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Toluene-2,3,4,5,6-d5

Also known as: TOLUENE (RING-D5), Toluene-d5, 2,3,4,5,6-pentadeuteriotoluene, methylbenzene-d5, ar-pentadeuterio-toluene, 1,2,3,4,5-pentadeuterio-6-methylbenzene, (2,3,4,5,6-2H5)Toluene

Toluene-2,3,4,5,6-d5 (CAS 1603-99-2) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C7H3D5 and a molecular weight of 97.16920 g/mol. Key properties include a melting point of -93ºC(lit.), a boiling point of 110ºC(lit.), a density of 0.912 g/mL at 25ºC and a flash point of 4.4 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H304 and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
1603-99-2
Jingsj CID
J-34824-3
Molecular Formula
C7H3D5
Molecular Weight
97.16920 g/mol
Category
Solvents
Last updated
11/2/2026
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Physicochemical Properties

Melting Point-93ºC(lit.)
Boiling Point110ºC(lit.)
Density0.912 g/mL at 25ºC
Flash Point4.4 °C
Exact Mass97.09400
LogP1.99500
Vapor Pressure27.7mmHg at 25°C
Refractive Indexn20/D 1.495(lit.)

GHS Safety & Compliance

Flammable / Irritant / Health Hazard / Environmental HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H304
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H336 — May cause drowsiness or dizziness
  • H373 — May cause damage to organs through prolonged exposure
  • H411 — Toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of Toluene-2,3,4,5,6-d5?

The CAS number of Toluene-2,3,4,5,6-d5 is 1603-99-2.

What are the molecular formula and molecular weight of Toluene-2,3,4,5,6-d5?

Toluene-2,3,4,5,6-d5 has molecular formula C7H3D5 and molecular weight 97.16920 g/mol.

Is Toluene-2,3,4,5,6-d5 hazardous?

Toluene-2,3,4,5,6-d5 has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H304; H315 — Causes skin irritation.

What are the upstream and downstream products of Toluene-2,3,4,5,6-d5?

For Toluene-2,3,4,5,6-d5, Upstream Products: Carbon dioxide, Benzene-d6, Triethylsilane; Downstream Products: Benzoic acid-2,3,4,5,6-d5, Benzyl-2,3,4,5,6-d5 bromide, 2,4-Dinitrotoluene-d3.

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

Last updated:

How to cite: Jingsj. "Toluene-2,3,4,5,6-d5 (CAS 1603-99-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34824-3 (accessed 2026-11-09).

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