541-59-3

Name Maleimide
CAS 541-59-3
EINECS(EC#) 208-787-4
Molecular Formula C4H3NO2
MDL Number MFCD00005494
Molecular Weight 97.07
MOL File 541-59-3.mol
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Chemical Properties

Appearance slight yellow crystalline powder
Melting point  91-93 °C (lit.)
Boiling point  97-103°C 5mm
density  1,2493 g/cm3
refractive index  1.4543 (estimate)
Fp  97-103°C/5mm
storage temp.  Inert atmosphere,Room Temperature
solubility  soluble in Methanol
form  Fine Crystalline Powder
pka 8.52±0.20(Predicted)
color  White to slightly yellow
Water Solubility  SOLUBLE
λmax 280nm(EtOH)(lit.)
BRN  106910
InChI 1S/C4H3NO2/c6-3-1-2-4(7)5-3/h1-2H,(H,5,6,7)
InChIKey PEEHTFAAVSWFBL-UHFFFAOYSA-N
SMILES O=C1NC(=O)C=C1
CAS DataBase Reference 541-59-3(CAS DataBase Reference)
NIST Chemistry Reference 1H-pyrrole-2,5-dione(541-59-3)
EPA Substance Registry System 541-59-3(EPA Substance)
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Safety Data

Symbol(GHS)  Corrosion (GHS05)Skull and Crossbones (GHS06)
GHS05,GHS06
Signal word  Danger
Hazard statements  H300-H314-H317
Precautionary statements  P260-P270-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  T,C
Risk Statements 
R25:Toxic if swallowed.
R34:Causes burns.
R43:May cause sensitization by skin contact.
R36/37/38:Irritating to eyes, respiratory system and skin .
R36:Irritating to the eyes.
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) .
S37/39:Wear suitable gloves and eye/face protection .
S7/9:Keep container tightly closed and in a well-ventilated place .
RIDADR  UN 2923 8/PG 2
WGK Germany  3
RTECS  ON4800000
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29251995
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 2 Oral
Eye Dam. 1
Skin Corr. 1B
Skin Sens. 1
Safety Profile
Poison by intraperitoneal and intravenous routes. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of NOx.

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Material Safety Data Sheet(MSDS)

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