Agent Name

Methyl nadic anhydride

CAS Number

25134-21-8

Formula

C10-H10-O3

Major Category

Plastics & Rubber

Synonyms

4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydromethyl-; 5-Norbornene-2,3-dicarboxylic anhydride, methyl-; Epicure NMA; Hardener HY906; Kayahard MCD; MEA 610; Methendic anhydride; Methyl-1,2,3,6-tetrahydro-3,6-endomethylenephthalic anhydride; Methyl-5-norbornene-2,3-dicarboxylic anhydride; Methyl-tetrahydro-3,6-endomethylenephthalic anhydride; Methylbicyclo(2.2.1)heptene-2,3-dicarboxylic anhydride; Methylendic anhydride; Methylnorbornene-2,3-dicarboxylic anhydride; NMA; Nadic methyl anhydride; TK 10 524; XMNA; endo-Methylenemethyltetrahydrophthalic anhydride; [ChemIDplus]

Category

Acid Anhydrides, Cyclic

Description

Colorless to light yellow liquid; [HSDB] Colorless liquid; [MSDSonline]

Sources/Uses

Used as a curing agent (epoxy resins), an intermediate (polyesters, alkyd resins, and plasticizers), and in electrical laminating and filament-winding; [HSDB]

Comments

A skin and eye irritant; May cause respiratory sensitization; [eChemPortal: ERMA] An irritant; Inhalation may cause respiratory sensitization; [MSDSonline] See "ACID ANHYDRIDES."

Exposure Assessment
Vapor Pressure

0.1 mm Hg

Lethal Concentration

LCLo (rat) = 750 mg/m3/4h

Adverse Effects
Asthma

Yes

Links to Other NLM Databases
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Processes

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