2g	USD 6450	2 Weeks
Bulk inquiry Welcome, Customer: Please do not inquire quote if your intended use is for a patient since our products are for research use and for chemical synthesis use, not for human use . For in-stock products, we listed price in the web page. You may inquire prices for which sizes were not listed. If no price is listed, this means the product is not in stock at the moment, which may be available via custom synthesis. For cost-effective reason, minimum order of 1g is requested (typically very expensive). The lead time is usually 2-4 months. Quote of less than 1g will not be provided. MedKoo may not offer quote for below reasons: (1) current available synthetic method appears to be extremely expensive which is obviously not affordable to most customers; (2) Key raw material to make the product is temporally not available; (3) DEA controlled substances; (4) the product is under patent protection in customer’s country.

Synonym: E7449; E 7449; E-7449; 2X-121; 2X 121; 2X121; Stenoparib

IUPAC/Chemical Name: 8-(isoindolin-2-ylmethyl)-2H-pyridazino[3,4,5-de]quinazolin-3(9H)-one

InChi Key: JLFSBHQQXIAQEC-UHFFFAOYSA-N

InChi Code: InChI=1S/C18H15N5O/c24-18-13-6-3-7-14-16(13)17(21-22-18)20-15(19-14)10-23-8-11-4-1-2-5-12(11)9-23/h1-7H,8-10H2,(H,22,24)(H,19,20,21)

SMILES Code: O=C1NN=C(N2)C3=C(C=CC=C31)N=C2CN(C4)CC5=C4C=CC=C5

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

More Info:

Product Data:

Product Data

Certificate of Analysis:

View CoA: current batch, Lot#C9M07C22

Safety Data Sheet (SDS):

View Safety Data Sheet (SDS)

Instruction:

View handling instruction

Biological target:	E7449 is a PARP1 and PARP2 inhibitor and also inhibits TNKS1 and TNKS2, with IC50s of 2.0, 1.0, ∼50 and ∼50 nM for PARP1, PARP2, TNKS1 and TNKS2, respectively.
In vitro activity:	In wild type DT40 cells E7449 inhibited cell proliferation in a 2 day assay with an IC50 value of 3.2 μmol/L; this value was used for normalization of E7449 IC50 values obtained in mutant cells (Figure 1D, see Supplementary Figure 3 for representative IC50 curves). Reference: Oncotarget. 2015 Dec 1; 6(38): 41307–41323. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4747407/
In vivo activity:	In an in vivo subcutaneous MDA-MB-436 xenograft model, administration of E7449 at 30 or 100 mg/kg once daily for 28 days resulted in statistically significant antitumor activity (Figure 3B). A dose response was observed, with greater tumor growth inhibition at the higher 100 mg/kg dose. Reference: Oncotarget. 2015 Dec 1; 6(38): 41307–41323. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4747407/

Solubility Data

	Solvent	Max Conc. mg/mL	Max Conc. mM
Solubility
	DMSO	0.2	0.63

Preparing Stock Solutions

The following data is based on the product molecular weight 317.34 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass	1 mg	5 mg	10 mg
1 mM	1.15 mL	5.76 mL	11.51 mL
5 mM	0.23 mL	1.15 mL	2.3 mL
10 mM	0.12 mL	0.58 mL	1.15 mL
50 mM	0.02 mL	0.12 mL	0.23 mL

Formulation protocol:	1. McGonigle S, Chen Z, Wu J, Chang P, Kolber-Simonds D, Ackermann K, Twine NC, Shie JL, Miu JT, Huang KC, Moniz GA, Nomoto K. E7449: A dual inhibitor of PARP1/2 and tankyrase1/2 inhibits growth of DNA repair deficient tumors and antagonizes Wnt signaling. Oncotarget. 2015 Dec 1;6(38):41307-23. doi: 10.18632/oncotarget.5846. PMID: 26513298; PMCID: PMC4747407.
In vitro protocol:	1. McGonigle S, Chen Z, Wu J, Chang P, Kolber-Simonds D, Ackermann K, Twine NC, Shie JL, Miu JT, Huang KC, Moniz GA, Nomoto K. E7449: A dual inhibitor of PARP1/2 and tankyrase1/2 inhibits growth of DNA repair deficient tumors and antagonizes Wnt signaling. Oncotarget. 2015 Dec 1;6(38):41307-23. doi: 10.18632/oncotarget.5846. PMID: 26513298; PMCID: PMC4747407.
In vivo protocol:	1. McGonigle S, Chen Z, Wu J, Chang P, Kolber-Simonds D, Ackermann K, Twine NC, Shie JL, Miu JT, Huang KC, Moniz GA, Nomoto K. E7449: A dual inhibitor of PARP1/2 and tankyrase1/2 inhibits growth of DNA repair deficient tumors and antagonizes Wnt signaling. Oncotarget. 2015 Dec 1;6(38):41307-23. doi: 10.18632/oncotarget.5846. PMID: 26513298; PMCID: PMC4747407.

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1: Laurance J. Neurologists appeal to health secretary over withdrawal of drug for MS patients. BMJ. 2012 Nov 2;345:e7449. doi: 10.1136/bmj.e7449. PubMed PMID: 23125160.

2: Gilmore S, Hofmann-Wellenhof R, Muir J, Soyer HP. Lacunarity analysis: a promising method for the automated assessment of melanocytic naevi and melanoma. PLoS One. 2009 Oct 13;4(10):e7449. doi: 10.1371/journal.pone.0007449. PubMed PMID: 19823688; PubMed Central PMCID: PMC2758593.

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