Cloxacillin Sodium

compacted, oral

Molecular formula:
C19H17ClN3O5S.Na.H2O
Molecular weight:
475.9
CAS registry no.:
7081-44-9
Cloxacillin Sodium

Application

Dry granules with a high bulk density suitable for filling hard gelatine capsules.

Antibiotic category

Semisynthetic penicillin for oral use

Packaging

Storage

Store below 25°C,
Protect from light and moisture

Shelf life

48 months

Specification

Appearancewhite or almost white, crystalline powder
Solubilityfreely soluble in water
Specific optical rotation+160° to +169° 1)
Absorbance
(430nm; Ph.Eur.)
not more than 0.040
Bulk density0.60 g/ml - 0.75 g/ml
Tapped densityinformative g/ml
Water content
(Karl Fischer)
3.0 - 4.5 %
Clarity of solution
( Ph.Eur.)
clear
pH-value5.0 - 7.0
2-Ethylhexanoic acidnot more than 0.5 %
Related substances
(HPLC)
individual: not more than 1.0 %
total: not more than 5.0%
AssayCloxacillin Sodium (HPLC):
95.0 - 102.0 % 1)
950 - 1020 µg/mg 1)
1) Based on the anhydrous substance

Remark

N,N-Dimethylaniline and dichloromethane are not used in the manufacturing process

Pharmacopoeial quality

USP, BP, Ph.Eur.