5575-21-3

5575-21-3 structure

Name: Cephalonium
Chemical Name: (6R,7R)-3-[(4-carbamoylpyridin-1-ium-1-yl)methyl]-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
CAS Number: 5575-21-3
Molecular Formula: C₂₀H₁₈N₄O₅S₂
Molecular Weight: 458.51
Catalog: API Antibiotics Cephalosporin
Create Date: 2018-06-22 16:12:22
Modify Date: 2025-08-25 11:46:12
Cefalonium is the first-generation β-lactam cephalosporin antibiotic that is widely used to research bovine mastitis caused by Gram-positive bacteria including staphylococci[1][2][3].

Name	(6R,7R)-3-[(4-carbamoylpyridin-1-ium-1-yl)methyl]-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
Synonyms	Cephalonium Cefalonum Cefalonio [INN-Spanish] Cefalonium [INN-Latin] Cefalonium Hydrate CEFALONIUM EINECS 226-948-7

Description	Cefalonium is the first-generation β-lactam cephalosporin antibiotic that is widely used to research bovine mastitis caused by Gram-positive bacteria including staphylococci[1][2][3].
Related Catalog	Research Areas >> Infection Research Areas >> Inflammation/Immunology Signaling Pathways >> Anti-infection >> Bacterial
Target	β-lactam
References	[1]. Harada K, et, al. Assessment of the Usefulness of Cefapirin and Cefalonium Disks for Susceptibility Testing of Staphylococcus aureus Isolates from Bovine Mastitis. Antibiotics (Basel). 2020 Apr 21;9(4):197. [2]. Demon D, et, al. The intramammary efficacy of first generation cephalosporins against Staphylococcus aureus mastitis in mice. Vet Microbiol. 2012 Nov 9;160(1-2):141-50. [3]. Berry EA, et, al. Effect of an intramammary teat seal and dry cow antibiotic in relation to dry period length on postpartum mastitis. J Dairy Sci. 2007 Feb;90(2):760-5.

CHEMICAL NAME :: Pyridinium, 4-carbamoyl-1-((2-carboxy-8-oxo-7-(2-(2-thienyl)aceta mido)-5-thia-1-aza- bicyclo(4.2.0)oct-2-en-3-yl)methyl)- hydroxide, inner salt

WISWESSER LINE NOTATION :: T46 ANV ES GUTJ HVQ CMV1- BT5SJ& G1- AT6KJ DVZ &Q

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 18,185,1971

Hazard Codes	Xn