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Name	1,4-Butanediol dimethacrylate	EINECS	218-218-1
CAS No.	2082-81-7	Density	1.012 g/cm³
PSA	52.60000	LogP	2.00520
Solubility	243mg/L at 20℃	Melting Point	-117 °C(lit.)
Formula	C₁₂H₁₈O₄	Boiling Point	292.3 °C at 760 mmHg
Molecular Weight	226.273	Flash Point	141.9 °C
Transport Information	UN 2924 3/PG 2	Appearance	N/A
Safety	3-16-26-29-39-36/37/39	Risk Codes	36/37/38-43
Molecular Structure		Hazard Symbols	Xi
Synonyms	2-Propenoicacid, 2-methyl-, 1,4-butanediyl ester (9CI);Methacrylic acid, tetramethyleneester (6CI,7CI,8CI);1,4-Butanediol, dimethacrylate (8CI);1,4-Butylenedimethacrylate;1,4-Butylene glycol dimethacrylate;1,4-Tetramethylenedimethacrylate;BDDMA;Butanediol dimethacrylate;DMM 4;Light Ester1.4BG;Mhoromer MFM 405;NK Ester BD;Oligotetramethylene glycoldimethacrylate;SR 214;SR 214B;SR 214E;Sartomer 214;Tetramethylenedimethacrylate;Tetramethylene glycol dimethacrylate;Tetramethylenemethacrylate;	Article Data	17

1,4-Butanediol dimethacrylate Synthetic route

: 110-63-4
Butane-1,4-diol

: 79-41-4
poly(methacrylic acid)

: 2082-81-7
butane-1,4-diyl di(methacrylate)

Conditions

Conditions	Yield
With cyclohexane; hydroquinone In water at 85 - 125℃;	98.83%
With sodium hydrogen sulfate In cyclohexane at 86℃; for 5h;	86.1%
With dicyclohexyl-carbodiimide In dichloromethane at -5℃; for 34h; Temperature;	77%
With sulfuric acid; benzene at 135℃; unter Entfernen des entstehenden Wassers;
With toluene-4-sulfonic acid; 1-Nitroso-2-naphthol

: 110-63-4
Butane-1,4-diol

: 80-62-6
methacrylic acid methyl ester

: 2082-81-7
butane-1,4-diyl di(methacrylate)

Conditions

Conditions	Yield
With sodium methylate; hydroquinone
With TEMPOL; oxygen; 4-methoxy-phenol; water; calcium oxide; lithium hydroxide at 70 - 96℃; Industry scale;
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; 4-methoxy-phenol; Amberlyst OH-form at 100 - 113℃; for 5h;

: 110-63-4
Butane-1,4-diol

: 80-62-6
methacrylic acid methyl ester

A: 997-46-6
4-methacryloyloxybutyl alcohol

B: 2082-81-7
butane-1,4-diyl di(methacrylate)

Conditions

Conditions	Yield
With 4-methoxy-phenol; zirconium acetylacetonate for 4h; Product distribution / selectivity; Heating / reflux;
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; 4-methoxy-phenol; zircornium(IV) n-propoxide; acetylacetone In propan-1-ol for 2h; Product distribution / selectivity; Heating / reflux;

: 106-91-2
2,3-Epoxypropyl methacrylate

: 122-08-7
benzyltrismethylammonium methoxide

: 2082-81-7
butane-1,4-diyl di(methacrylate)

: 814-68-6
acryloyl chloride

: 563-47-3
3-Chloro-2-methylpropene

: 2082-81-7
butane-1,4-diyl di(methacrylate)

Conditions

Conditions	Yield
	7.3 g (95%)

: 814-68-6
acryloyl chloride

: 80121-65-9
2-[3-(2-hydroxy-ethyl)-adamantan-1-yl]-ethanol

: 2082-81-7
butane-1,4-diyl di(methacrylate)

Conditions

Conditions	Yield
With triethylamine In benzene	7.0 g (95%)

: 5,7-dimethyl-1,3-bis(hydroxymethyl)adamantane

: 814-68-6
acryloyl chloride

: 2082-81-7
butane-1,4-diyl di(methacrylate)

Conditions

Conditions	Yield
With hydrogenchloride; triethylamine In benzene	13.2 g (80%)

: 1,3-dimethyl-5,7-bis(2-hydroxyethyl)adamantane

: 814-68-6
acryloyl chloride

: 2082-81-7
butane-1,4-diyl di(methacrylate)

Conditions

Conditions	Yield
With triethylamine In tetrahydrofuran; benzene	6.7 g (94%)

: 110-63-4
Butane-1,4-diol

: 80-62-6
methacrylic acid methyl ester

A: 2082-81-7
butane-1,4-diyl di(methacrylate)

B: 4-(3-methoxy-2-methylpropanoyloxy)butyl 2-methylprop-2-enoate

C: 4-(2-{[4-(2-methylprop-2-enoyloxy)butyl]oxycarbonyl}propoxy)butyl 2-methylprop-2-enoate

Conditions

Conditions	Yield
With TEMPOL; oxygen; 4-methoxy-phenol; calcium oxide; lithium hydroxide at 70 - 96℃; Product distribution / selectivity; Industry scale;

: 292638-84-7
styrene

: 2082-81-7
butane-1,4-diyl di(methacrylate)

butane-1,4-diyl di(methacrylate)-crosslinked polystyrene; monomer(s): styrene; butane-1,4-diyl di(methacrylate): butane-1,4-diyl di(methacrylate)-crosslinked polystyrene; monomer(s): styrene; butane-1,4-diyl di(methacrylate)

Conditions

Conditions	Yield
With Polyvinyl alcohol; dibenzoyl peroxide In toluene at 85℃; for 15h;	90%

1,4-Butanediol dimethacrylate Chemical Properties

Molecular structure of 1,4-Butanediol dimethacrylate (CAS NO.2082-81-7) is:

Product Name: 1,4-Butanediol dimethacrylate
CAS Registry Number: 2082-81-7
IUPAC Name: 4-(2-methylprop-2-enoyloxy)butyl 2-methylprop-2-enoate
Molecular Weight: 226.26892 [g/mol]
Molecular Formula: C₁₂H₁₈O₄
XLogP3: 3.2
H-Bond Donor: 0
H-Bond Acceptor: 4
EINECS: 200-875-0
Melting Point: -117 °C(lit.)
Refractive index n20/D 1.456(lit.)
Surface Tension: 31.5 dyne/cm
Density: 1.012 g/cm³
Flash Point: 141.9 °C
Enthalpy of Vaporization: 53.18 kJ/mol
Boiling Point: 292.3 °C at 760 mmHg
Vapour Pressure: 0.00185 mmHg at 25°C
Product Categories: Acrylic Monomers;C₁₂ to C₆₃Monomers;Carbonyl Compounds;Esters;Polyfunctional Acrylics

1,4-Butanediol dimethacrylate Safety Profile

Safty information about 1,4-Butanediol dimethacrylate (CAS NO.2082-81-7) is:
Hazard Codes: Irritant Xi
Risk Statements: 36/37/38-43
R36/37/38:Irritating to eyes, respiratory system and skin.
R43:May cause sensitization by skin contact.
Safety Statements: 3-16-26-29-39-36/37/39
S3:Keep in a cool place.
S16:Keep away from sources of ignition.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S29:Do not empty into drains.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
RIDADR: UN 2924 3/PG 2
WGK Germany: 2
RTECS: PA0350000
F: 9-34
HazardClass: 3
PackingGroup: I

1,4-Butanediol dimethacrylate Specification

1,4-Butanediol dimethacrylate , its cas register number is 2082-81-7. It also can be called 2-Propenoic acid,2-methyl-, 1,1'-(1,4-butanediyl) ester ; 1,4-Butylene dimethacrylate ; 1,4-Butylene glycol dimethacrylate ; 2-Propenoic acid, 2-methyl-, 1,4-butanediyl ester ; Butanediol dimethacrylate ; Methacrylic acid, tetramethylene ester ; Oligotetramethylene glycol dimethacrylate ; 2-Propenoic acid, 2-methyl-, 1,4-butanediyl ester .

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