Dimethyl terephthalate

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Dimethyl terephthalate
IUPAC name Dimethyl terephthalate
Other names Terephthalic acid methyl ester, DMT,

Methyl Terephthalate, Dimethyl-p-phthalate,
1,4-Benzenedicarboxylic acid dimethyl ester,
Di-Me terephthalate,
Dimethylester kyseliny tereftalove,
Methyl 4-carbomethoxybenzoate,
Methyl-p-(methoxycarbonyl)benzoate,
Dimethyl 4-phthalate,
Dimethyl ester of 1,4-Benzenedicarboxylic acid,
Dimethyl-1,4-benzenedicarboxylate

Identifiers
CAS number [120-61-6]
Properties
Molecular formula C10H10O4
Molar mass 194.19 g/mol
Appearance white solid
Density 1.2 g/cm³, ?
Melting point

140 - 142°C (? K)

Boiling point

288°C (? K)

Solubility in water  ? g/100 ml (?°C)
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Dimethyl terephthalate (DMT) is an ester of terephthalic acid and methanol and is used in the production of polyesters, including polyethylene terephthalate and polytrimethylene terephthalate. It consists of benzene with methyl ester groups attached in the para position, or to the first and fourth carbon atoms.

DMT has largely been superseded by pure terephthalic acid (PTA) as the preferred industrial route to polyester production.

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