Dimethyl isophthalate

Description

Dimethyl isophthalate · CAS 1459-93-4 · C10H10O4. UNII 2UY9Y3574K. Boiling Point: 282 °C; Melting Point: 67.5 °C; Flash Point: 280 °F (138 °C) (Closed cup).

Identification

CAS Registry Number	1459-93-4
PubChem CID	15088
Molecular formula	C10H10O4
IUPAC name	dimethyl benzene-1,3-dicarboxylate
UNII (FDA)	2UY9Y3574K

Computed Descriptors

Molecular Weight	194.18
XLogP3	2.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	4
Exact Mass	194.05790880
Monoisotopic Mass	194.05790880
Topological Polar Surface Area	52.6
Heavy Atom Count	14
Formal Charge	0

Physical & Chemical Properties

Boiling Point	282 °C
Melting Point	67.5 °C
Flash Point	280 °F (138 °C) (Closed cup)
Density	1.194 g/cu cm at 20 °C
Vapor Pressure	0.00963 [mmHg]

Physical description & handling notes

• Other Solid
• Solid; [HSDB] Chips; [MSDSonline]
• Needles from dilute alcohol
• ... Solid at room temperature.
• Slightly soluble in alcohol.
• In water, 290 mg/L, temperature not specified

Regulatory Status

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
GHS notification summary	2% (3 / 152)

GHS Hazard Classification

GHS notification summary	2% (3 / 152)
Reported hazard statements	H319 (98%)

Documented Uses

• Used as a plasticizer, to make polyester resins, as a polyacrylate resin comonomer, and as a perfume fixative; [HSDB]
• CHEM INTERMED FOR POLYESTER RESINS
• Polyacrylate resin comonomer; perfume fixative.
• Methanol + isophthalic acid (esterification)
• 2020: 1,000,000 - <5,000,000 lb
• (1979) PROBABLY GREATER THAN 2.27X10+6 G

Synonyms

DIMETHYL ISOPHTHALATE; 1459-93-4; Dimethyl m-phthalate; Dimethyl benzene-1,3-dicarboxylate; Methyl isophthalate; Isophthalic acid dimethyl ester; Dimethyl 1,3-benzenedicarboxylate; Morflex 1129; 1,3-Benzenedicarboxylic acid, dimethyl ester; Isophthalic acid, dimethyl ester; Methyl 3-(carbomethoxy)benzoate; NSC 15313; HSDB 6138; 1,3-Benzenedicarboxylic acid, 1,3-dimethyl ester; EINECS 215-951-9; Dimethylester kyseliny isoftalove

Frequently Asked Questions

What are the CAS number and molecular formula of Dimethyl isophthalate?

CAS 1459-93-4; molecular formula C10H10O4; molecular weight — g/mol.

What other names is Dimethyl isophthalate known by?

DIMETHYL ISOPHTHALATE, 1459-93-4, Dimethyl m-phthalate, Dimethyl benzene-1,3-dicarboxylate, Methyl isophthalate, Isophthalic acid dimethyl ester.

What is the regulatory status of Dimethyl isophthalate?

Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is Dimethyl isophthalate classified as hazardous?

2% of GHS notifications report no hazard classification (3 of 152).

What are the key physical properties of Dimethyl isophthalate?

Boiling Point: 282 °C; Melting Point: 67.5 °C; Flash Point: 280 °F (138 °C) (Closed cup); Density: 1.194 g/cu cm at 20 °C.

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.