Benzene,1-(1,1-dimethylethyl)-4-ethynyl-

Also known as: 1-(1,1-Dimethylethyl)-4-ethynylbenzene, 1-(tert-Butyl)-4-ethynylbenzene, 1-tert-butyl-4-ethynylbenzene, 4-(TERT-BUTYL)PHENYLACETYLENE, 4-(TERT-BUTYL)PHENYLACETYLENE,90+%, 4-(tert-BUTYL)PHENYLACETYLENE 95%, 4-tert-Butylphenylacetylene, Benzene, 1-(1,1-diMethylethyl)-4-ethynyl-, MFCD00190197, P-T-BUTYLPHENYLACETYLENE, TIMTEC-BB SBB008840

Benzene,1-(1,1-dimethylethyl)-4-ethynyl- (CAS 772-38-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H14 and a molecular weight of 158.24000 g/mol. Key properties include a boiling point of 70 °C2 mm Hg(lit.), a density of 0.877 g/mL at 25 °C(lit.) and a flash point of 82.2 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.: 772-38-3
Jingsj CID: J-40920-1
Molecular Formula: C₁₂H₁₄
Molecular Weight: 158.24000 g/mol
Category: Aromatic Hydrocarbons
Last updated: 11/2/2026

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Physicochemical Properties

Boiling Point	70 °C2 mm Hg(lit.)
Density	0.877 g/mL at 25 °C(lit.)
Flash Point	82.2 °C
Exact Mass	158.11000
LogP	2.96540
Refractive Index	1.528-1.53

Customs & Trade Information

HS Code	2902909090
Summary	2902909090 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 Benzene,1-(1,1-dimethylethyl)-4-ethynyl-?

The CAS number of Benzene,1-(1,1-dimethylethyl)-4-ethynyl- is 772-38-3.

What are the molecular formula and molecular weight of Benzene,1-(1,1-dimethylethyl)-4-ethynyl-?

Benzene,1-(1,1-dimethylethyl)-4-ethynyl- has molecular formula C12H14 and molecular weight 158.24000 g/mol.

What are the upstream and downstream products of Benzene,1-(1,1-dimethylethyl)-4-ethynyl-?

For Benzene,1-(1,1-dimethylethyl)-4-ethynyl-, Upstream Products: 1-tert-Butyl-4-iodobenzene, 1-Bromo-4-tert-butylbenzene, Trimethylsilylacetylene; Downstream Products: 2-(4-tert-butylphenyl)acetaldehyde, 4-tert-Butylbenzonitrile, 2-Bromo-1-(4-tert-butylphenyl)ethanone.

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

Last updated: 11/2/2026

How to cite: Jingsj. "Benzene,1-(1,1-dimethylethyl)-4-ethynyl- (CAS 772-38-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40920-1 (accessed 2026-11-09).

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