Green DND-26 is fluorescent dye used to mark acidic lysosomes to determine the cellular distribution. It can stain acidic compartments in live cells and has been shown to selectively accumulate in lamellar bodies in alveolar type II (AT2) cells in the lung.

Physicochemical Properties

Molecular Formula	C18H25BN4OF2
Molecular Weight	362.23
Exact Mass	362.208
CAS #	220524-71-0
PubChem CID	15410444
Appearance	Orange to red solid powder
Melting Point	120 °C
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	6
Heavy Atom Count	26
Complexity	674
Defined Atom Stereocenter Count	0
InChi Key	SXZBATLAPYSXND-UHFFFAOYSA-N
InChi Code	InChI=1S/C18H25BF2N4O/c1-13-11-14(2)24-17(13)12-16-6-5-15(25(16)19(24,20)21)7-8-18(26)22-9-10-23(3)4/h5-6,11-12H,7-10H2,1-4H3,(H,22,26)
Chemical Name	3-(2,2-difluoro-10,12-dimethyl-1-aza-3-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-3,5,7,9,11-pentaen-4-yl)-N-[2-(dimethylamino)ethyl]propanamide
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: This product requires protection from light (avoid light exposure) during transportation and storage.
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	1. Working solution configuration: 1.1 Centrifuge the solution right away to concentrate at the tube's bottom and return it to a constant temperature. 1.2 To get the working concentration of the 1 mM storage solution, dilute it with culture medium or an appropriate buffer (like PBS). Note on recommended working solution concentration: Please make sure that the Green DND-26 working solution is ready for usage by adjusting its concentration to match the current circumstances. 2. 2.1 Suspension cells for cell staining: Centrifuge cells, add PBS, and wash twice for five minutes each time. Adherent cells: remove cells and add digested islets of cell material. Add PBS and centrifuge, then discard the supernatant. Wash twice, for five minutes each time. 2.2 After adding 1 milliliter of the Green DND-26 working solution, incubate for half an hour. 2.3 Discard the supernatant after centrifuging at 400 g for three to four minutes at 4°C. 2.4 Wash the cells twice with PBS, giving them five minutes each time. 2.5 Re-suspend the cells in 1 milliliter of PBS or serum-free water, and examine them using a flow cytometer or fluorescence microscope. Storage temperature: -20°C, shielded from light
References	[1]. Acid-Activatable Transmorphic Peptide-Based Nanomaterials for Photodynamic Therapy. Angew Chem Int Ed Engl. 2020;59(46):20582-20588. [2]. LysoTracker is a marker of differentiated alveolar type II cells. Respir Res. 2013;14(1):123. Published 2013 Nov 11.
Additional Infomation	DND-26 dye is a BODIPY dye. It has a role as a fluorochrome.

Solubility Data

Solubility (In Vitro)

May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples

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	2.7607 mL	13.8034 mL	27.6068 mL
	5 mM	0.5521 mL	2.7607 mL	5.5214 mL
	10 mM	0.2761 mL	1.3803 mL	2.7607 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.