二苯甲酸二乙二醇酯

Description

di(ethylene glycol) dibenzoate · CAS 120-55-8 · C18H18O5. UNII YAI66YDY1C. Boiling Point: 225-227 °C @ 3 MM HG; Boiling Point: at 0.7kPa: 236 °C; Melting Point: -28 °C.

Identification

CAS Registry Number	120-55-8
PubChem CID	8437
Molecular formula	C18H18O5
IUPAC name	2-(2-benzoyloxyethoxy)ethyl benzoate
UNII (FDA)	YAI66YDY1C

Computed Descriptors

Molecular Weight	314.3
XLogP3	3.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	10
Exact Mass	314.11542367
Monoisotopic Mass	314.11542367
Topological Polar Surface Area	61.8
Heavy Atom Count	23
Formal Charge	0

Physical & Chemical Properties

Boiling Point	225-227 °C @ 3 MM HG
Boiling Point	at 0.7kPa: 236 °C
Melting Point	-28 °C
Melting Point	28 °C
Flash Point	450 °F (232 °C) (CLOSED CUP)
Flash Point	232 °C
Density	1.2 @ 68 °F (20 °C)
Vapor Pressure	0.09 [mmHg]
Viscosity	110 mPa.s @ 20 °C

Physical description & handling notes

• Liquid
• Liquid; [Hawley] Solid; mp = 28 deg C; [ICSC] Liquid; mp = -28 deg C; [HSDB] 89.9% Diethylene glycol, dibenzoate freezing point = 24 deg C; [eChemPortal: HPVIS] Colorless to straw-colored viscous liquid; mp ~ 16 deg C; [MSDSonline]
• CRYSTALS.
• SOL IN WATER
• Solubility in water: miscible
• Relative density (water = 1): 1.2

Regulatory Status

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Emollient; Plasticiser
GHS notification summary	78.4% (297 / 379)

GHS Hazard Classification

GHS notification summary	78.4% (297 / 379)
Reported hazard statements	H411 (21.1%)

Documented Uses

• Used as plasticizer for resins (cellulose acetate butyrate, polyvinyl acetate, cellulose nitrate, ethyl cellulose, and polymethyl methacrylate) and a stabilizer for perfumes; [HSDB]
• PLASTICIZER FOR CELLULOSE ACETATE BUTYRATE RESINS
• PLASTICIZER FOR CELLULOSE NITRATE RESINS
• PLASTICIZER FOR ETHYL CELLULOSE RESINS
• For more Uses (Complete) data for DIETHYLENE GLYCOL, DIBENZOATE (6 total), please visit the HSDB record page.
• Plastics -> Polymer Type -> PVC (soft)

Synonyms

Diethylene glycol dibenzoate; 120-55-8; Benzo Flex 2-45; Dibenzoyldiethyleneglycol ester; DIETHYLENE GLYCOL, DIBENZOATE; YAI66YDY1C; Benzoflex 2-45; Benzoyloxyethoxyethyl benzoate; Ethanol, 2,2'-oxybis-, dibenzoate; Benzoic acid, diester with diethylene glycol; DTXSID0026967; FLEXOL 2GB; MONOCIZER PB 3; VELSICOL 2-45; DTXCID006967; 204-407-6

Frequently Asked Questions

What are the CAS number and molecular formula of di(ethylene glycol) dibenzoate?

CAS 120-55-8; molecular formula C18H18O5; molecular weight — g/mol.

What other names is di(ethylene glycol) dibenzoate known by?

Diethylene glycol dibenzoate, 120-55-8, Benzo Flex 2-45, Dibenzoyldiethyleneglycol ester, DIETHYLENE GLYCOL, DIBENZOATE, YAI66YDY1C.

What is the regulatory status of di(ethylene glycol) dibenzoate?

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

Is di(ethylene glycol) dibenzoate classified as hazardous?

78.4% of GHS notifications report no hazard classification (297 of 379).

What are the key physical properties of di(ethylene glycol) dibenzoate?

Boiling Point: 225-227 °C @ 3 MM HG; Boiling Point: at 0.7kPa: 236 °C; Melting Point: -28 °C; Melting Point: 28 °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.