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A15538 Homophthalic anhydride, 97+%

CAS Number
o-Carboxyphenylacetic acid cyclic anhydride

Stock No. Size Price ($) Quantity Availability
A15538-09 10g 42.30
A15538-18 50g 170.00
A15538-30 250g 767.00
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Homophthalic anhydride, 97+%


Chemical Properties

Formula Weight
Melting point
Storage & Sensitivity
Moisture Sensitive. Ambient temperatures.
Decomposes in water.


It is used as a chemical and organic intermediates.


Moisture sensitive. Storage temperature 15 - 30°C. Store under inert gas. Store away from exposure to moisture, strong oxidizing agents, strong acids, strong bases.

Literature References

Niefang Yu; Line Bourel; Benoit Deprez; Jean-Claude Gesquiere. Lewis acid-induced reaction of homophthalic anhydride with imines: a convenient synthesis of trans-isoquinolonic acids. Tetrahedron Letters. 1998, 39 (8), 829-832.

Yasumitsu Tamura; Manabu Sasho; Kiyomi Nakagawa; Teruhisa Tsugoshi; Yasuyuki Kita. Strong base induced cycloaddition of homophthalic anhydrides leading to peri-hydroxy polycyclic compounds. J. Org. Chem. 1984, 49, (3), 473-478.

Can behave, in its tautomeric o-quinonoid form, as a diene in the Diels-Alder reaction, giving, e.g. with quinones, useful yields of functionalized linear polycyclic systems of potential applicability in anthracyclinone synthesis: Tetrahedron Lett., 22, 4283 (1981); J. Org. Chem., 47, 4376 (1982):

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H315-H319-H335-H500

Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. May form combustible dust concentrations in air

Precautionary Statements: P261-P264b-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P312-P330-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Rinse mouth. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

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