Dibutyl phthalate (DBP)

Description

Dibutyl phthalate (DBP) · CAS 84-74-2 · C16H22O4. UNII 2286E5R2KE. Boiling Point: 644 °F at 760 mmHg (NTP, 1992); Boiling Point: 340 °C; Boiling Point: 337.00 to 340.00 °C. @ 760.00 mm Hg.

Identification

CAS Registry Number	84-74-2
PubChem CID	3026
Molecular formula	C16H22O4
IUPAC name	dibutyl benzene-1,2-dicarboxylate
UNII (FDA)	2286E5R2KE

Computed Descriptors

Molecular Weight	278.34
XLogP3	4.7
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	10
Exact Mass	278.15180918
Monoisotopic Mass	278.15180918
Topological Polar Surface Area	52.6
Heavy Atom Count	20
Formal Charge	0

Physical & Chemical Properties

Boiling Point	644 °F at 760 mmHg (NTP, 1992)
Boiling Point	340 °C
Boiling Point	337.00 to 340.00 °C. @ 760.00 mm Hg
Boiling Point	644 °F
Boiling Point	340 °C @760 [mm Hg]
Melting Point	-31 °F (NTP, 1992)
Melting Point	-35 °C
Melting Point	35 °C
Melting Point	-31 °F
Flash Point	315 °F (NTP, 1992)

Physical description & handling notes

• Liquid; CBI
• Colorless to faint-yellow, oily liquid with a slight, aromatic odor; [NIOSH]
• Solid
• COLOURLESS-TO-YELLOW VISCOUS LIQUID WITH CHARACTERISTIC ODOUR.
• Colorless to faint-yellow, oily liquid with a slight, aromatic odor.
• Colorless to faint yellow, oily liquid

Regulatory Status

Regulatory & Food Contact	CIR / INCI: Cosmetics ingredient -> Solvent CIR / INCI: Cosmetic ingredients (Dibutyl Phthalate) -> CIR (Cosmetic Ingredient Review)
GHS notification summary	0.1% (1 / 1322)

GHS Hazard Classification

GHS notification summary	0.1% (1 / 1322)
Reported hazard statements	H400, H360 (97.1%), H411, H317, H335, H372, H370, H373

Documented Uses

• CIR ingredient: Dibutyl Phthalate
• Dibutyl phthalate is used to help make plastics soft and flexible. It is used in shower curtains, raincoats, food wraps, bowls, car interiors, vinyl fabrics, floor tiles, and other products.
• Plasticizer (added to polymers to effect flexibility and/or toughness); also used as an insect repellant in clothing and a solvent for perfumes, oils, and textiles; [ACGIH] Used in epoxy resins as a non-reactive solvent; [Kanerva, p. 1779]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Plastic Composites Manufacturing [Category: Industry]

Synonyms

dibutyl phthalate; 84-74-2; Di-n-butyl phthalate; n-Butyl phthalate; Butyl phthalate; Genoplast B; Palatinol C; Celluflex DPB; Unimoll DB; DIBUTYLPHTHALATE; Staflex DBP; Elaol; Ergoplast FDB; Hexaplas M/B; dibutyl benzene-1,2-dicarboxylate; Witcizer 300

Frequently Asked Questions

What are the CAS number and molecular formula of Dibutyl phthalate (DBP)?

CAS 84-74-2; molecular formula C16H22O4; molecular weight — g/mol.

What other names is Dibutyl phthalate (DBP) known by?

dibutyl phthalate, 84-74-2, Di-n-butyl phthalate, n-Butyl phthalate, Butyl phthalate, Genoplast B.

What is the regulatory status of Dibutyl phthalate (DBP)?

Documented regulatory listings: CIR / INCI: Cosmetics ingredient -> Solvent; CIR / INCI: Cosmetic ingredients (Dibutyl Phthalate) -> CIR (Cosmetic Ingredient Review).

Is Dibutyl phthalate (DBP) classified as hazardous?

0.1% of GHS notifications report no hazard classification (1 of 1322).

What are the key physical properties of Dibutyl phthalate (DBP)?

Boiling Point: 644 °F at 760 mmHg (NTP, 1992); Boiling Point: 340 °C; Boiling Point: 337.00 to 340.00 °C. @ 760.00 mm Hg; Boiling Point: 644 °F.

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.