ML241 free base
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MedKoo CAT#: 406621

CAS#: 1346528-06-0 (free base)

Description: ML241 is a potent and selective inhibitors of p97 ATPase. ML241 inhibit p97 ATPase with IC(50) values of 100 nM. ML241 inhibits degradation of a p97-dependent but not a p97-independent proteasome substrate in a dual-reporter cell line. ML241 may be a novel agent for the chemotherapy of cancer, and provide a rationale for developing pathway-specific p97 inhibitors.

Chemical Structure

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ML241 free base
CAS# 1346528-06-0 (free base)
Product data Instruction

Theoretical Analysis

MedKoo Cat#: 406621
Name: ML241 free base
CAS#: 1346528-06-0 (free base)
Chemical Formula: C23H24N4O
Exact Mass: 372.20
Molecular Weight: 372.463
Elemental Analysis: C, 74.17; H, 6.49; N, 15.04; O, 4.30

Price and Availability

Size Price Availability Quantity
10mg USD 90 Same day
25mg USD 150 Same day
50mg USD 250 Same day
100mg USD 450 Same day
200mg USD 850 Same day
500mg USD 1850 Same day
1g USD 2750 Same day
2g USD 4250
5g USD 6950
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Related CAS #: 2070015-13-1 (HCl)   1346528-06-0 (free base)    

Synonym: ML241; ML-241; ML 241.

IUPAC/Chemical Name: 2-(2H-benzo[b][1,4]oxazin-4(3H)-yl)-N-benzyl-5,6,7,8-tetrahydroquinazolin-4-amine

InChi Key: RMZPVQQGYVSLAP-UHFFFAOYSA-N

InChi Code: InChI=1S/C23H24N4O/c1-2-8-17(9-3-1)16-24-22-18-10-4-5-11-19(18)25-23(26-22)27-14-15-28-21-13-7-6-12-20(21)27/h1-3,6-9,12-13H,4-5,10-11,14-16H2,(H,24,25,26)

SMILES Code: C1(N2CCOC3=CC=CC=C23)=NC(NCC4=CC=CC=C4)=C5CCCCC5=N1

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:         

Biological target: N/A
In vitro activity: Consistent with the role of p97 in the ubiquitin–proteasome system (UPS), ML240 and ML241, like the parent compound DBeQ, caused accumulation of ubiquitin conjugates in the nuclear plus membrane and cytosolic compartments at concentrations of 5–10 μm (Figure 4a). Interestingly, ML241 caused stronger accumulation than ML240, even though ML240 was more potent at stabilizing UbG76V–GFP. This, along with the cell proliferation data, points to unexpected complexity in the mechanism of action of these compounds. Reference: ChemMedChem. 2013 Feb; 8(2): 297–312. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3662613/
In vivo activity: N/A

Preparing Stock Solutions

The following data is based on the product molecular weight 372.46 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.

Recalculate based on batch purity %
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. Chou TF, Li K, Frankowski KJ, Schoenen FJ, Deshaies RJ. Structure-activity relationship study reveals ML240 and ML241 as potent and selective inhibitors of p97 ATPase. ChemMedChem. 2013 Feb;8(2):297-312. doi: 10.1002/cmdc.201200520. Epub 2013 Jan 11. PMID: 23316025; PMCID: PMC3662613. 2. Fang CJ, Gui L, Zhang X, Moen DR, Li K, Frankowski KJ, Lin HJ, Schoenen FJ, Chou TF. Evaluating p97 inhibitor analogues for their domain selectivity and potency against the p97-p47 complex. ChemMedChem. 2015 Jan;10(1):52-6. doi: 10.1002/cmdc.201402420. Epub 2014 Nov 6. PMID: 25377500; PMCID: PMC4280364.
In vitro protocol: 1. Chou TF, Li K, Frankowski KJ, Schoenen FJ, Deshaies RJ. Structure-activity relationship study reveals ML240 and ML241 as potent and selective inhibitors of p97 ATPase. ChemMedChem. 2013 Feb;8(2):297-312. doi: 10.1002/cmdc.201200520. Epub 2013 Jan 11. PMID: 23316025; PMCID: PMC3662613. 2. Fang CJ, Gui L, Zhang X, Moen DR, Li K, Frankowski KJ, Lin HJ, Schoenen FJ, Chou TF. Evaluating p97 inhibitor analogues for their domain selectivity and potency against the p97-p47 complex. ChemMedChem. 2015 Jan;10(1):52-6. doi: 10.1002/cmdc.201402420. Epub 2014 Nov 6. PMID: 25377500; PMCID: PMC4280364.
In vivo protocol: N/A

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1: Fang CJ, Gui L, Zhang X, Moen DR, Li K, Frankowski KJ, Lin HJ, Schoenen FJ, Chou TF. Evaluating p97 Inhibitor Analogues for Their Domain Selectivity and Potency against the p97-p47 Complex. ChemMedChem. 2015 Jan;10(1):52-6. doi: 10.1002/cmdc.201402420. Epub 2014 Nov 6. PubMed PMID: 25377500; PubMed Central PMCID: PMC4280364.

2: Chou TF, Bulfer SL, Weihl CC, Li K, Lis LG, Walters MA, Schoenen FJ, Lin HJ, Deshaies RJ, Arkin MR. Specific inhibition of p97/VCP ATPase and kinetic analysis demonstrate interaction between D1 and D2 ATPase domains. J Mol Biol. 2014 Jul 29;426(15):2886-99. doi: 10.1016/j.jmb.2014.05.022. Epub 2014 May 27. PubMed PMID: 24878061; PubMed Central PMCID: PMC4102644.

3: Chou TF, Li K, Nordin BE, Porubsky P, Frankowski K, Patricelli MP, Aubé J, Schoenen FJ, Deshaies R. Selective, reversible inhibitors of the AAA ATPase p97. 2011 Apr 14 [updated 2013 May 01]. Probe Reports from the NIH Molecular Libraries Program [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 2010-. Available from http://www.ncbi.nlm.nih.gov/books/NBK133422/ PubMed PMID: 23658965.

4: Chou TF, Li K, Frankowski KJ, Schoenen FJ, Deshaies RJ. Structure-activity relationship study reveals ML240 and ML241 as potent and selective inhibitors of p97 ATPase. ChemMedChem. 2013 Feb;8(2):297-312. doi: 10.1002/cmdc.201200520. Epub 2013 Jan 11. PubMed PMID: 23316025; PubMed Central PMCID: PMC3662613.