Ingredient Dictionary

DIBENZYL ETHER

Dibenzyl ether is a benzyl ether in which the oxygen atom is connected to two benzyl groups.

Definition

Dibenzyl ether is a benzyl ether in which the oxygen atom is connected to two benzyl groups. It has a role as a metabolite.

Source: PubChem

US FDA substance register · UNII 2O6CNO27RJ · registered name Dibenzyl ether · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

Safety & regulatory references

Restricted: International fragrance standard (IFRA)

Source: IFRA fragrance standards

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Names & identifiers

DIBENZYL ETHERINCIBenzene, 1,1'-[oxybis(methylene)]bis-Synonym

CAS No.chemical registry number: 103-50-4
EC No.EU chemical inventory number: 203-118-2
DTXSIDUS EPA chemical ID: DTXSID5025819
DTXCIDUS EPA compound ID: DTXCID005819

IUPAC: 1,1'-[Oxybis(methylene)]dibenzene
Molecular formula: C14H14O
Molecular weight: 198.265 g/mol

Measured properties

Appearance: Dibenzyl ether is a colorless liquid with a mild odor. · Colorless, unstable liquid, [Hawley] Immiscible or difficult to mix in water, [MSDSonline]
Odour: FAINT, ALMOND ODOR · VERY SLIGHT ODOR OF BENZALDEHYDE
Boiling point: 568 °F at 760 mmHg (decomposes) (NTP, 1992) · 295-298 °C WITH DECOMP
Melting point: 38.3 °F (NTP, 1992) · 3.6 °C
Solubility: less than 1 mg/mL at 70 °F (NTP, 1992) · PRACTICALLY INSOL IN WATER, MISCIBLE WITH ETHANOL, ETHER, CHLOROFORM, ACETONE
Density: 1.0428 at 68 °F (USCG, 1999) - Denser than water, will sink · 0.99735 AT 25 °C/4 °C
Stability: UNSTABLE, DECOMP SLOWLY AT ORDINARY TEMP · VOLATILE
Viscosity: Liquid viscosity = 8.719X10-3 Pa.s @ melting point
Melting/freezing point: 2.5 ℃
Flash point: 135 ℃(c.c.)
Vapour pressure: 0.056 ㎜Hg (25℃)
Water solubility: 0.004 g/100㎖ (35℃)
Vapour density: 6.84
Relative density: 1.047 (20℃)
n-Octanol/water partition coefficient (Kow): 3.31

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 7 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Fragrance3
Flavouring and nutrient3
Plasticizer1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

4 skin studies and 2 eye studies are on record.

Classed as moderate1Classed as low3

The studies disagree (the most common conclusion covers 25%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 6 studies

Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation)
Moderate or Mild Irritation
skin irritation: in vivo · Screening · other guideline: US CPSC 1500.41 according to OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Category 3
Skin Irritation · Screening
Classification not possible
Skin Sensitization · Screening
Category 2B
Eye Irritation · Screening
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: US CPSC 1500.42 according to OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to