甲基丙烯酸十二烷基酯

Description

dodecyl methacrylate · CAS 142-90-5 · C16H30O2. UNII B6L83074BZ. Boiling Point: 142 °C @ 4 mm Hg; Melting Point: -8 °F (USCG, 1999); Melting Point: -20 °C.

Identification

CAS Registry Number	142-90-5
PubChem CID	8906
Molecular formula	C16H30O2
IUPAC name	dodecyl 2-methylprop-2-enoate
UNII (FDA)	B6L83074BZ

Computed Descriptors

Molecular Weight	254.41
XLogP3	7.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	13
Exact Mass	254.224580195
Monoisotopic Mass	254.224580195
Topological Polar Surface Area	26.3
Heavy Atom Count	18
Formal Charge	0

Physical & Chemical Properties

Boiling Point	142 °C @ 4 mm Hg
Melting Point	-8 °F (USCG, 1999)
Melting Point	-20 °C
Flash Point	126 °C (closed cup)
Density	0.868 @ 20 °C
Density	0.868 @ 20°C
Vapor Pressure	0.00118 [mmHg]
Vapor Pressure	0.0012 mm Hg @ 25 °C /Estimated/
Vapor Pressure	0.0012 [mm Hg] @20 °C
LogP	log Kow = 6.45

Physical description & handling notes

• Dodecyl methacrylate is a liquid. Floats on water. (USCG, 1999)
• Dodecyl/pentadecyl methacrylate is a colorless liquid. Less dense than water and insoluble in water. A mixture of esters of methacrylic acid. (USCG, 1999)
• Liquid
• Liquid; [CAMEO] Clear colorless liquid; [MSDSonline]
• Molecular weight: 262; melting point: -22 °C; /Made from a mixture of higher alcohols, predominately C-12/
• greater than 230 °F (USCG, 1999)

Regulatory Status

Regulatory & Food Contact	CIR / INCI: Cosmetic ingredients (Lauryl Methacrylate) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Viscosity controlling
GHS notification summary	5% (66 / 1322)

GHS Hazard Classification

GHS notification summary	5% (66 / 1322)
Reported hazard statements	H335, H315 (87.6%), H319 (87.6%), H400 (83.3%), H410 (84.3%), H320

Documented Uses

• CIR ingredient: Lauryl Methacrylate
• Used as monomer (plastics, molding powders, solvent coatings, adhesives, oil additives, viscosity index improvers, and pour-point depressants for distillate fuels), softener for lacquers, and industrial deodorant for methyl sulfide odors; Used in emulsions (textile, leather, and paper finishing) and insecticides (delay volatilization); [HSDB]
• Pulp and Paper Processing [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Plastic Composites Manufacturing [Category: Industry]
• Leather Tanning and Processing [Category: Industry]

Synonyms

Dodecyl methacrylate; 142-90-5; LAURYL METHACRYLATE; Dodecyl 2-methylacrylate; N-Dodecyl methacrylate; Metazene; 2-Propenoic acid, 2-methyl-, dodecyl ester; Dodecyl 2-methyl-2-propenoate; Sipomer LMA; Methacrylic acid, dodecyl ester; LAMA; Ageflex FM 246; Methacrylic acid, lauryl ester; GE 410 (methacrylate); Caswell No. 521; Laurylester kyseliny methakrylove

Frequently Asked Questions

What are the CAS number and molecular formula of dodecyl methacrylate?

CAS 142-90-5; molecular formula C16H30O2; molecular weight — g/mol.

What other names is dodecyl methacrylate known by?

Dodecyl methacrylate, 142-90-5, LAURYL METHACRYLATE, Dodecyl 2-methylacrylate, N-Dodecyl methacrylate, Metazene.

What is the regulatory status of dodecyl methacrylate?

Documented regulatory listings: CIR / INCI: Cosmetic ingredients (Lauryl Methacrylate) -> CIR (Cosmetic Ingredient Review); CIR / INCI: Viscosity controlling.

Is dodecyl methacrylate classified as hazardous?

5% of GHS notifications report no hazard classification (66 of 1322).

What are the key physical properties of dodecyl methacrylate?

Boiling Point: 142 °C @ 4 mm Hg; Melting Point: -8 °F (USCG, 1999); Melting Point: -20 °C; Flash Point: 126 °C (closed cup).

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.