Hept-1-yne

Also known as: 1-HEPTYNE, 1-HEPTYNE, 98%1-HEPTYNE, 98%1-HEPTYNE, 98%1-HEPTYNE, 98%, 1-Heptyne, 1-heptanone, 1-n-heptyne, Amylacetylene, EINECS 211-051-5, Hept-1-in, I-Heptin, MFCD00009529, N-AMYLACETYLENE, enanthylidene, hept-1-yne, n-C5H11CequivCH, n-amylacetylene, n-pentylacetylene, pentylacetylide

Hept-1-yne (CAS 628-71-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H12 and a molecular weight of 96.170 g/mol. Key properties include a melting point of -81 °C, a boiling point of 99.7±3.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -2.2±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 628-71-7
Jingsj CID: J-45791-6
Molecular Formula: C₇H₁₂
Molecular Weight: 96.170 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	-81 °C
Boiling Point	99.7±3.0 °C at 760 mmHg
Density	0.8±0.1 g/cm3
Flash Point	-2.2±0.0 °C
Exact Mass	96.093903
LogP	3.12
Vapor Pressure	43.5±0.1 mmHg at 25°C
Refractive Index	1.419

Customs & Trade Information

HS Code	2901299090
Summary	2901299090 unsaturated acyclic 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 Hept-1-yne?

The CAS number of Hept-1-yne is 628-71-7.

What are the molecular formula and molecular weight of Hept-1-yne?

Hept-1-yne has molecular formula C7H12 and molecular weight 96.170 g/mol.

What are the upstream and downstream products of Hept-1-yne?

For Hept-1-yne, Upstream Products: Heptanal, 1-Bromopentane, Sodium acetylide; Downstream Products: cis-4-Decen-1-ol, 5-Heptylresorcinol, 1-Iodoheptane.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Hept-1-yne (CAS 628-71-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45791-6 (accessed 2026-11-06).

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