Title: Cefamandole
CAS Registry Number: 34444-01-4
CAS Name: (6R,7R)-7-[[(2R)-Hydroxyphenylacetyl]amino]-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Additional Names: 7-mandelamido-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; 7-D-mandelamido-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-3-cephem-4-carboxylic acid; 7-D-mandelamido-3-(1-methyl-1,2,3,4-tetrazole-5-thiomethyl)-D3-cephem-4-carboxylic acid; CMT
Manufacturers' Codes: compd 83405
Molecular Formula: C18H18N6O5S2
Molecular Weight: 462.50
Percent Composition: C 46.74%, H 3.92%, N 18.17%, O 17.30%, S 13.87%
Literature References: Broad-spectrum semi-synthetic cephalosporin antibiotic. Prepn: C. W. Ryan, DE 2018600; idem, US 3641021 (1970, 1972 to Lilly); J. M. Greene, DE 2312997; idem, US 3840531 (1973, 1974 to Lilly). Biological properties: W. E. Wick, D. A. Preston, Antimicrob. Agents Chemother. 1, 221 (1972). Antibacterial activity: S. Eykyn et al., ibid. 3, 657 (1973); H. C. Neu, ibid. 6, 177 (1974); A. D. Russell, J. Antimicrob. Chemother. 1, 97 (1975). Pharmacologic studies: B. R. Meyers et al., Antimicrob. Agents Chemother. 9, 140 (1976); R. S. Griffith et al., ibid. 10, 814 (1976). Comprehensive description: R. H. Bishara, E. C. Rickard, Anal. Profiles Drug Subs. 9, 125-154 (1980).
Derivative Type: Nafate
CAS Registry Number: 42540-40-9
Trademarks: Bergacef (Bergamon); Cedol (Tiber); Cefam (Magis); Cefiran (Poli); Cemado (Francia); Cemandil (SIT); Fado (Errekappa); Kefadol (Lilly); Kefandol (Lilly); Lampomandol (AGIPS); Mandokef (Lilly); Mandol (Lilly); Mandolsan (San Carlo); Neocefal (Metapharma); Pavecef (IBP)
Molecular Formula: C19H17N6NaO6S2
Molecular Weight: 512.49
Percent Composition: C 44.53%, H 3.34%, N 16.40%, Na 4.49%, O 18.73%, S 12.51%
Properties: White, odorless needles, mp 190° (dec). uv max (H2O): 269 nm (e 10800). pKa 2.6-3.0. Sol in water, methanol. Practically insol in ether, chloroform, benzene, cyclohexane.
Melting point: mp 190° (dec)
pKa: pKa 2.6-3.0
Absorption maximum: uv max (H2O): 269 nm (e 10800)
Therap-Cat: Antibacterial.
Keywords: Antibacterial (Antibiotics); ?Lactams; Cephalosporins.
Cefatrizine Cefazedone Cefazolin Cefbuperazone Cefcapene Pivoxil

Systematic (IUPAC) name
5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Clinical data
Trade names former Mandol
AHFS/Drugs.com Micromedex Detailed Consumer Information
MedlinePlus a601206
Pregnancy cat. B1 (AU)
Legal status POM (UK) Discontinued (US)
Routes Intramuscular, intravenous
Pharmacokinetic data
Protein binding 75%
Half-life 48 minutes
Excretion Mostly renal, as unchanged drug
CAS number 34444-01-4 YesY 42540-40-9
ATC code J01DC03
PubChem CID 456255
DrugBank DB01326
ChemSpider 401748 YesY
KEGG D02344 YesY
Chemical data
Formula C18H18N6O5S2 
Mol. mass 462.505 g/mol
 YesY (what is this?)  (verify)

Cefamandole (INN, also known as cephamandole) is a second-generation broad-spectrum cephalosporin antibiotic. The clinically used form of cefamandole is the formate ester cefamandole nafate, a prodrug which is administered parenterally.

Cefamandole is no longer available in the United States.