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1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride

Also known as: 1,3-dioxo-1H,3H-naphtho[1,8-cd]pyran-6,7-dicarboxylic acid, 1,3-dioxo-1H,3H-benzo[de]isochromene-6,7-dicarboxylic acid, 1,4,5,8-naphthalenediacid monoanhydride, 1,4,5,8-naphthalenetetracarboxylic acid monoanhydride, 1H,3H-naphtho[1,8-cd]pyran-6,7-dicarboxylic acid, 1,3-dioxo-, 1,3-dioxo-1,3-dihydrobenzo[de]isochromene-6,7-dicarboxylic acid, monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid

1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride (CAS 52671-72-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H6O7 and a molecular weight of 286.19300 g/mol. Key properties include a melting point of >300ºC, a boiling point of 692.8ºC at 760 mmHg and a density of 1.769. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation and H400 — Very toxic to aquatic life. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
52671-72-4
Jingsj CID
J-1045908-2
Molecular Formula
C14H6O7
Molecular Weight
286.19300 g/mol
Category
Organic Acids
Last updated
11/3/2026
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Physicochemical Properties

Melting Point>300ºC
Boiling Point692.8ºC at 760 mmHg
Density1.769
Exact Mass286.01100
PSA117.97000
LogP1.54680
Refractive Index1.772

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H319 — Causes serious eye irritation
  • H400 — Very toxic to aquatic life

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride?

The CAS number of 1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride is 52671-72-4.

What are the molecular formula and molecular weight of 1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride?

1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride has molecular formula C14H6O7 and molecular weight 286.19300 g/mol.

Is 1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride hazardous?

1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation; H400 — Very toxic to aquatic life.

What are the upstream and downstream products of 1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride?

For 1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride, Upstream Products: 1,4,5,8-Naphthalenetetracarboxylic acid, 1,4,5,8-Naphthalenetetracarboxylic dianhydride; Downstream Products: 1,4,5,8-Naphthalenetetracarboxylic dianhydride.

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

Last updated:

How to cite: Jingsj. "1,4,5,8-Naphthalenetetracarboxylic acid 1,8-monoanhydride (CAS 52671-72-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1045908-2 (accessed 2026-11-09).

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