二甘醇二甲基丙烯酸酯

Description

Diethylene glycol dimethacrylate · CAS 2358-84-1 · C12H18O5. UNII R42PUI926F. Boiling Point: 120-125 °C at 0.27 kPa; Density: 1.056 @ 20 °C; Vapor Pressure: 0.01 [mmHg].

Identification

CAS Registry Number	2358-84-1
PubChem CID	16891
Molecular formula	C12H18O5
IUPAC name	2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethyl 2-methylprop-2-enoate
UNII (FDA)	R42PUI926F

Computed Descriptors

Molecular Weight	242.27
XLogP3	1.8
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	10
Exact Mass	242.11542367
Monoisotopic Mass	242.11542367
Topological Polar Surface Area	61.8
Heavy Atom Count	17
Formal Charge	0

Physical & Chemical Properties

Boiling Point	120-125 °C at 0.27 kPa
Density	1.056 @ 20 °C
Vapor Pressure	0.01 [mmHg]
LogP	LogP = 0.81

Physical description & handling notes

• Liquid
• Colorless liquid, with an ester-like odor; [HSDB]
• Colorless liquid
• Ester-like odor
• METHYL METHACRYLATE, AND IN GENERAL THE METHACRYLIC ESTERS, POLYMERIZE MUCH LESS READILY THAN THE CORRESPONDING ORDINARY ACRYLATES. NONE THE LESS, THEY ARE STABILIZED BY ADDING HYDROQUINONE OR PYROGALLOL, PARTICULARLY IN THE PRESENCE OF METALLIC COPPER. /METHACRYLATES/
• Index of refraction: 1.4571 at 25 °C/D

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
GHS notification summary	7% (19 / 273)

GHS Hazard Classification

GHS notification summary	7% (19 / 273)
Reported hazard statements	H315 (15%), H317 (69.6%), H319 (23.4%), H335 (15%), H412 (23.1%)

Documented Uses

• Used in dental plastic composites; [HSDB] Used in acrylic resins to make artificial nails; [Adams, p. 443]
• Plastic Composites Manufacturing [Category: Industry]
• Crosslinked acrylic/vinyl resin comonomer
• Used as a comonomer ingredient in the synthesis of dental restoratives.
• The methacrylates can be synthesized by catalytic oxidation of isobutylene and subsequent esterification with the appropriate alcohol, or by reacting acetone with hydrocyanic acid and subsequent esterification in sulfuric acid with the appropriate alcohol. /Methacrylic esters/
• Diethylene glycol + methyl methacrylate (transesterification)

Synonyms

Diethylene glycol dimethacrylate; 2358-84-1; Di(ethylene glycol) dimethacrylate; Diethyleneglycol dimethacrylate; DGM 2; Oxydiethylene methacrylate; TGM 2; DTXSID8044882; Light Ester 2EG; Blemmer PDE 100; CCRIS 7050; HSDB 5458; 2,2'-Oxybisethanol Dimethacrylate; DIETHYLENE GLYCOL BIS(METHACRYLATE); 2-Propenoic acid, 2-methyl-, 1,1'-(oxydi-2,1-ethanediyl) ester; EINECS 219-099-9

Frequently Asked Questions

What are the CAS number and molecular formula of Diethylene glycol dimethacrylate?

CAS 2358-84-1; molecular formula C12H18O5; molecular weight — g/mol.

What other names is Diethylene glycol dimethacrylate known by?

Diethylene glycol dimethacrylate, 2358-84-1, Di(ethylene glycol) dimethacrylate, Diethyleneglycol dimethacrylate, DGM 2, Oxydiethylene methacrylate.

What is the regulatory status of Diethylene glycol dimethacrylate?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is Diethylene glycol dimethacrylate classified as hazardous?

7% of GHS notifications report no hazard classification (19 of 273).

What are the key physical properties of Diethylene glycol dimethacrylate?

Boiling Point: 120-125 °C at 0.27 kPa; Density: 1.056 @ 20 °C; Vapor Pressure: 0.01 [mmHg]; LogP: LogP = 0.81.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.