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CAS 103-50-4

CAS 103-50-4 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 103-50-4
CAS 103-50-4PubChem CID 7657

Dibenzyl ether

Dibenzyl ether is a colorless liquid with a mild odor. — CAMEO Chemicals

IUPAC name
phenylmethoxymethylbenzene
Molecular formula
C14H14O
Molecular weight
198.26 g/mol
Exact mass
198.104465066 Da
XLogP3
3.3
Topological polar surface area
9.2 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
1
Defined stereocentres
0

Also known as

Benzyl etherBenzyl oxideDibenzyletherPlastikator BABA (plasticizer)Plasticator BAEther, dibenzylFEMA No. 2371
16 more reported names
FEMA Number 23711,1-(Oxybis(methylene))bisbenzeneBenzene, 1,1'-(oxybis(methylene))bis-Benzene, 1,1'-[oxybis(methylene)]bis-Benzene, 1,1'-oxybis(methylene-2O6CNO27RJNSC-5931CHEBI:87411RefChem:586440CHEBI:59859203-118-2(Oxybis(methylene))dibenzene[(Benzyloxy)methyl]benzeneDibenzylether [Czech]HSDB 6030Tribenoside EP Impurity D
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:87411

dibenzyl ether

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

Formula
C14H14O
Average mass
198.265 g/mol
Monoisotopic mass
198.10447 Da
Formal charge
0
  • benzyl ether — is a (CHEBI:59859)
  • metabolite — has role (CHEBI:25212)
  • metabolite — has role (CHEBI:25212)
  • benzyl ether — is a (CHEBI:59859)
Additional curated names
1,1'-[oxybis(methylene)]dibenzene[(benzyloxy)methyl]benzene
Cross-references from this source
  • CAS: 103-50-4 — ChemIDplus
  • CAS: 103-50-4 — NIST Chemistry WebBook
  • REGISTRY_NUMBER: 1911156 — Reaxys
  • MANUAL_X_REF: HMDB0032078 — HMDB

Mapped by: Exact CAS cross-reference in the ChEBI compound record. Source updated: 2015-08-28. Retrieved: 2026-08-31. Open source record

NIH PubChem PUG-View
Exact identifier match7657

Attributed physical-property, hazard, environmental and use annotations.

  • First Aid: EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.; SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.; INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, immediately transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not avail Source: CAMEO Chemicals
  • Note: This chemical does not meet GHS hazard criteria for 0.1% (3 of 2222) of reports. Source: European Chemicals Agency (ECHA)
  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H317 (65.6%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H319 (21.6%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H400 (68.5%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H410 (68.5%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]; H411 (11.7%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P261, P264+P265, P272, P273, P280, P302+P352, P305+P351+P338, P321, P333+P317, P337+P317, P362+P364, P391, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 2222 reports by companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 3 of 2222 reports by companies.; There are 15 notifications provided by 2219 of 2222 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]; H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]; H413 (100%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory. Source: European Chemicals Agency (ECHA)
  • Signal: Warning Source: NITE-CMC
  • GHS Hazard Statements: H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects] Source: NITE-CMC
  • Precautionary Statement Codes: P261, P271, P272, P280, P302+P352, P304+P340, P319, P321, P333+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • GHS Hazard Statements: H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]; H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard] Source: NITE-CMC
  • NFPA Health Rating: 0 - Materials that, under emergency conditions, would offer no hazard beyond that of ordinary combustible materials. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Fire Rating: 1 - Materials that must be preheated before ignition can occur. Materials require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Instability Rating: 0 - Materials that in themselves are normally stable, even under fire conditions. Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Bioconcentration: An estimated BCF value of 190 was calculated for dibenzyl ether(SRC), using an experimental log Kow of 3.31(1) and a recommended regression-derived equation(2). An 8-week bioconcentration study using carp and dibenzyl ether concentrations of 0.2 mg/l and 0.02 mg/l gave bioconcentration factors of 171-429 and 187-345, respectively(4). According to a classification scheme(3), these experimental BCF values suggest that bioconcentration in aquatic organisms is high(SRC). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a recommended classification scheme(1), an estimated Koc value of 1500(SRC), determined from an experimental log Kow(2) and a recommended regression-derived equation(3), indicates that dibenzyl ether will have slight mobility in soil(SRC). Volatilization of dibenzyl ether is not expected to occur from moist soils, based on an estimated Henry's Law constant of 8.3X10-8 atm-cu m/mol(4) or from dry soils based on an experimental vapor pressure of 1.03X10-3 mm Hg(5). According to a MITI biodegradation test, biodegradation of dibenzyl ether is not expected to be an important fate process in soil(6). However, another study with seawater and river water indicated biodegradation may be rapid(7). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: An estimated Koc value of 1500(SRC), determined from an experimental log Kow(1) and a recommended regression-derived equation(2), indicates that dibenzyl ether would adsorb to suspended solids and sediment(2,SRC) in the water. Dibenzyl ether will be essentially non-volatile from water surfaces based on an estimated Henry's Law constant of 8.3X10-8 atm-cu m/mole(SRC), developed using a fragment constant estimation method(3). Experimental BCF values of 171-429 and 187-345(5) suggest that bioconcentrate of dibenzyl ether will be high aquatic organisms(SRC) according to a classification scheme(4). According to a MITI biodegradation test, biodegradation of dibenzyl ether is not expected to be an important fate process in water(5). However, another study with seawater and river water indicated biodegradation may be rapid(6). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), dibenzyl ether, which has an experimental vapor pressure of 1.03X10-3 mm Hg at 25 °C(2) will exist as a vapor in the ambient atmosphere. Vapor-phase dibenzyl ether is degraded in the atmosphere by reaction with photochemically produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be about 18 hours(3,SRC). Source: Hazardous Substances Data Bank (HSDB)

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
EMBL-EBI ChEBIExact match2026-08-31
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 103-50-4

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CAS 103-50-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 103-50-4 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.