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ChemicalBook--->CAS DataBase List--->25134-21-8

25134-21-8

25134-21-8 Structure

25134-21-8 Structure
IdentificationMore
[Name]

Methyl-5-norbornene-2,3-dicarboxylic anhydride
[CAS]

25134-21-8
[Synonyms]

EPON HARDENER MNA
EPON(R) MNA SUBSTITUTE
EPOXY EMBEDDING MEDIUM, HARDENER MNA
METHENDIC ANHYDRIDE
METHYL-3,6-ENDOMETHYLENETETRAHYDROPHTHALIC ANHYDRIDE
METHYL-5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE
METHYLBICYCLO[2.2.1]HEPT-5-ENE-2,3-DICARBOXYLIC ANHYDRIDE
METHYL NADIC ANHYDRIDE
METHYLNORBORNENE-2,3-DICARBOXYLIC ACID ANHYDRIDE
METHYLNORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE
MNA
NADIC METHYL ANHYDRIDE
NADIC(R) METHYL ANHYDRIDE
NADIC(TM) METHYL ANHYDRIDE
NMA
,7-methanoisobenzofuran-1,3-dione,3a,4,7,7a-tetrahydromethyl-
3-dione,3a,4,7,7a-tetrahydromethyl-7-methanoisobenzofuran-1
4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydromethyl-, (3aalpha,4alpha,7alpha,7aalpha)-
4,7-methanoisobenzofuran-1,3-dione,3a,4,7,7a-tetrahydromethyl-,(3aalpha,4al
5-Norbornene-2,3-dicarboxylic anhydride, methyl-
[EINECS(EC#)]

246-644-8
[Molecular Formula]

C10H10O3
[MDL Number]

MFCD00167036
[Molecular Weight]

178.18
[MOL File]

25134-21-8.mol
Chemical PropertiesBack Directory
[Appearance]

clear light yellow oily liquid
[Boiling point ]

140°C (10 mmHg)
[density ]

1.232 g/mL at 25 °C(lit.)
[vapor density ]

6.1 (20 °C, vs air)
[vapor pressure ]

5 mm Hg ( 120 °C)
[refractive index ]

n20/D 1.506(lit.)
[Fp ]

>230 °F
[storage temp. ]

room temp
[solubility ]

Miscible with acetone, benzene, naphtha and xylene.
[form ]

Oily Liquid
[pka]

4.42[at 20 ℃]
[color ]

Clear light yellow
[Water Solubility ]

REACTS
[Sensitive ]

Moisture Sensitive
[BRN ]

162395
[CAS DataBase Reference]

25134-21-8(CAS DataBase Reference)
[NIST Chemistry Reference]

4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydromethyl-(25134-21-8)
[Storage Precautions]

Moisture sensitive
[EPA Substance Registry System]

25134-21-8(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xn,C
[Risk Statements ]

R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R42:May cause sensitization by inhalation.
R34:Causes burns.
[Safety Statements ]

S39:Wear eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
[RIDADR ]

UN 3265 8/PG 2
[WGK Germany ]

3
[RTECS ]

RB9100000
[TSCA ]

Yes
[HazardClass ]

6.1
[PackingGroup ]

III
[HS Code ]

29172000
[Hazardous Substances Data]

25134-21-8(Hazardous Substances Data)
[Toxicity]

LD50 oral in rat: 914mg/kg
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Diethyl ether-->Benzene-->Hexane-->Lithium Aluminum Hydride-->p-Toluenesulfonic acid-->Maleic anhydride-->Dicyclopentadiene-->METHYLCYCLOPENTADIENE DIMER-->2-methylcyclopentenone
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Methyl-5-norbornene-2,3-dicarboxylic anhydride(25134-21-8).msds
Hazard InformationBack Directory
[Chemical Properties]

clear light yellow oily liquid
[Uses]

Methyl-5-norbornene-2,3-dicarboxylic anhydride is used as a curing agent in epoxy resins and in the preparation of vertically aligned and penetrated carbon nanotube/polymer film. It serves as an intermediate in polyesters, alkyd resins and plasticizers. It is also used in electrical laminating and filament-winding. Further, it is used in the preparation of methyl nadimides endcapped resins based on tris(3-aminophenyl)phosphine oxide. It is utilized in the flame retarding treatment.
[General Description]

additional information see 45359 Epoxy Embedding Medium kit
[Flammability and Explosibility]

Nonflammable
[Purification Methods]

Purify the anhydride by thin layer chromatography on Al2O3 (previously boiled in EtOAc) and eluted with hexane/*C6H6 (1:2) then recrystallise it from *C6H6/hexane. The free acid has m 118.5-119.5o. [Miranov et al. Tetrahedron 19 1939 1963, Beilstein 17/11 V 199.]
Spectrum DetailBack Directory
[Spectrum Detail]

Methyl-5-norbornene-2,3-dicarboxylic anhydride(25134-21-8)MS
Methyl-5-norbornene-2,3-dicarboxylic anhydride(25134-21-8)1HNMR
Methyl-5-norbornene-2,3-dicarboxylic anhydride(25134-21-8)IR1
Methyl-5-norbornene-2,3-dicarboxylic anhydride(25134-21-8)IR2
Methyl-5-norbornene-2,3-dicarboxylic anhydride(25134-21-8)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Methyl-5-norbornene-2,3-dicarboxylic anhydride, mixture of isomers, 95%(25134-21-8)
[Alfa Aesar]

Methyl-5-norbornene-2,3-dicarboxylic anhydride, mixture of isomers, tech.(25134-21-8)
[Sigma Aldrich]

25134-21-8(sigmaaldrich)
[TCI AMERICA]

Methyl-5-norbornene-2,3-dicarboxylic Anhydride,>80.0%(GC)(25134-21-8)
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