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B22864 3-Methylphthalic anhydride, 96%

CAS Number
3-Methylbenzene-1,2-dicarboxylic anhydride

Stock No. Size Price ($) Quantity Availability
B22864-03 1g 57.70
B22864-06 5g 143.00
B22864-14 25g 424.00
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3-Methylphthalic anhydride, 96%


Chemical Properties

Formula Weight
Melting point
Storage & Sensitivity
Moisture Sensitive. Ambient temperatures.
Reacts with water.


3-Methylphthalic anhydride can react with Methylamine hydrochloride to get 2,3-Dihydro-2,4-dimethyl-1H-isoindole-1,3-dione.


Moisture sensitive. Store under dry inert gas. Store away from oxidizing agents, water/ moisture.

Literature References

Melvin S. Newman; Ving Lee. Improved synthesis of 3-methylphthalic anhydride. J. Org. Chem. 1977, 42 (8), 1478-1479.

Norman Rabjohn; H. H. Farmer. The Reaction of Methanol with 3-Methylphthalic Anhydride. J. Am. Chem. Soc. 1955, 77, (3), 760-761.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H315-H317-H318-H334-H335-H500

Harmful if swallowed. Causes skin irritation. May cause an allergic skin reaction. Causes serious eye damage. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause respiratory irritation. May form combustible dust concentrations in air

Precautionary Statements: P261-P264b-P270-P271-P272-P280-P285-P301+P312-P302+P352-P304+P340-P305+P351+P338-P310-P330-P333+P313-P342+P311-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. Contaminated work clothing should not be allowed out of the workplace. Wear protective gloves/protective clothing/eye protection/face protection. In case of inadequate ventilation wear respiratory 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. Immediately call a POISON CENTER or doctor/physician. Rinse mouth. If skin irritation or rash occurs: Get medical advice/attention. If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician. Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

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