ChemicalBook--->CAS DataBase List--->616-02-4

616-02-4

616-02-4 Structure

616-02-4 Structure
IdentificationMore
[Name]

Citraconic anhydride
[CAS]

616-02-4
[Synonyms]

2-METHYLMALEIC ANHYDRIDE
CITRACONIC ANHYDRIDE
CTA
METHYLMALEIC ANHYDRIDE
2,5-Furanedione, 3-methyl
3-Methyl-2,5-furandione
3-methyl-5-furandione
3-methyl-furan-2,5-dione
3-Methylmaleic anhydride
3-methylmaleicanhydride
alpha-Methylmaleic anhydride
alpha-methylmaleicanhydride
Anhydrid kyseliny citrakonove
anhydridkyselinycitrakonove
Citraconic acid anhydride
citraconicacidanhydride
Maleic anhydride, methyl-
methyl-maleicacidanhydride
methyl-maleicanhydrid
Monomethylmaleic anhydride
[EINECS(EC#)]

210-459-0
[Molecular Formula]

C5H4O3
[MDL Number]

MFCD00005522
[Molecular Weight]

112.08
[MOL File]

616-02-4.mol
Chemical PropertiesBack Directory
[Appearance]

clear colorless to very slightly yellow liquid
[Melting point ]

6-10 °C (lit.)
[Boiling point ]

213-214 °C (lit.)
[density ]

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

4 (vs air)
[refractive index ]

n20/D 1.471(lit.)
[Fp ]

215 °F
[storage temp. ]

Store at RT.
[solubility ]

Decomposes in contact with water,Insoluble[in water]
[form ]

Liquid
[color ]

Clear colorless to very slightly yellow
[Water Solubility ]

decomposes
[Sensitive ]

Moisture Sensitive
[BRN ]

1835
[Uses]

Reagent for alkalies, alcohols, and amines.
[CAS DataBase Reference]

616-02-4(CAS DataBase Reference)
[NIST Chemistry Reference]

2,5-Furandione, 3-methyl-(616-02-4)
[EPA Substance Registry System]

616-02-4(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

T
[Risk Statements ]

R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
R42/43:May cause sensitization by inhalation and skin contact .
R34:Causes burns.
R24:Toxic in contact with skin.
[Safety Statements ]

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

UN 2810 6.1/PG 3
[WGK Germany ]

3
[RTECS ]

GE6825000
[F ]

10-21
[TSCA ]

Yes
[HazardClass ]

6.1
[PackingGroup ]

III
[HS Code ]

29171990
[Hazardous Substances Data]

616-02-4(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

NA-->Mesaconic acid-->METHYLSUCCINIC ANHYDRIDE-->3-METHYL-3-BUTEN-1-OL-->Itaconic anhydride-->Pyruvic acid-->Itaconic acid
[Preparation Products]

DIMETHYL METHYLSUCCINATE-->Citraconic acid-->3,6-Dichloro-4-methylpyridazine-->MONO-METHYL SUCCINATE-->Succinic anhydride-->5-hydroxy-3-Methyl-2(5H)-furanone-->3-METHYL-2(5H)-FURANONE-->4-METHYL-2(5H)-FURANONE
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2-Methylmaleic anhydride(616-02-4).msds
Hazard InformationBack Directory
[Chemical Properties]

clear colorless to very slightly yellow liquid
[Flammability and Explosibility]

Nonflammable(100%)
[Purification Methods]

Possible contamination is from the acid formed by hydrolysis. If the IR has OH bands, then reflux with Ac2O for 30minutes, evaporate, then distil the residue in a vacuum, otherwise distil in a vacuum. Store in a dry atmosphere. [Vaughan & Andersen J Am Chem Soc 77 6702 1955, Vaughan & Andersen J Org Chem 21 680 1956, Beilstein 17 H 440, 17 I 234, 17 II 448, 17 III/IV 5912, 17/11 V 65.]
Spectrum DetailBack Directory
[Spectrum Detail]

Citraconic anhydride(616-02-4)MS
Citraconic anhydride(616-02-4)1HNMR
Citraconic anhydride(616-02-4)13CNMR
Citraconic anhydride(616-02-4)IR1
Citraconic anhydride(616-02-4)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Citraconic anhydride, 98%(616-02-4)
[Alfa Aesar]

Citraconic anhydride, 98%(616-02-4)
[Sigma Aldrich]

616-02-4(sigmaaldrich)
[TCI AMERICA]

Citraconic Anhydride,>98.0%(T)(616-02-4)
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