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902098

Sigma-Aldrich

4-Methacryloxyethyl trimellitic anhydride

Synonym(s):

(4-META)

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About This Item

Empirical Formula (Hill Notation):
C15H12O7
CAS Number:
Molecular Weight:
304.25
MDL number:
UNSPSC Code:
12162002
NACRES:
NA.23

form

crystalline (solid )

color

white to off-white

storage temp.

2-8°C

InChI

1S/C15H12O7/c1-8(2)12(16)20-5-6-21-13(17)9-3-4-10-11(7-9)15(19)22-14(10)18/h3-4,7H,1,5-6H2,2H3

InChI key

RMCCONIRBZIDTH-UHFFFAOYSA-N

General description

4-Methacryloxyethyl trimellitic anhydride (4-META), a widely used dental adhesive, improves the bond strength between the metal and acrylic resin. It has an anhydride group that bonds with dental metal substrates and the methacrylate group that polymerizes and copolymerizes with monomeric composite resin.

Application

4-META can be used in the formation of resin to fix the vertical root fracture by root fragment bonding.
4-Methacryloxyethyl trimellitic anhydride (4-META) is a methacylate monomer most commonly used as an adhesion promoter in dental resins. 4-META contains both hydrophilic and hydrophobic groups, promoting the diffusion of other dental resin monomers into the tooth structure to form a hybrid, resin-impregnated layer.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Jeffrey Chai Chang et al.
The Journal of prosthetic dentistry, 87(2), 216-224 (2002-02-21)
4-META (4-methacryloyloxyethy trimellitate anhydride) was invented and patented in Japan in January 1979 and patented in the United States in April 1979. For the first 8 years, 4-META dental products (manufactured by Sun Medical Co, Kyoto, Japan) were not readily
Evaluation of biological, physical and chemical properties of mineral trioxide aggregate mixed with 4-META/MMA-TBB
Kaul R, et al.
Indian Journal of Dental Research, 24(4), 418-418 (2013)
Shear bond strength between autopolymerizing acrylic resin and Co-Cr alloy using different primers
Sanohkan S, et al.
Dental Materials Journal, 31(5) (2012)
Successful treatment of vertical root fracture through intentional replantation and root fragment bonding with 4-META/MMA-TBB resin
Okaguchi M, et al.
Journal of the Formosan Medical Association = Taiwan Yi Zhi, 118(3), 671-678 (2019)

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