4-Methoxyphthalonitrile

Also known as: 4-methoxybenzene-1,2-dicarbonitrile, 4-methoxyphthalodinitrile, 1,2-benzenedicarbonitrile, 4-methoxy-

4-Methoxyphthalonitrile (CAS 80323-72-4) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H6N2O and a molecular weight of 158.15700 g/mol. Key properties include a melting point of 205-209ºC(lit.), a boiling point of 317.6ºC at 760 mmHg, a density of 1.19g/cm3 and a flash point of 137.4ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 80323-72-4
Jingsj CID: J-12516-5
Molecular Formula: C₉H₆N₂O
Molecular Weight: 158.15700 g/mol
Category: Nitrogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	205-209ºC(lit.)
Boiling Point	317.6ºC at 760 mmHg
Density	1.19g/cm3
Flash Point	137.4ºC
Exact Mass	158.04800
PSA	56.81000
LogP	1.43856
Refractive Index	1.55

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H312 — Harmful in contact with skin
H332 — Harmful if inhaled

Frequently Asked Questions

What is the CAS number of 4-Methoxyphthalonitrile?

The CAS number of 4-Methoxyphthalonitrile is 80323-72-4.

What are the molecular formula and molecular weight of 4-Methoxyphthalonitrile?

4-Methoxyphthalonitrile has molecular formula C9H6N2O and molecular weight 158.15700 g/mol.

Is 4-Methoxyphthalonitrile hazardous?

4-Methoxyphthalonitrile has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of 4-Methoxyphthalonitrile?

For 4-Methoxyphthalonitrile, Upstream Products: Methanol, 4-Nitrophthalonitrile, Zinc cyanide.

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. "4-Methoxyphthalonitrile (CAS 80323-72-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12516-5 (accessed 2026-11-06).

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