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Name	Cloxacillin sodium	EINECS	211-390-9
CAS No.	7081-44-9	Density	N/A
PSA	136.54000	LogP	0.99210
Solubility	Soluble in water	Melting Point	170℃
Formula	C₁₉H₁₇ClN₃NaO₅S^.H₂O	Boiling Point	689.7 °C at 760 mmHg
Molecular Weight	475.885	Flash Point	370.9 °C
Transport Information	N/A	Appearance	N/A
Safety	26-36	Risk Codes	36/37/38-42/43
Molecular Structure		Hazard Symbols	Xn
Synonyms	4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid,6-[[[3-(2-chlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]-3,3-dimethyl-7-oxo-,monosodium salt, monohydrate, [2S-(2a,5a,6b)]-;3-(o-Chlorophenyl)-5-methyl-4-isoxazolyl penicillin sodium salt monohydrate;Cloxacillin sodium hydrate;Sodium6-[3-(o-Chlorophenyl)-5-methyl-4-isoxazolecarboxamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylatehydrate;Sodium cloxacillin monohydrate;4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid,6-[3-(o-chlorophenyl)-5-methyl-4-isoxazolecarboxamido]-3,3-dimethyl-7-oxo-,monosodium salt, monohydrate (8CI);4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[[3-(2-chlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]amino]-3,3-dimethyl-7-oxo-,monosodium salt, monohydrate, (2S,5R,6R)- (9CI);	Article Data	3

Cloxacillin sodium Synthetic route

: 3-(2'-chlorophenyl)-5-methyl-4-isoxazolyl chloride

: 7081-44-9
cloxacillin sodium salt monohydrate

Conditions

Conditions	Yield
	90%

: 149-57-5
2-Ethylhexanoic acid

: 23598-72-3
3-(2-chlorophenyl)-5-methyl-4-isoxazolecarboxylic acid

: sodium 2-ethylhexanoic acid

A: 7081-44-9
cloxacillin sodium salt monohydrate

B 6(3-(o-chlorophenyl)-5-methyl-4-isoxazolylcarboxyamido)penicillanic acid sodium salt: 6(3-(o-chlorophenyl)-5-methyl-4-isoxazolylcarboxyamido)penicillanic acid sodium salt

Conditions

Conditions	Yield
With phosphorus pentachloride; triethylamine In hexane; dichloromethane; water; 4-methyl-2-pentanone	A 78.8% B n/a

Cloxacillin sodium Chemical Properties

Molecular Structure of Sodium cloxacillin monohydrate (CAS NO.7081-44-9):

IUPAC Name: sodium (2S,5R,6R)-6-[[3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate hydrate
Empirical Formula: C₁₉H₁₉ClN₃NaO₆S
Molecular Weight: 475.8784
ACD/LogP: 2.53
of Rule of 5 Violations: 0
ACD/LogD (pH 5.5): -0.52
ACD/LogD (pH 7.4): -1.2
ACD/BCF (pH 5.5): 1
ACD/BCF (pH 7.4): 1
ACD/KOC (pH 5.5): 1
ACD/KOC (pH 7.4): 1
H bond acceptors: 8
H bond donors: 2
Freely Rotating Bonds: 4
Storage temp: 2-8°C
Merck: 13,2444
Polar Surface Area: 129.25 Å²
Flash Point: 370.9 °C
Enthalpy of Vaporization: 106.17 kJ/mol
Boiling Point: 689.7 °C at 760 mmHg
Vapour Pressure: 5.65E-20 mmHg at 25°C
Classification Code: Antibacterial; Drug / Therapeutic Agent
InChI
InChI=1/C19H18ClN3O5S.Na.H2O/c1-8-11(12(22-28-8)9-6-4-5-7-10(9)20)15(24)21-13-16(25)23-14(18(26)27)19(2,3)29-17(13)23;;/h4-7,13-14,17H,1-3H3,(H,21,24)(H,26,27);;1H2/q;+1;/p-1/t13-,14+,17-;;/m1../s1
Smiles
[Na+].N12[C@@H](C(=O)[O-])C(S[C@@H]2[C@@H](NC(c2c(c3c(cccc3)Cl)noc2C)=O)C1=O)(C)C.O

Cloxacillin sodium Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Source
mouse	LD50	intramuscular	1220mg/kg (1220mg/kg)	Drugs in Japan Vol. 6, Pg. 232, 1982.
mouse	LD50	intraperitoneal	1170mg/kg (1170mg/kg)	Drugs in Japan Vol. 6, Pg. 232, 1982.
mouse	LD50	intravenous	1100mg/kg (1100mg/kg)	Drugs in Japan Vol. 6, Pg. 232, 1982.
mouse	LD50	oral	5gm/kg (5000mg/kg)	Drugs in Japan Vol. 6, Pg. 232, 1982.
mouse	LD50	subcutaneous	3gm/kg (3000mg/kg)	Arzneimittel-Forschung. Drug Research. Vol. 15, Pg. 322, 1965.
rat	LD50	intramuscular	2600mg/kg (2600mg/kg)	Drugs in Japan Vol. 6, Pg. 232, 1982.
rat	LD50	intravenous	1660mg/kg (1660mg/kg)	Drugs in Japan Vol. 6, Pg. 232, 1982.
rat	LD50	oral	5gm/kg (5000mg/kg)	Drugs in Japan Vol. 6, Pg. 232, 1982.
rat	LD50	subcutaneous	4200mg/kg (4200mg/kg)	Drugs in Japan Vol. 6, Pg. 232, 1982.

Cloxacillin sodium Safety Profile

Hazard Codes: Harmful Xn
Risk Statements: 36/37/38-42/43
R36/37/38:Irritating to eyes, respiratory system and skin.
R42/43:May cause sensitization by inhalation and skin contact.
Safety Statements: 26-36
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

Cloxacillin sodium Specification

Sodium cloxacillin monohydrate , with CAS number of 7081-44-9, can be called Prostaphlin-A monohydrate ; Orbenin sodium hydrate ; Monosodium (2S,5R,6R)-6-(3-(o-chlorophenyl)-5-methyl-4-isoxazolecarboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate monohydrate ; Cloxacillin sodium monohydrate ; Cloxacillin sodium ; Cloxacillin nataarium-1-wasser ; Bactopen ; 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-(((3-(2-chlorophenyl)-5-methyl-4-isoxazolyl)carbonyl)amino)-3,3-dimethyl-7-oxo-, monosodium salt, monohydrate, (2S-(2alpha,5alpha,6beta))- .

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