Propylbenzene is an alkylbenzene that is benzene having one of its aromatic hydrogens substituted by a propyl group.
Definition
Propylbenzene is an alkylbenzene that is benzene having one of its aromatic hydrogens substituted by a propyl group.
Source: PubChem
US FDA substance register · UNII 0WR86ZHG2Z · registered name PROPYLBENZENE · single chemical substance
Phenylpropane is the organic compound that conforms to the formula:
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 103-65-1
- EC No.EU chemical inventory number
- 203-132-9
- DTXSIDUS EPA chemical ID
- DTXSID3042219
- DTXCIDUS EPA compound ID
- DTXCID1022219
- IUPAC
- Propylbenzene
- Molecular formula
- C9H12
- Molecular weight
- 120.195 g/mol
Measured properties
- Appearance
- N-propyl benzene appears as a clear colorless liquid. Insoluble in water and less dense than water. Flash point 86 °F. Mildly toxic by ingestion and inhalation. Used to make other chemicals. · Liquid
- Boiling point
- 318.2 °F at 760 mmHg (USCG, 1999) · 159.2 °C
- Melting point
- -146.2 °F (USCG, 1999) · -99.5 °C
- Solubility
- Very slightly sol in water (0.06 g/l), sol in alcohol, ether · Miscible in ethanol, ethyl ether, and acetone
- Density
- 0.862 (USCG, 1999) - Less dense than water, will float · Specific gravity: 0.8620 @ 20 °C/4 °C
- Colour
- colourless
- Melting/freezing point
- -99 ℃
- Initial boiling point and range
- 159 ℃
- Vapour pressure
- 2 ㎜Hg
- Water solubility
- 23.4 ㎎/ℓ (25℃)
- Vapour density
- 4.14
- Relative density
- 0.862
- n-Octanol/water partition coefficient (Kow)
- 3.69
- Viscosity
- (&, lt, 32.6 SUS)
- Molecular weight
- 120.20
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 8 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.
- Solvent6
- Processing aids not otherwise specified2
Source: US EPA CompTox dashboard
Related literature
- Melatonin Reduces Lignin Biosynthesis by Fostering Epigenetic Modifications in Water Bamboo Shoots under Cold Storage. · 2025
- Improving Resistance of Mango to Colletotrichum gloeosporioides by Activating Reactive Oxygen Species and Phenylpropane Metabolism of Bacillus amyloliquefaciens GSBa-1 · 2024
- Formulation and Evaluation of Natural Pigmented Lipstick from Roselle Flower and Secang Wood Extracts · 2024
- Multivalent Role of Essential Oil in Cosmetics: A Review · 2022
- Network of multi-omics reveals the mechanism of russeting under rainwater in pears · 2020
Linked databases 16
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- EU CosIng ingredient list 2
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- NIST Chemistry WebBook
- PubChem 2
- Tlooto literature search 2 3 4 5
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English · Japanese · Chinese