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Butylbenzene

Also known as: 4-n-butyl-benzene, 4-phenyl butane, Benzene,butyl, EINECS 203-209-7, MFCD00009463, butyl-benzene, butylbenzene, n-Butylbenzene

Butylbenzene (CAS 104-51-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H14 and a molecular weight of 134.21800 g/mol. Key properties include a melting point of -88 °C, a boiling point of 183 °C(lit.), a density of 0.86 g/mL at 25 °C(lit.) and a flash point of 59.4 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
104-51-8
Jingsj CID
J-1993019-2
Molecular Formula
C10H14
Molecular Weight
134.21800 g/mol
Category
Aromatic Hydrocarbons
Last updated
11/2/2026

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Physicochemical Properties

Melting Point-88 °C
Boiling Point183 °C(lit.)
Density0.86 g/mL at 25 °C(lit.)
Flash Point59.4 °C
Exact Mass134.11000
LogP3.02920
Additional Property>1 (vs air)
Vapor Pressure1.03 mm Hg ( 23 °C)
Refractive Indexn20/D 1.489(lit.)
Additional PropertyINSOLUBLE

GHS Safety & Compliance

Flammable / Acute Toxicity / Health HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled
  • H370 — Causes damage to organs
  • H412 — Harmful 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 Butylbenzene?

The CAS number of Butylbenzene is 104-51-8.

What are the molecular formula and molecular weight of Butylbenzene?

Butylbenzene has molecular formula C10H14 and molecular weight 134.21800 g/mol.

Is Butylbenzene hazardous?

Butylbenzene has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.

What are the upstream and downstream products of Butylbenzene?

For Butylbenzene, Upstream Products: 1-Bromo-4-butylbenzene, Butyrophenone, Diethylzinc; Downstream Products: 4-Butylbenzyl Bromide, 1-chloro-4-phenylbutane, 1-Bromo-4-butylbenzene.

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

Last updated:

How to cite: Jingsj. "Butylbenzene (CAS 104-51-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993019-2 (accessed 2026-11-06).

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