dimethylmaleic anhydride

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Names

[ CAS No. ]:
766-39-2

[ Name ]:
dimethylmaleic anhydride

[Synonym ]:
3,4-dimethylmaleic acid anhydride
1-ethoxy-2-methyl-1-methylselanyl-propene
Dimethylketol
3,4-Dimethyl-2,5-furandione
dimethylmaleic anhydride
2,2'-dimethylmaleic anhydride
3-hydroxy-2-oxobutane
2,5-Furandione, 3,4-dimethyl-
2,3-dimethyl maleic anhydride
pyrocinchonic anhydride
2-hydroxybutan-3-one
3,4-dimethylfuran-2,5-dione
EINECS 212-165-8
dimethylketene O-ethyl Se-methyl selenoacetal
acetylmethylcarbino
acetyl methyl carbinol
2,3-Dimethylmaleic anhydride
MFCD00005523
2,3-dimethylfumaric anhydride

Chemical & Physical Properties

[ Density]:
1.2±0.1 g/cm3

[ Boiling Point ]:
223.0±0.0 °C at 760 mmHg

[ Melting Point ]:
93-96 °C(lit.)

[ Molecular Formula ]:
C6H6O3

[ Molecular Weight ]:
126.110

[ Flash Point ]:
95.6±15.9 °C

[ Exact Mass ]:
126.031693

[ PSA ]:
43.37000

[ LogP ]:
0.82

[ Vapour Pressure ]:
0.1±0.4 mmHg at 25°C

[ Index of Refraction ]:
1.487

[ Storage condition ]:
0-6°C

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
ON4025000
CHEMICAL NAME :
Maleic anhydride, dimethyl-
CAS REGISTRY NUMBER :
766-39-2
LAST UPDATED :
199701
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C6-H6-O3
MOLECULAR WEIGHT :
126.12
WISWESSER LINE NOTATION :
T5VOVJ D1 E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2600 mg/kg/65W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application
REFERENCE :
BJCAAI British Journal of Cancer. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants. RG21 2XS, UK) V.1- 1947- Volume(issue)/page/year: 19,392,1965

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H302-H319

[ Precautionary Statements ]:
P305 + P351 + P338

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xn:Harmful;

[ Risk Phrases ]:
R22

[ Safety Phrases ]:
S45-S36/37/39-S28A-S26

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ RTECS ]:
ON4025000

[ HS Code ]:
2917190090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 3,4-dimethyl-N-(2-pyridyl)maleinimid
  • Maleic anhydride
  • 2-Anilinopyridine
  • 3,4-dimethyl-1-(4-methylphenyl)pyrrole-2,5-dione
  • N-benzyl-5,5-dimethoxy-3,4-dimethyl-3-pyrrolin-2-one
  • dimethyl-fumaroyl chloride
  • Maleic acid
  • 2-Aminopyridine
  • Ethanol

DownStream

  • dimethyl 3,4-furandicarboxylate
  • 2-Butenedioic acid,2,3-dimethyl-, (2E)-
  • methylitaconic acid
  • Succinimide
  • 3,6-Dichloro-4,5-dimethylpyridazine
  • 9,10-Anthracenedione,1,4-dihydroxy-2,3-dimethyl-
  • DIETHYL3,4-FURANDICARBOXYLATE
  • Butanedioic acid,2,3-dimethyl-, (2R,3S)-rel-
  • DIBROMOACETIC ACID
  • 4,5-Dimethylpyridazine-3,6-diol

Customs

[ HS Code ]: 2917190090

[ Summary ]:
2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

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Related Compounds

  • dimethylmaleic anhydride
  • dimethylmaleic acid , disilver (I)-compound
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  • 2'-epi-Fumiquinazoline C
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