Title:  Oxantel 
CAS Registry Number:  36531-26-7 
CAS Name:  (E)-3-[2-(1,4,5,6-Tetrahydro-1-methyl-2-pyrimidinyl)ethenyl]phenol 
Additional Names:  (E)-m-[2-(1,4,5,6-tetrahydro-1-methyl-2-pyrimidinyl)vinyl]phenol;  1-methyl-1,4,5,6-tetrahydro-2-[2-(3-hydroxyphenyl)vinyl]pyrimidine 
Manufacturers' Codes:  CP-14445 
Molecular Formula:  C13H16N2O 
Molecular Weight:  216.28 
Percent Composition:  C 72.19%, H 7.46%, N 12.95%, O 7.40% 
Literature References:  Analog of pyrantel, q.v., with activity vs whipworms (Trichuris spp.).  Prepn:  J. W. Mc Farland, ZA 6804589 corresp to US 3579510 and US 3708584 (1968, 1971, 1973 all to Pfizer).  Synthesis and evaluation in whipworm control:  J. W. Mc Farland, H. L. Howes J. Med. Chem. 15, 365 (1972).  Evaluation vs Trichuris in dogs:  H. L. Howes, Proc. Soc. Exp. Biol. Med. 139, 394 (1972).  Efficacy vs T. trichiuris in humans:  E. L. Lee et al., Am. J. Trop. Med. Hyg. 25, 563 (1976); vs T. suis in swine:  M. Robinson, Vet. Parasitol. 5, 223 (1979).  Anthelmintic effects of combination with pyrantel pamoate:  B. Sinniah, D. Sinniah, Ann. Trop. Med. Parasitol. 75, 315 (1981). 
  
Derivative Type:  Hydrochloride  
Molecular Formula:  C13H16N2O.HCl 
Molecular Weight:  252.74 
Percent Composition:  C 61.78%, H 6.78%, N 11.08%, O 6.33%, Cl 14.03% 
Properties:  Crystals from ethanol, mp 207-208°.  uv max (water):  231, 274 nm (e 12700, 20100). 
Melting point:  mp 207-208° 
Absorption maximum:  uv max (water):  231, 274 nm (e 12700, 20100) 
  
Derivative Type:  Pamoate  
CAS Registry Number:  68813-55-8 
Additional Names:  Oxantel embonate 
Manufacturers' Codes:  CP-14445-16 
Trademarks:  Telopar (Pfizer) 
Molecular Formula:  C13H16N2O.C23H16O6 
Molecular Weight:  604.65 
Percent Composition:  C 71.51%, H 5.33%, N 4.63%, O 18.52% 
  
Derivative Type:  Mixture with pyrantel pamoate (1:1) see Pyrantel 
  
Therap-Cat:  Anthelmintic (Nematodes). 
Therap-Cat-Vet:  Anthelmintic (Nematodes). 
Keywords:  Anthelmintic (Nematodes).   |