1,4,5,8-Naphthalenetetracarboxylic dianhydride

Also known as: 1,4,5,8-Naphthalenetetracarboxylic acid dianhydride, Naphthalene-1,4,5,8-tetracarboxylic dianhydride, Naphthalenetetracarboxylic dianhydride, NTCDA, Isochromeno[6,5,4-def]isochromene-1,3,6,8-tetrone, [2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8-tetrone, Naphtho[1,8-cd:4,5-c'd']dipyran-1,3,6,8-tetrone, MFCD00006915, EINECS 201-342-5, UNII:L56XQD1V6Y, QK3695000

1,4,5,8-Naphthalenetetracarboxylic dianhydride (CAS 81-30-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H4O6 and a molecular weight of 268.178 g/mol. Key properties include a melting point of >300 °C(lit.), a boiling point of 617.0±38.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 280.4±26.8 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.

81-30-1

Jingsj CID

J-45722-7

Molecular Formula

C₁₄H₄O₆

Molecular Weight

268.178 g/mol

Category

Organic Acids

Last updated

11/3/2026