7081-44-9

Name Cloxacillin sodium
CAS 7081-44-9
EINECS(EC#) 211-390-9
Molecular Formula C19H19ClN3NaO6S
MDL Number MFCD00150735
Molecular Weight 475.88
MOL File 7081-44-9.mol
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Chemical Properties

Appearance White or almost white, hygroscopic, crystalline powder.
Melting point  170℃
Boiling point  689℃
Fp  >110°(230°F)
storage temp.  2-8°C
solubility  H2O: soluble50mg/mL
form  solid
color  White to Orange to Green
Water Solubility  Soluble in water
Merck  13,2444
BRN  5403885
Major Application clinical testing
Contact allergens
Cloxacillin is a semisynthetic penicillin close to oxacillin. It induced contact dermatitis in a pharmaceutical factory worker with positive reactions to ampicillin, but not to penicillin. In cutaneous drug reactions such as acute generalized exanthematous pustulosis due to amoxicillin, cross-reactivity is frequent to cloxacillin (personal observations).
InChIKey MUYUWQFVGNJMPH-UHFFFAOYSA-M
SMILES [Na+].N12C(C(NC(C3=C(C)OCN3C3=CC=CC=C3Cl)=O)C1=O)SC(C)(C)C2C([O-])=O.[H]O[H]
CAS DataBase Reference 7081-44-9(CAS DataBase Reference)

Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)Health Hazard (GHS08)
GHS07,GHS08
Signal word  Danger
Hazard statements  H315-H317-H319-H334-H335
Precautionary statements  P261-P280-P284-P304+P340-P305+P351+P338-P342+P311
Hazard Codes  Xn
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R42/43:May cause sensitization by inhalation and skin contact .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
WGK Germany  2
RTECS  XH8920000
HS Code  29411099
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Resp. Sens. 1
Skin Irrit. 2
Skin Sens. 1
STOT SE 3
Safety Profile
Moderately toxic by intraperitoneal, intramuscular, subcutaneous, and intravenous routes. Mildly toxic by ingestion. When heated to decomposition it emits very toxic fumes of Cl-, NOx, Na2O, and SOx.

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