Title: Gadopentetic Acid
CAS Registry Number: 80529-93-7
CAS Name: [N,N-Bis[2-[bis(carboxymethyl)amino]ethyl]glycinato(5-)]gadolinate(2-) dihydrogen
Additional Names: N,N-bis[2-[bis(carboxymethyl)amino]ethyl]glycine gadolinium complex; gadolinium diethylenetriaminepentaacetic acid; Gd-DTPA
Molecular Formula: C14H20GdN3O10
Molecular Weight: 547.57
Percent Composition: C 30.71%, H 3.68%, Gd 28.72%, N 7.67%, O 29.22%
Literature References: Evaluation as water-soluble paramagnetic relaxation reagent (PARR) for NMR spectrometry: J. J. Dechter, G. C. Levy, J. Magn. Reson. 39, 207 (1980); and prepn: T. J. Wenzel et al., Anal. Chem. 54, 615 (1982). Use as diagnostic medium for NMR imaging: H. Gries et al., DE 3129906; eidem, US 4647447 (1983, 1987 both to Schering AG). Physicochemical properties: H. Gries, H. Miklautz, Physiol. Chem. Phys. Med. NMR 16, 105 (1984); E. Roux, L. De Broe, J. Belge Radiol. 71, 31 (1988). Evaluation as NMR contrast-enhancing agent in animals: R. C. Brasch et al., Am. J. Roentgenol. 142, 625 (1984). Pharmacokinetics and toxicity: H. J. Weinmann et al., ibid. 619; in humans: H. J. Weinmann et al., Physiol. Chem. Phys. Med. NMR 16, 167 (1984). HPLC determn: M. M. Vora et al., J. Chromatogr. 369, 187 (1986). Exptl use in imaging reperfused myocardium in dogs: S. Schaefer et al., J. Am. Coll. Cardiol. 12, 1064 (1988). Clinical studies of diagnostic use in brain imaging: R. Felix et al., Radiology 156, 681 (1985); J. P. Stack et al., Neuroradiology 30, 145 (1988). Safety and tolerance in humans: H. A. Goldstein et al., Radiology 174, 17 (1990). Reviews of diagnostic use in intracranial lesions: J. R. Hesselink, G. A. Press, Radiol. Clin. North Am. 26, 873-887 (1988); in spinal disease: G. Sze, ibid. 1009-1024.
Derivative Type: Dimeglumine salt
CAS Registry Number: 86050-77-3
Manufacturers' Codes: SHL-451A; ZK-93035
Trademarks: Magnevist (Schering AG)
Molecular Formula: C28H54GdN5O20
Molecular Weight: 938.00
Percent Composition: C 35.85%, H 5.80%, Gd 16.76%, N 7.47%, O 34.11%
Properties: Freely sol in water. LD50 i.v. in rats: 10 mmol/kg (Weinmann).
Toxicity data: LD50 i.v. in rats: 10 mmol/kg (Weinmann).
Therap-Cat: Diagnostic aid (MRI contrast agent).
Keywords: Diagnostic Aid (MRI Contrast Agent). |