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Dimethyl isophthalate

Dimethyl isophthalate structure

CAS No.: 1459-93-4

Chemical Name:: Dimethyl isophthalate

Synonyms: METHYL ISOPHTHALATE;Dimethyl isophthalat;ISOPHTHALIC ACID DIMETHYL ESTER;ai3-02247;Uniplex 270;Morflex 1129;RARECHEM AL BF 0071;dimethylm-phthalate;Dimethyl m-phthalate;DIMETHYL ISOPHTHALATE

CBNumber:: CB7265116

Molecular Formula:: C10H10O4

Molecular Weight:: 194.18

MDL Number:: MFCD00008433

MOL File:: 1459-93-4.mol

MSDS File:: SDS

Last updated:2026-06-24 18:39:39

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Dimethyl isophthalate Properties

Melting point	64-68 °C (lit.)
Boiling point	124 °C (12.0016 mmHg)
Density	1.1477
vapor density	6.8 (vs air)
vapor pressure	93.7 mm Hg ( 208 °C)
refractive index	1.5168 (estimate)
Flash point	138 °C
storage temp.	Sealed in dry,Room Temperature
solubility	0.29g/l insoluble
form	Flakes or Crystalline Powder
pka	-5.32[at 20 ℃]
color	White to off-white
Viscosity	4.9cp (70C)
Water Solubility	Insoluble
BRN	1912251
Henry's Law Constant	1.6×10² mol/(m³Pa) at 25℃, HSDB (2015)
InChI	1S/C10H10O4/c1-13-9(11)7-4-3-5-8(6-7)10(12)14-2/h3-6H,1-2H3
InChIKey	VNGOYPQMJFJDLV-UHFFFAOYSA-N
SMILES	COC(=O)c1cccc(c1)C(=O)OC
LogP	2.1 at 20℃
CAS DataBase Reference	1459-93-4(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances	DIMETHYL ISOPHTHALATE
FDA 21 CFR	177.1590; 177.1630
FDA UNII	2UY9Y3574K
NIST Chemistry Reference	1,3-Benzenedicarboxylic acid dimethyl ester(1459-93-4)
EPA Substance Registry System	Dimethyl isophthalate (1459-93-4)
UNSPSC Code	85151701
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H319

Precautionary statements

P264-P280-P305+P351+P338-P337+P313

Hazard Codes

Risk Statements

Safety Statements

26-36

WGK Germany

RTECS

NT2540000

TSCA

TSCA listed

HS Code

29173980

Storage Class

11 - Combustible Solids

Hazard Classifications

Eye Irrit. 2

Hazardous Substances Data

1459-93-4(Hazardous Substances Data)

REACH Registrations

Active

NFPA 704

	1
0		0

Dimethyl isophthalate price More Price(49)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	194239	Dimethyl isophthalate ReagentPlus , 99%	1459-93-4	3kg	$297	2026-04-30	Buy
TCI Chemical	I0157	Dimethyl Isophthalate >99.0%(GC)	1459-93-4	25g	$21	2026-04-30	Buy
TCI Chemical	I0157	Dimethyl Isophthalate >99.0%(GC)	1459-93-4	500g	$41	2026-04-30	Buy
TRC	TRC-D474045-25G	Dimethyl Isophthalate	1459-93-4	25g	$186	2026-06-03	Buy
TRC	TRC-D474045-10G	Dimethyl Isophthalate	1459-93-4	10g	$162	2026-06-03	Buy

Product number	Packaging	Price	Buy
194239	3kg	$297	Buy
I0157	25g	$21	Buy
I0157	500g	$41	Buy
TRC-D474045-25G	25g	$186	Buy
TRC-D474045-10G	10g	$162	Buy

Dimethyl isophthalate Chemical Properties, Uses, Production

Chemical Properties

white to off-white flakes or crystalline powder. Soluble in methanol, ethanol, insoluble in water, used in organic synthesis, as a fixed plate for gas chromatography.

Uses

Dimethyl isophthalate is used as a plasticizer, to make polyester resins, as a polyacrylate resin comonomer, and as a perfume fixative. It may be used as an internal standard for determining, dimethyl-tere-phthalate (DMtP), dimethyl-phthalate (DMP), diethyl phthalate (DEP) in soil samples and biosolids using gas-chromatography coupled to mass spectrometry (GC-MS). It may also be used as an analytical reference standard for the quantification of the analyte in complex matrices including plastics, cosmetics, and environmental samples using gas chromatography coupled to positive chemical ionization mass spectrometry (GC-CIMS).

Application

Dimethyl isophthalate was used in the synthesis of:
polybutylene isophthalate end-capped with N-ethyl-pentadecafluorooctanamide.
poly(ethylene terephthalate-co-isophthalate-co-5-tert-butylisophthalate) terpolyesters.
Polyesters containing sulfonate groups were prepared from dimethyl isophthalate, BD and 5SIPNa by the usual two-stage crystallization.

Preparation

Dimethyl isophthalate is synthesized by esterifying isophthalic acid with methanol: Isophthalic acid (1.66gm, 0.1mmol) in super dry methanol (60mL) containing 2-3 drops of concentrated H2SO4 (AR) was refluxed till it dissolved. Then, the reaction mixture was poured onto ice cold water, immediately a solid started separating from the clear solution. To this a solution of sodium bicarbonate was added till the effervescence seized. The ester thus obtained was filtered and washed with water for several times (M.P: 64-67°C).

Synthesis Reference(s)

Tetrahedron Letters, 33, p. 1959, 1992 DOI: 10.1016/0040-4039(92)88113-J

General Description

Dimethyl isophthalate is dimethyl phthalate ester based plasticizer.

Flammability and Explosibility

Non flammable

Dimethyl isophthalate synthesis

Synthesis of Dimethyl isophthalate from Methanol and Isophthalic acid

Dimethyl isophthalate Preparation Products And Raw materials

Raw materials

Isophthalic acid 3-Carboxybenzaldehyde methyl 3-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)benzoate Dimethyl 5-iodoisophthalate Methyl 3-chlorobenzoate

Methanol

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Preparation Products

polyester-based liquid crystalling ionmer containing sulfonate group Methyl 3-formylbenzoate Isophthaloyl dichloride Diphenyl isophthalate Dimethyl 5-bromoisophthalate

1,3-Bis(chloromethyl)benzene Dimethyl 5-aminoisophthalate 2-(3-(methoxycarbonyl)phenyl)acetic acid 3,5-Bis(methoxycarbonyl)phenylboronic acid pinacol ester

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Dimethyl isophthalate Suppliers

Global Suppliers ( 429)

Supplier	Tel	Email	Country	ProdList	Advantage
Hubei chengfeng chemical co. LTD	13125175253	1005221305@qq.com	China	3093	58
Wuhan beileye Biomedical Technology Co., Ltd	15871353653 18086118076	1784708432@qq.com	China	4746	58
Henan Vocas Biotechnology Co., Ltd	18537671377	vocas@foxmail.com	China	5000	58
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TAIYUAN RHF CO.,LTD.	+86 351 7031519	sales@RHFChem.com	China	2334	56
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Beijing dtftchem Technology Co., Ltd.	010-60275820 13031183356	elainezt@sina.com	China	1386	62
Beijing HwrkChemical Technology Co., Ltd	89508211 18501085097	sales.bj@hwrkchemical.com	China	9407	55

Supplier	Advantage
Hubei chengfeng chemical co. LTD	58
Wuhan beileye Biomedical Technology Co., Ltd	58
Henan Vocas Biotechnology Co., Ltd	58
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Alfa Aesar	84
TAIYUAN RHF CO.,LTD.	56
TCI (Shanghai) Development Co., Ltd.	81
Beijing dtftchem Technology Co., Ltd.	62
Beijing HwrkChemical Technology Co., Ltd	55

View Latest Price from Dimethyl isophthalate manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-05-28	Dimethyl isophthalate 1459-93-4	$9.10	1KG	99.%	10 ton	Hebei Chuanghai Biotechnology Co,.LTD
2026-03-20	Dimethyl isophthalate 1459-93-4	$1.00	1KG	99%	10 mt	Hebei Chuanghai Biotechnology Co., Ltd
2025-12-24	Dimethyl isophthalate 1459-93-4	$4656.00	1KG	99.0%	1000 tons	Shaanxi Dideu Medichem Co. Ltd

Dimethyl isophthalate
1459-93-4
$9.10
99.%
Hebei Chuanghai Biotechnology Co,.LTD

Dimethyl isophthalate
1459-93-4
$1.00
99%
Hebei Chuanghai Biotechnology Co., Ltd

Dimethyl isophthalate
1459-93-4
$4656.00
99.0%
Shaanxi Dideu Medichem Co. Ltd

Dimethyl isophthalate Spectrum

Dimethyl isophthalate(1459-93-4)MS Dimethyl isophthalate(1459-93-4)¹HNMR Dimethyl isophthalate(1459-93-4)¹³CNMR Dimethyl isophthalate(1459-93-4)IR1 Dimethyl isophthalate(1459-93-4)IR2 Dimethyl isophthalate(1459-93-4)IR3 Dimethyl isophthalate(1459-93-4)Raman

1459-93-4 (Dimethyl isophthalate) Related Search:

Diphenyl isophthalate Mono-methyl isophthalate 5-Sodiosulpho Dimethyl Isophthalate ( DcbMS / DMS) Diethyl isophthalate TRIISONONYL TRIMELLITATE

DIALLYL ISOPHTHALATE BCECF-AM Trioctyl trimellitate Dimethyl 5-aminoisophthalate Pyromellitic Dianhydride

Dimethyl isophthalate Dimethyl aminoterephthalate Dimethyl 5-nitroisophthalate Tetramethyl pyromellitate 3,5-Bis(methoxycarbonyl)phenyl isocyanate

Trimethyl 1,3,5-benzenetricarboxylate Dimethyl 5-bromoisophthalate Trimethyl 1,2,4-benzenetricarboxylate

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