| Identification | More | [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 Properties | Back 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 | [Dielectric constant]
40.3（20℃） | [LogP]
-0.232 (est) | [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 Data | Back 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) |
| Hazard Information | Back 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.] |
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