Cephalexin hydrate

• Catalog No.: C4895
• CAS Number: 15686-71-2
• M. F.: C16H19N3O5S
• M. W.: 365.40416

SYNONYMS

• IUPAC name: (7R)-7-[(2R)-2-amino-2-phenylacetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid hydrate
• IUPAC Traditional name: (7R)-7-[(2R)-2-amino-2-phenylacetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid hydrate

DATABASE IDS

• PubChem SID: 24278316
• EC Number: 239-773-6
• CAS Number: 15686-71-2
• MDL Number: MFCD00167148
• Beilstein Number: 965503

PROPERTIES

• GHS Signal Word: Danger
• GHS Hazard statements: H317-H334
• European Hazard Symbols: Harmful (Xn)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Faceshields, Gloves
• GHS Precautionary statements: P261-P280-P342 + P311
• Risk Statements: 42/43
• Safety Statements: 22-36/37-45
• Storage Temperature: 2-8°C
• German water hazard class: 2

DETAILS

Description (English)

Application
Cephalexin is a cephalosporin antibiotic used to study the effect of expression, binding, and inhibition of PBP3 and other penicillin-binding proteins (PBPs) on bacterial cell wall mucopeptide synthesis.
Biochem/physiol Actions
Cephalexin disrupts the synthesis of the peptidoglycan layer of bacterial cell walls which is responsible for cell wall structural integrity. Peptidoglycan synthesis is facilitated by transpeptidases known as penicillin-binding proteins (PBPs). PBPs bind to the D-Ala-D-Ala at the end of muropeptides (peptidoglycan precursors) to crosslink the peptidoglycan. Cephalexin antibiotics mimic the D-Ala-D-Ala site, thereby competitively inhibiting PBP crosslinking of peptidoglycan.