O-Phthalaldehyde

Independent reference data for O-Phthalaldehyde (CAS 643-79-8), compiled from public chemistry databases.

Registry identifiers across databases

Computed descriptors

Physicochemical values on record

Documented uses on record

Used as a disinfectant and in the fluorometric determination of primary amines and thiols; [Merck Index] Used to sterilize medical and dental equipment, as an enzyme inhibitor, indicator, chemical intermediate, diagnostic agent, tanning agent for leather, in water treatment, pulp and paper manufacturing, oil field water flooding, hair colorings, wood treatment, and antifouling paints; [NTP]Petroleum Production and Refining [Category: Industry]

Synonyms and trade names

o-Phthalaldehyde; 643-79-8; PHTHALALDEHYDE; o-Phthaldialdehyde; 1,2-Benzenedicarboxaldehyde; Phthalic aldehyde; ortho-Phthalaldehyde; benzene-1,2-dicarbaldehyde; Phthalic dialdehyde; Phthalic dicarboxaldehyde; Phthalyldicarboxaldehyde; Phthalaldialdehyde; ortho Phthalaldehyde; o-Phthalicdicarboxaldehyde; 1,2-Diformylbenzene; phtharal

GHS hazard classification

Reported hazard statements	H228 (44.3%), H301 (97.9%), H314 (74%), H315 (26%), H317 (97.4%), H318 (73.6%), H335 (28.1%), H373 (44.3%)

H228 (44.3%): Flammable solid [Danger Flammable solids]

H301 (97.9%): Toxic if swallowed [Danger Acute toxicity, oral]

What the public record says

1,2-Phthalic dicarboxaldehyde · CAS 643-79-8 · C8H6O2. UNII 4P8QP9768A. Boiling Point: BP: 83 °C at 0.8 mm Hg; Melting Point: 55.8 °C; Flash Point: 132 °C (270 °F) - closed cup.

Physical description and handling notes

Source: PubChem / Wikidata; the batch COA governs where values differ.