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(2H)Ethynyl(2H5)benzene

Also known as: (H)Ethynyl(H)benzene, 1,2,3,4,5-pentadeuterio-6-(2-deuterioethynyl)benzene, 95atom%d, Benzene-1,2,3,4,5-d, 6-(ethynyl-d)-, ETHYNYLBENZENE-D6, Ethynylbenzene-d6, MFCD02093665, PHENYLACETYLENE-D6, PHENYLACETYLENE-D6, 95 ATOM % D, Phenylacetylen-d6, Phenylacetylene-d6, pentadeuterio-deuterioethynyl-benzene

(2H)Ethynyl(2H5)benzene (CAS 25837-47-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8D6 and a molecular weight of 108.170 g/mol. Key properties include a boiling point of 142.4±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 31.1±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25837-47-2
Jingsj CID
J-31939-1
Molecular Formula
C8D6
Molecular Weight
108.170 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point142.4±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point31.1±0.0 °C
Exact Mass108.084610
LogP2.40
Vapor Pressure7.0±0.1 mmHg at 25°C
Refractive Index1.542

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation

Activity & Biological Data

Additional Information[1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216.

Frequently Asked Questions

What is the CAS number of (2H)Ethynyl(2H5)benzene?

The CAS number of (2H)Ethynyl(2H5)benzene is 25837-47-2.

What are the molecular formula and molecular weight of (2H)Ethynyl(2H5)benzene?

(2H)Ethynyl(2H5)benzene has molecular formula C8D6 and molecular weight 108.170 g/mol.

Is (2H)Ethynyl(2H5)benzene hazardous?

(2H)Ethynyl(2H5)benzene has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of (2H)Ethynyl(2H5)benzene?

For (2H)Ethynyl(2H5)benzene, Upstream Products: Phenyl-d5-acetylene.

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

Last updated:

How to cite: Jingsj. "(2H)Ethynyl(2H5)benzene (CAS 25837-47-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31939-1 (accessed 2026-11-09).

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