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766-39-2

Name 2,3-Dimethylmaleic anhydride
CAS 766-39-2
EINECS(EC#) 212-165-8
Molecular Formula C6H6O3
MDL Number MFCD00005523
Molecular Weight 126.11
MOL File 766-39-2.mol
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Chemical Properties

Appearance white to beige crystals or cryst. powder
Melting point  93-96 °C (lit.)
Boiling point  223 °C (lit.)
density  1.107 g/cm3 (100℃)
refractive index  1.5627 (estimate)
Fp  222-223°C
storage temp.  0-6°C
solubility  Chloroform (Slightly), Ethyl Acetate (Slightly)
form  Solid
color  White to Off-White
Water Solubility  Soluble in ethanol, ether and chloroform. Slightly soluble in water.
Sensitive  Moisture Sensitive
BRN  112044
LogP 0.183 (est)
CAS DataBase Reference 766-39-2(CAS DataBase Reference)
NIST Chemistry Reference 2,5-Furandione, 3,4-dimethyl-(766-39-2)
EPA Substance Registry System 766-39-2(EPA Substance)

Safety Data

Hazard Codes  Xn,Xi
Risk Statements 
R22:Harmful if swallowed.
Safety Statements 
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 .
WGK Germany  3
RTECS  ON4025000
F  9-21
TSCA  Yes
HS Code  29171900
Safety Profile
Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits acrid smoke and irritating fumes. See also ANHYDRIDES.
Hazardous Substances Data 766-39-2(Hazardous Substances Data)

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