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InventoryRef 9017918/02/2014

PHENYLPROPANE

Benzene, propyl,Isocumene

PHENYLPROPANE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 103-65-1
CAS 103-65-1PubChem CID 7668

Propylbenzene

Propylbenzene is an alkylbenzene that is benzene having one of its aromatic hydrogens substituted by a propyl group. — ChEBI

IUPAC name
propylbenzene
Molecular formula
C9H12
Molecular weight
120.19 g/mol
Exact mass
120.093900383 Da
XLogP3
3.7
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
0
Covalent units
1
Defined stereocentres
0

Also known as

N-PROPYLBENZENE1-PhenylpropanePhenylpropaneIsocumeneBenzene, propyl-1-Propylbenzene0WR86ZHG2ZNSC-16941
16 more reported names
CHEBI:42630benzene, propylRefChem:6174203-132-9n-Propyl benzenePropylbenzene, n-Propyl-benzeneNSC 16941Propylbenzene, analytical standardpropyl benzeneHSDB 5353EINECS 203-132-9UN2364UNII-0WR86ZHG2ZPropylbenzene (all isomers)AI3-23862
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:42630

propylbenzene

An alkylbenzene that is benzene having one of its aromatic hydrogens substituted by a propyl group.

Formula
C9H12
Average mass
120.195 g/mol
Monoisotopic mass
120.09390 Da
Formal charge
0
  • alkylbenzene — is a (CHEBI:38976)
  • alkylbenzene — is a (CHEBI:38976)
Additional curated names
propylbenzene1-Phenylpropane1-PropylbenzeneIsocumenen-PropylbenzenePhenylpropane
Cross-references from this source
  • CAS: 103-65-1 — ChemIDplus
  • CAS: 103-65-1 — NIST Chemistry WebBook
  • REGISTRY_NUMBER: 1903006 — Reaxys
  • MANUAL_X_REF: HMDB0059877 — HMDB

Mapped by: Exact CAS cross-reference in the ChEBI compound record. Source updated: 2015-10-23. Retrieved: 2026-08-31. Open source record

NIH PubChem PUG-View
Exact identifier match7668

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

  • First Aid: INHALATION: Call for medical aid. Remove the victim to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.; SKIN: Wash with soap and copious amounts of water.; EYES: Flush with copious amounts of water for at least 15 minutes. (USCG, 1999) Source: CAMEO Chemicals
  • ERG2024, Guide 128 (n-Propylbenzene): General First Aid:; · Call 911 or emergency medical service.; · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.; · Move victim to fresh air if it can be done safely.; · Administer oxygen if breathing is difficult.; · If victim is not breathing:; -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.; -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).; -- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.; · Remove and isolate contaminated clothing and shoes.; · For minor skin contact, avoid spreading material on unaffected skin.; · In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.; · For severe burns, immediate medical attention is required.; · Effects of exposure (inhalation, ingestion, Source: Emergency Response Guidebook (ERG)
  • Signal: Danger Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • GHS Hazard Statements: H226: Flammable liquid and vapor [Warning Flammable liquids]; H304: May be fatal if swallowed and enters airways [Danger Aspiration hazard]; H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]; H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Precautionary Statement Codes: P210, P233, P240, P241, P242, P243, P261, P271, P273, P280, P301+P316, P303+P361+P353, P304+P340, P319, P331, P370+P378, P391, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement) Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
  • Note: This chemical does not meet GHS hazard criteria for < 0.1% (1 of 1188) of reports. Source: European Chemicals Agency (ECHA)
  • Signal: Danger Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H226 (> 99.9%): Flammable liquid and vapor [Warning Flammable liquids]; H304 (> 99.9%): May be fatal if swallowed and enters airways [Danger Aspiration hazard]; H319 (10.4%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H335 (> 99.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]; H411 (> 99.9%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P210, P233, P240, P241, P242, P243, P261, P264+P265, P271, P273, P280, P301+P316, P303+P361+P353, P304+P340, P305+P351+P338, P319, P331, P337+P317, P370+P378, P391, P403+P233, P403+P235, P405, 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 1188 reports by companies from 25 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 1 of 1188 reports by companies.; There are 24 notifications provided by 1187 of 1188 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)
  • Signal: Warning Source: NITE-CMC
  • GHS Hazard Statements: H226: Flammable liquid and vapor [Warning Flammable liquids] Source: NITE-CMC
  • Precautionary Statement Codes: P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
  • NFPA Health Rating: 2 - Materials that, under emergency conditions, can cause temporary incapacitation or residual injury. Source: Hazardous Substances Data Bank (HSDB)
  • NFPA Fire Rating: 3 - Liquids and solids that can be ignited under almost all ambient temperature conditions. Materials produce hazardous atmospheres with air under almost all ambient temperatures or, though unaffected by ambient temperatures, are readily ignited under almost all conditions. 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 of 138 was calculated for n-propylbenzene(SRC), using a log Kow of 3.69(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is high. Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 955(SRC), determined from molecular connectivity indices(2), and measured values of 495 to 725(3,4) indicates that n-propylbenzene is expected to have low mobility in soil(SRC). Volatilization of n-propylbenzene from moist soil surfaces is expected to be an important fate process(7) given a Henry's Law constant of 1.05X10-2 atm-cu m/mole(5). The potential for volatilization of n-propylbenzene from dry soil surfaces may exist(SRC) based upon a vapor pressure of 3.42 mm Hg(6). Biodegradation from soil may occur based on results from activated sludge studies(8). Source: Hazardous Substances Data Bank (HSDB)
  • Environmental Fate: AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 955(SRC), determined from molecular connectivity indices(2), as well as measured Koc values ranging from 495 to 725(3,4), indicate that n-propylbenzene is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(5) based upon a Henry's Law constant of 1.05X01-2 atm-cu m/mole(6). Using this Henry's Law constant and an estimation method(5), volatilization half-lives for a model river and model lake are 1 hr and 4 days, respectively(SRC). Volatilization half-lives of 1.3 to 19 days have been predicted for the Narraganset Bay near RI where volatilization is expected to be the major removal process(10). Aquatic hydrolysis is not an important fate process(SRC) due to the lack of hydrolyzable functional groups(5). According to a classification scheme(7), an estimated BCF of 138(SRC), from its log Kow of 3.69(8) and a regression-derived equation(9), suggests the potential for bioconcentration in aquatic organisms is moderate. Biodegradation from water may occur based on activated sludge studies, with theoretical BODs ranging from 21.8 to 43.7%(11,12). 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), n-propylbenzene, which has a vapor pressure of 3.42 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase n-propylbenzene 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 2 days(SRC), calculated from its rate constant of 5.0X10-12 cu cm/molecule-sec at 25 °C(3). The detection of n-propylbenzene in rainwater samples(4) suggests that physical removal from the atmosphere by wet deposition is possible(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.

Inventory details for PHENYLPROPANE

INCI name

PHENYLPROPANE

Description

Benzene, propyl,Isocumene

Record provenance

Inventory reference
90179
Imported identity
PHENYLPROPANE
Source update
18/02/2014
European Commission CosIng source notes
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Key data

CAS
103-65-1
EC
203-132-9
Restriction
—
Function
SOLVENT
Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#20748 · PHENYLPROPANE

Ingredients with overlapping formulation functions

PERFLUOROTETRALINDETANGLING, SKIN CONDITIONING, SOLVENT
PETROLEUM DISTILLATESANTIFOAMING, SOLVENT
PHENOXYISOPROPANOLPRESERVATIVE, SOLVENT
PHENOXYPROPANEDIOLSOLVENT
PHENYLPROPANOLFRAGRANCE, PERFUMING, SOLVENT
PHOSPHATE BUFFERED SALINESOLVENT
PIG PLACENTA WATERHUMECTANT; SOLVENT; SKIN CONDITIONING - MISCELLANEOUS
POLY 1,2-BUTANEDIOL-6 PROPYLENE GLYCOLSOLVENT

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How PHENYLPROPANE appears in the CosIng inventory

The CosIng inventory lists PHENYLPROPANE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

PHENYLPROPANE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

PHENYLPROPANE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, PHENYLPROPANE carries the following function designation(s):

CAS 103-65-1 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.
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Source note for PHENYLPROPANE

This page reproduces the CosIng inventory entry for PHENYLPROPANE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research PHENYLPROPANE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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