Title:  Traumatic Acid 
CAS Registry Number:  6402-36-4 
CAS Name:  2-Dodecenedioic acid 
Additional Names:  1-decene-1,10-dicarboxylic acid 
Molecular Formula:  C12H20O4 
Molecular Weight:  228.28 
Percent Composition:  C 63.14%, H 8.83%, O 28.03% 
Literature References:  A wound hormone of plants.  Isoln from pods of green beans:  English et al., Proc. Natl. Acad. Sci. USA 25, 323 (1939).  The naturally occurring traumatic acid is the trans-form.  Synthesis of the trans-form:  eidem, J. Am. Chem. Soc. 61, 3434 (1939); US 2339259 (1944); US 2391824 (1945); Truscheit, Eiter, Ann. 658, 86 (1962); Dolezal, Collect. Czech. Chem. Commun. 35, 1932 (1970); Schreurs et al., Recl. Trav. Chim. Pays-Bas Belg. 90, 1331 (1971); Prakasa Rao, Nayak, Synthesis 1975, 608; J. H. Babler, R. K. Moy, Synth. Commun. 9, 669 (1979).  Synthesis of the cis-form:  Lauer, Gensler, J. Am. Chem. Soc. 67, 1171 (1945). 
  
Derivative Type:  trans-Form  
Properties:  Crystals from alc, acetone, or 1,2-dimethoxyethane, mp 166-167°.  bp0.001 150-160°.  Very sparingly sol in water; sol in alc, ether, benzene, chloroform. 
Melting point:  mp 166-167° 
Boiling point:  bp0.001 150-160° 
  
Derivative Type:  cis-Form  
Properties:  Crystals from ethyl acetate and petr ether, mp 67-68°. 
Melting point:  mp 67-68° 
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