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128635

Sigma-Aldrich

2-Hydroxyethyl methacrylate

contains ≤250 ppm monomethyl ether hydroquinone as inhibitor, 97%

Synonym(s):

1,2-Ethanediol mono(2-methylpropenoate), Glycol methacrylate, HEMA

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500 G
CZK 1,680.00
1 KG
CZK 1,960.00
18 KG
CZK 18,800.00

CZK 1,680.00

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500 G
CZK 1,680.00
1 KG
CZK 1,960.00
18 KG
CZK 18,800.00

About This Item

Linear Formula:
CH2=C(CH3)COOCH2CH2OH
CAS Number:
868-77-9
Molecular Weight:
130.14
Beilstein:
1071583
EC Number:
212-782-2
MDL number:
MFCD00002863
UNSPSC Code:
12162002
PubChem Substance ID:
24847870
NACRES:
NA.23

CZK 1,680.00

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vapor density

5 (vs air)

Quality Level

200

vapor pressure

0.01 mmHg ( 25 °C)

Assay

97%

form

liquid

contains

≤250 ppm monomethyl ether hydroquinone as inhibitor

refractive index

n20/D 1.453 (lit.)

bp

67 °C/3.5 mmHg (lit.)

density

1.073 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CC(=C)C(=O)OCCO

InChI

1S/C6H10O3/c1-5(2)6(8)9-4-3-7/h7H,1,3-4H2,2H3

InChI key

WOBHKFSMXKNTIM-UHFFFAOYSA-N

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General description

2-Hydroxyethyl methacrylate (HEMA) was the first monomer to be used to synthesize hydrogels for biomedical applications.The water swelling properties of HEMA are enhanced by copolymerization with more hydrophilic monomers.[1]HEMA finds wide applications for drug delivery.

Application

HEMA is used in the synthesis of biologically functional poly (2-hydroxyethyl methacrylate) (PHEMA) coplymers.[2] It is also used to prepare light responsive membranes of PHEMA,[3] HEMA/ acrylamide based specific drug release hydrogel,[1] and water soluble HEMA/methacrylic acid hydrogel for drug delivery.[4] Effects of HEMA on the migration of dental pulp stem cells (in vitro) may be studied.[5]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H317,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

222.8 °F - closed cup

Flash Point(C)

106 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB0950
MKCW4891
SDBB0372
MKCV5891
SDBB1995

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Drake W Williams et al.
Journal of endodontics, 39(9), 1156-1160 (2013-08-21)
Cell migration is an important step in pulpal wound healing. Although components in the resin-based dental materials are known to have adverse effects on pulp wound healing including proliferation and mineralization, their effects on cell migration have been scarcely examined.
Preparation of Light-responsive Membranes by a Combined Surface Grafting and Postmodification Process.
Scholler K, et al.
Journal of Visualized Experiments, 85, e51680-e51680 (2014)
Influence of the ionic character of a drug on its release rate from hydrogels based on 2-hydroxyethylmethacrylate and acrylamide synthesized by photopolymerization
Gomez ML, et al.
Express Polymer Letters, 6(30, 189-197 (2012)
Thomas J Dursch et al.
Biomaterials, 35(2), 620-629 (2013-10-24)
Two-photon confocal microscopy and back extraction with UV/Vis-absorption spectrophotometry quantify equilibrium partition coefficients, k, for six prototypical drugs in five soft-contact-lens-material hydrogels over a range of water contents from 40 to 92%. Partition coefficients were obtained for acetazolamide, caffeine, hydrocortisone
Loretta A Idowu et al.
Polymers, 11(3) (2019-04-10)
2-Hydroxyethyl methacrylate (HEMA) is an important component of many acrylic resins used in coatings formulations, as the functionality ensures that the chains participate in the cross-linking reactions required to form the final product. Hence, the knowledge of their radical copolymerization
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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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