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tert-Pentylbenzene

Also known as: (1,1-dimethylpropyl)benzene, (2-Methyl-2-butanyl)benzene, (2-Methylbutan-2-yl)benzene, 2-Methyl-2-phenylbutane, 2-Phenyl-2-methylbutane, 2-methylbutan-2-ylbenzene, 2X1&1&R, Benzene, (1,1-dimethylpropyl)-, Benzene, tert-amyl, Benzene, tert-pentyl-, Benzene,tert-pentyl, EINECS 218-076-0, MFCD00015187, dimethylisopropylbenzene, t-pentylbenzene, tert-Amylbenzene, trimethylethylbenzene

tert-Pentylbenzene (CAS 2049-95-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H16 and a molecular weight of 148.245 g/mol. Key properties include a boiling point of 190.1±7.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 59.3±8.5 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H317 — May cause an allergic skin reaction and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2049-95-8
Jingsj CID
J-1492771-1
Molecular Formula
C11H16
Molecular Weight
148.245 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point190.1±7.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point59.3±8.5 °C
Exact Mass148.125198
LogP4.44
Vapor Pressure0.8±0.2 mmHg at 25°C
Refractive Index1.483

GHS Safety & Compliance

Flammable / Irritant / Environmental HazardSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H317 — May cause an allergic skin reaction
  • H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2902909090
Summary2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of tert-Pentylbenzene?

The CAS number of tert-Pentylbenzene is 2049-95-8.

What are the molecular formula and molecular weight of tert-Pentylbenzene?

tert-Pentylbenzene has molecular formula C11H16 and molecular weight 148.245 g/mol.

Is tert-Pentylbenzene hazardous?

tert-Pentylbenzene has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H317 — May cause an allergic skin reaction; H411 — Toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of tert-Pentylbenzene?

For tert-Pentylbenzene, Upstream Products: Cumene, Isopentyl ether, benzene; Downstream Products: (2-Methylbutyl)benzene, (1,2-Dimethylpropyl)benzene, 2,2-dimethylbutanoic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "tert-Pentylbenzene (CAS 2049-95-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492771-1 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.