Iothalamic Acid
Title: Iothalamic Acid
CAS Registry Number: 2276-90-6
CAS Name: 3-(Acetylamino)-2,4,6-triiodo-5-[(methylamino)carbonyl]benzoic acid
Additional Names: 5-acetamido-2,4,6-triiodo-N-methylisophthalamic acid
Molecular Formula: C11H9I3N2O4
Molecular Weight: 613.91
Percent Composition: C 21.52%, H 1.48%, I 62.01%, N 4.56%, O 10.42%
Literature References: Synthesis: Hoey et al., J. Med. Chem. 6, 24 (1963).
Properties: Crystals, dec about 285°.
 
Derivative Type: N-Methylglucamine salt
CAS Registry Number: 13087-53-1
Additional Names: Meglumine iothalamate
Trademarks: Conray (Mallinckrodt); Contrix "28"; Cysto-Conray (Mallinckrodt)
Molecular Formula: C18H26I3N3O9
Molecular Weight: 809.13
Percent Composition: C 26.72%, H 3.24%, I 47.05%, N 5.19%, O 17.80%
 
Derivative Type: Sodium salt
CAS Registry Number: 1225-20-3
Additional Names: Sodium iothalamate
Trademarks: Angio-Conray (Mallinckrodt); Angio-Contrix "48"; Conray-400 (Mallinckrodt); Medio-Contrix "38"
Molecular Formula: C11H8I3N2NaO4
Molecular Weight: 635.90
Percent Composition: C 20.78%, H 1.27%, I 59.87%, N 4.41%, Na 3.62%, O 10.06%
 
Derivative Type: 131I-Labeled sodium salt
CAS Registry Number: 15845-98-4
Trademarks: Glofil-131 (Abbott)
 
Therap-Cat: Diagnostic aid (radiopaque medium).
Keywords: Diagnostic Aid (Radiopaque Medium).

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