Desacetyl Cephapirin Sodium Salt

Blue Ice

403, 41

Pale yellow to brown solid

A metabolite of Cephapirin in bovine milk. Desacetyl cefapirin is an active metabolite of the cephalosporin antibiotic cefapirin.1 Desacetyl cefapirin is active against E. coli, K. pneumoniae, P. mirabilis, and S. aureus with MIC values of 120, 24, 34, and 0.42ug/ml, respectively.

Synonyms:
(6R, 7R)-3-(Hydroxymethyl)-8-oxo-7-[[2-(4-pyridinylthio)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Sodium Salt; Deacetylcephapirin Sodium Salt; (6R-trans)-3-(Hydroxymethyl)-8-oxo-7-[[(4-pyridinylthio)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Sodium Salt

CAS No:
104557-24-6
Free Acid: 38115-21-8

Molecular Formula:
C15H14N3NaO5S2

Molecular Weight:
403.41

Appearance:
Pale yellow to brown solid

Purity:
≥95%

Identity (1H NMR):
Conforms to structure

Melting Point:
>157°C (dec.)

Solubility:
DMSO (Slightly), Methanol (Slightly, Heated), Water (Slightly, Heated)

Storage and Stability:
May be stored at RT for short-term only. Long-term storage is recommended at -20°C. Hygroscopic. Under inert atmosphere. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Store under inert atmosphere.