Dihexyl Phthalate

Description

Dihexyl Phthalate · CAS 84-75-3 · C20H30O4. UNII 42MAH1QFG5. Boiling Point: 662 °F at 735 mmHg (NTP, 1992); Boiling Point: 210 °C at 5 mm Hg; Boiling Point: 662 °F at 735 mmHg.

Identification

CAS Registry Number	84-75-3
PubChem CID	6786
Molecular formula	C20H30O4
IUPAC name	dihexyl benzene-1,2-dicarboxylate
UNII (FDA)	42MAH1QFG5

Computed Descriptors

Molecular Weight	334.4
XLogP3	6.9
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	14
Exact Mass	334.21440943
Monoisotopic Mass	334.21440943
Topological Polar Surface Area	52.6
Heavy Atom Count	24
Formal Charge	0

Physical & Chemical Properties

Boiling Point	662 °F at 735 mmHg (NTP, 1992)
Boiling Point	210 °C at 5 mm Hg
Boiling Point	662 °F at 735 mmHg
Melting Point	-72 °F (NTP, 1992)
Melting Point	-58 °C
Melting Point	-72 °F
Flash Point	350 °F (NTP, 1992)
Flash Point	350 °F
Solubility	In water, 0.05 mg/L at 25 °C
Density	1.010-1.016 at 20 °C/20 °C

Physical description & handling notes

• Di-n-hexyl phthalate is a yellow-brown oily viscous liquid with a slight aromatic odor. Insoluble in water. (NTP, 1992)
• Clear oily liquid; [HSDB] Yellow-brown viscous liquid; [CAMEO] Clear colorless oily liquid; [MSDSonline]
• Yellow-brown oily viscous liquid with a slight aromatic odor.
• Clear, oily liuid
• Slightly aromatic
• 381 °F; 193 °C /(method not specified)/

Regulatory Status

GHS notification summary	6.2% (3 / 48)

GHS Hazard Classification

GHS notification summary	6.2% (3 / 48)
Reported hazard statements	H360 (91.7%), H302, H371, H400, H410

Documented Uses

• Used as plasticizer; Used to make plastisols for automobile parts and dip-molded products; [HSDB]
• Plasticizer for cellulose ester and vinyl plastics.
• DnC6P is manufactured by esterifying phthalic anhydride and hexanol in the presence of sulfuric acid.
• Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#4947]
• This chemical is listed as an Extended High Production Volume (EHPV). Chemicals listed as EHPV were produced in or imported into the U.S. in >1 million pounds according to the 2002 Toxic Substances Control Act (TSCA) Inventory Update. The EHPV program is a voluntary initiative that allows companies to demonstrate that adequate screening data exist for organic HPV chemicals.
• 1,2-Benzenedicarboxylic acid, 1,2-dihexyl ester: ACTIVE

Synonyms

DIHEXYL PHTHALATE; 84-75-3; Di-n-hexyl phthalate; dihexyl benzene-1,2-dicarboxylate; Di-n-hexylphthalate; 1,2-Benzenedicarboxylic acid, dihexyl ester; Phthalic acid, dihexyl ester; N-Dihexyl phthalate; Dihexyl 1,2-benzenedicarboxylate; Bis(n-hexyl) phthalate; Hexyl phthalate, 1,2-; Dihexylester kyseliny ftalove; DTXSID6025068; 1,2-Benzenedioic acid dihexyl ester; AI3-04274 (USDA); 42MAH1QFG5

Frequently Asked Questions

What are the CAS number and molecular formula of Dihexyl Phthalate?

CAS 84-75-3; molecular formula C20H30O4; molecular weight — g/mol.

What other names is Dihexyl Phthalate known by?

DIHEXYL PHTHALATE, 84-75-3, Di-n-hexyl phthalate, dihexyl benzene-1,2-dicarboxylate, Di-n-hexylphthalate, 1,2-Benzenedicarboxylic acid, dihexyl ester.

Is Dihexyl Phthalate classified as hazardous?

6.2% of GHS notifications report no hazard classification (3 of 48).

What are the key physical properties of Dihexyl Phthalate?

Boiling Point: 662 °F at 735 mmHg (NTP, 1992); Boiling Point: 210 °C at 5 mm Hg; Boiling Point: 662 °F at 735 mmHg; Melting Point: -72 °F (NTP, 1992).

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.