Cloxacillin Sodium CAS 7081-44-9
Product Name:Sodium cloxacillin monohydrate
Synonym:Orbenin;Tegopen;Staphybiotic;cloxacillin sodium hydrate;Ankerbin;Cloxapen;Prostaphilin A;Austrastaph;Gelstaph
CAS NO.:7081-44-9
EINECS NO.:629-588-2
Molecular Formula:C19H19ClN3NaO6S
Purity & Grade: 99%; Medicine grade
Character:White powder
Free sample:Available
Stock:In stock
Warehouse: USA/EU/AU Warehouse
MOQ & Package: 1g; Package according to demand
Shipping: Safe and fast delivery
Lead Time: 7-15 days
Store & Shelf life: Cool & dry place; 24 months
Description
Product description

White powder or crystalline powder. Melting point 170℃ (decomposition). Soluble in water, moisture-inducing, slightly smelly, bitter taste.
The antimicrobial cloxacillin sodium is the sodium salt of cloxacillin and is penicillinase-resistant, acid-resistant, semi-synthetic penicillin. Cloxacillin sodium plays a bactericidal role on susceptible microorganisms in the active proliferation stage. Cloxacillin sodium acts by inhibiting cell wall mucopeptide biosynthesis.
The product is a semi-synthetic antibiotic, and the action characteristics and uses of oxacillin are very similar, and it has bactericidal effect on drug-resistant Staphylococcus aureus. It is mainly used for infection caused by drug-resistant Staphylococcus aureus, such as sepsis, osteomyelitis, skin and soft tissue infection, endocarditis, urinary system infection and meningitis.

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COA
| Test item | Standard | Results |
| Description | White or almost white,hygroscopic,crystalline powder | White,hygroscopic, crystalline powder |
| Solubility | Freely soluble in water and in methanol,soluble in ethanol(96 per cent) | Complies |
| Identification | (A):Infrared absorption spectrophotometry (B): The retention time of the major peak of the Sample solution corresponds to that ofthe Standard solution,as obtained in the Assay. (C):It gives reaction(a)of sodium |
(A):Complies (B):Complies (C):Positive |
| Crystallinity | Meet the requirements | Complies |
| PH | 4.5-7.5 | 5.16 |
| Organic impurities | Amoxicillin related compound A≤1.0% Cloxacillin penicilloic acid ≤1.0% Cloxacillin penilloic acid≤1.0% Cloxacillin related compound D≤1.0% Tiocloxacillin≤1.0% Cloxacillin penicillamide≤1.0% Cloxacillin penicilloic penicillamide ≤1.0% Any individual unspecified impurity≤1.0% Total impurities≤5.0% |
Not detected 0.08% Not detected 0.03% 0.07% 0.19% Not detected 0.24% 0.87% |
| Water | 3.0~5.0% | 3.80% |
| Dimethylaniline | ≤20ppm | Not detected |
| Sterility | Meet the requirements | Complies |
| Bacterial endotoxins | ≤0.2EU/mg | <0.2EU/mg |
| Residual solvents | Ethyl acetate ≤0.5% Acetone ≤0.5% Butyl acetate ≤0.5% |
0.42% 0.31% Not detected |
| Assay | Not less than 825μg ofcloxacillin(CgH₈CIN₃O₃S)per mg. | 900.5μg/mg |
| Conclusion | Conform with enterprise specification | |

Boiling point 689.7ºC at 760 mmHg
Molecular formula C19H19ClN3NaO6S
Molecular weight 475.88
Flash point 370.9ºC
PSA 136.54000
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Is cloxacillin a strong antibiotic?
Cloxacillin is used against staphylococci that produce beta-lactamase, due to its large R chain, which does not allow the beta-lactamases to bind. This drug has a weaker antibacterial activity than benzylpenicillin, and is devoid of serious toxicity except for allergic reactions.
What is cloxacillin sodium used for?
cloxacillin sodium is an antibiotic agent used for the treatment of beta-hemolytic streptococcal and pneumococcal infections as well as staphylococcal infections. A semi-synthetic penicillin antibiotic which is a chlorinated derivative of oxacillin.
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