Poly(2-hydroxyethyl methacrylate) (MW 1000000) is one of the most important hydrogels in the field of biomaterials. Poly(2-hydroxyethyl methacrylate) is the basic component of contact lenses and is also used in soft tissue implants, synthetic grafts of wrist bones and bones, regeneration of nervous system tissues, and delivery of active molecules.

Physicochemical Properties

Molecular Formula	C6H10O3
Molecular Weight	1000000(Average)
Exact Mass	130.063
CAS #	25249-16-5
PubChem CID	18942519
Appearance	White to off-white solid powder
Density	1.054g/cm3
Boiling Point	189ºC at 760mmHg
Flash Point	97.2ºC
Vapour Pressure	0.159mmHg at 25°C
Index of Refraction	1.442
LogP	0.098
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	5
Heavy Atom Count	11
Complexity	129
Defined Atom Stereocenter Count	0
SMILES	OCCOC(C(=C)C)=O
InChi Key	CRUFITZJZGASJI-UHFFFAOYSA-N
InChi Code	InChI=1S/C8H16O3/c1-4-8(2,3)7(10)11-6-5-9/h9H,4-6H2,1-3H3
Chemical Name	2-hydroxyethyl 2,2-dimethylbutanoate
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	Poly(2-hydroxyethyl methacrylate) (PolyHEMA) deters host cell absorption and breakdown while maintaining a moisture content akin to that of living tissue. It is simple to mold into many shapes and simple to sterilize[1]. When cells were grown on poly(2-hydroxyethyl methacrylate), their rates of proliferation were decreased; in hRPE cultures, poly (2-hydroxyethyl methacrylate) did not cause cell death. Numerous enormous spheroid colonies were produced by human retinal pigment epithelial (RPE) cells grown on poly (2-hydroxyethyl methacrylate). After megacolonies were recultured, poly(2-hydroxyethyl methacrylate) cell cultures were shown to include markers for retinal progenitor cells and hRPE cells [1].
References	[1]. Fatemeh Nazemroaya, et al. Induced Retro-Differentiation of Human Retinal Pigment Epithelial Cells on PolyHEMA. J Cell Biochem. 2017 Oct;118(10):3080-3089.
Additional Infomation	A biocompatible, hydrophilic, inert gel that is permeable to tissue fluids. It is used as an embedding medium for microscopy, as a coating for implants and prostheses, for contact lenses, as microspheres in adsorption research, etc. See also: Poly(2-hydroxyethyl methacrylate) (annotation moved to).

Solubility Data

Solubility (In Vitro)

DMSO: 25 mg/mL Ethanol: < 1 mg/mL

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.)