NSC243928 mesylate is a human lymphocyte antigen 6 (LY6) binder that also works as a cell growth inhibitor and has anti-cancer effect.

Physicochemical Properties

Molecular Formula	C23H25N3O6S2
Molecular Weight	503.59
Exact Mass	503.118
Elemental Analysis	C, 54.86; H, 5.00; N, 8.34; O, 19.06; S, 12.73
CAS #	59988-01-1
Related CAS #	59988-01-1;
PubChem CID	151601
Appearance	Light yellow to yellow solid powder
Boiling Point	571.7ºC at 760 mmHg
Flash Point	299.5ºC
LogP	6.062
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	9
Rotatable Bond Count	6
Heavy Atom Count	34
Complexity	708
Defined Atom Stereocenter Count	0
InChi Key	HPURJIOSFDKFBF-UHFFFAOYSA-N
InChi Code	InChI=1S/C22H21N3O3S.CH4O3S/c1-3-29(26,27)25-15-12-13-20(21(14-15)28-2)24-22-16-8-4-6-10-18(16)23-19-11-7-5-9-17(19)22;1-5(2,3)4/h4-14,25H,3H2,1-2H3,(H,23,24);1H3,(H,2,3,4)
Chemical Name	N-(4-(acridin-9-ylamino)-3-methoxyphenyl)ethanesulfonamide methanesulfonate
Synonyms	NSC243928; NSC 243928; NSC-243928
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

ln Vitro	Mesylate from NSC243928 (2 μM, 24 hours) can cause cell death in MDA-MB-231 control cells, while LY6K knockdown cells exhibit greater cell viability, suggesting that NSC243928 may cause cell death via LY6K [1]. MDA-MB-231, Hs-578-T, BT-549, and OVCAR-8 cells had corresponding IC50 values of 5.683 μM, 7.309 μM, 7.954 μM, and 4.167 μM [1].
References	[1]. Small Molecule Binds with Lymphocyte Antigen 6K to Induce Cancer Cell Death. Cancers (Basel). 2020 Feb 22;12(2):509.

Solubility Data

Solubility (In Vitro)

DMSO : ~10 mg/mL (~19.86 mM)

Solubility (In Vivo)

Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples. Injection Formulations (e.g. IP/IV/IM/SC) Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] *Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin → 500 μL Saline) Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO → 100 μLPEG300 → 200 μL castor oil → 650 μL Saline) Injection Formulation 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (i.e. 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline) Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH → 900 μL Corn oil) Injection Formulation 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). Oral Formulation 3: Dissolved in PEG400 Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose Oral Formulation 6: Mixing with food powders Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	1.9857 mL	9.9287 mL	19.8574 mL
	5 mM	0.3971 mL	1.9857 mL	3.9715 mL
	10 mM	0.1986 mL	0.9929 mL	1.9857 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.