L-ascorbic acid 2-phosphate magnesium hydrate is a long-acting vitamin C analogue that can stimulate the expression and formation of collagen. L-ascorbic acid 2-phosphate magnesium hydrate can be used as a culture medium to supplement the osteogenic differentiation of human adipose stem cells (hASCs). L-ascorbic acid 2-phosphate magnesium hydrate increases alkaline phosphatase (ALP) activity and runx2A expression in hASCs during osteoblast differentiation.

Physicochemical Properties

Molecular Formula	C6H9MGO10P
Molecular Weight	296.408424139023
Exact Mass	595.915
CAS #	1713265-25-8
Related CAS #	L-Ascorbic acid 2-phosphate;23313-12-4
PubChem CID	71308590
Appearance	White to off-white solid powder
Hydrogen Bond Donor Count	5
Hydrogen Bond Acceptor Count	19
Rotatable Bond Count	6
Heavy Atom Count	36
Complexity	357
Defined Atom Stereocenter Count	4
SMILES	P(=O)([O-])([O-])OC1C(=O)O[C@@H](C=1O)[C@H](CO)O.[Mg+2].O
InChi Key	HKRNHMZODRSAPN-IXNKEUJHSA-H
InChi Code	InChI=1S/2C6H9O9P.3Mg.H2O/c2*7-1-2(8)4-3(9)5(6(10)14-4)15-16(11,12)13;;;;/h2*2,4,7-9H,1H2,(H2,11,12,13);;;;1H2/q;;3*+2;/p-6/t2*2-,4+;;;;/m00..../s1
Chemical Name	trimagnesium;[(2R)-2-[(1S)-1,2-dihydroxyethyl]-3-oxido-5-oxo-2H-furan-4-yl] phosphate;hydrate
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	Cell growth was strongly accelerated by L-ascorbic acid 2-phosphate (0.1-1.5 mM; 2 to 3 weeks, media changes every 2 to 3 days) magnesium hydrate, while addition of L-ascorbic acid (Asc) only produced mild growth stimulant. Cell growth is greatly enhanced by the combination of Asc-2P and bFGF; however, additional effects are not produced by the addition of EGF or insulin [1]. L-ascorbic acid 2-phosphate (50 µM-250 µM) magnesium hydrate is necessary for the efficient osteogenic differentiation of human adipose stem cells (hASC), and AsA2-P concentrations more than 50 µM cause an increase in runx2 expression and ALP activity. The combinations of 150 µM asA2-P and 10 nM dexamethasone (Dex) and 250 µM asA2-P and 5 nM Dex produced the maximum proliferation, ALP activity, and runx2 expression [3].
Cell Assay	Cell proliferation assay [1] Cell Types: Human corneal endothelial cells (HCEC) Tested Concentrations: 0.1 mM; 0.3 mM; 1.5 mM Incubation Duration: 2 to 3 weeks, medium change every 2 to 3 days Experimental Results: Stimulated HCEC cell growth.
References	[1]. Increased proliferation and replicative lifespan of isolated human corneal endothelial cells with L-ascorbic acid 2-phosphate.Invest Ophthalmol Vis Sci. 2011 Nov 7;52(12):8711-7. [2]. Epidermal growth factor inhibits transcription of type I collagen genes and production of type I collagen in cultured human skin fibroblasts in the presence and absence of L-ascorbic acid 2-phosphate, a long-acting vitamin C derivative.J Biol Chem. 1991 May 25;266(15):9997-10003. [3]. Effects of different serum conditions on osteogenic differentiation of human adipose stem cells in vitro.Stem Cell Res Ther. 2013 Feb 15;4(1):17.

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	3.3737 mL	16.8685 mL	33.7371 mL
	5 mM	0.6747 mL	3.3737 mL	6.7474 mL
	10 mM	0.3374 mL	1.6869 mL	3.3737 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.