CIL62 is a caspase-3/7-independent inducer of cell death. Its mechanism of action is Necrostatin-1-dependent cell death.

Physicochemical Properties

Molecular Formula	C23H26O5
Molecular Weight	382.4495
Exact Mass	382.178
CAS #	117593-36-9
PubChem CID	991372
Appearance	Light yellow to yellow solid powder
LogP	3.3
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	1
Heavy Atom Count	28
Complexity	733
Defined Atom Stereocenter Count	0
InChi Key	OKXVTYXMGOFJFT-UHFFFAOYSA-N
InChi Code	InChI=1S/C23H26O5/c1-22(2)8-15(26)20-17(10-22)28-18-11-23(3,4)9-16(27)21(18)19(20)13-6-5-12(24)7-14(13)25/h5-7,19,24-25H,8-11H2,1-4H3
Chemical Name	9-(2,4-dihydroxyphenyl)-3,3,6,6-tetramethyl-4,5,7,9-tetrahydro-2H-xanthene-1,8-dione
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
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	Necrostatin-1 inhibits CIL62 at 19 µM (5 µg/mL), whereas ferroptosis inducers (antioxidants or iron-chelators) do not suppress CIL62[1].
References	[1]. Kenichi Shimada, et al. Global Survey of Cell Death Mechanisms Reveals Metabolic Regulation of Ferroptosis. Nat Chem Biol. 2016 Jul;12(7):497-503.

Solubility Data

Solubility (In Vitro)

DMSO: 125 mg/mL (326.84 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.08 mg/mL (5.44 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.08 mg/mL (5.44 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. 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. Solubility in Formulation 3: ≥ 2.08 mg/mL (5.44 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.6147 mL	13.0736 mL	26.1472 mL
	5 mM	0.5229 mL	2.6147 mL	5.2294 mL
	10 mM	0.2615 mL	1.3074 mL	2.6147 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.