Molekula
Oxacillin sodium salt
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Oxacillin sodium salt is a semi-synthetic penicillin antibiotic used primarily to treat bacterial infections resistant to other penicillins. It inhibits bacterial cell wall synthesis, making it effective against gram-positive bacteria. This chemical has a CAS number of 1173-88-2, with the molecular formula C19H18N3NaO5S and a molecular weight of 423.42 g/mol. Store at 2 to 8°C under dry conditions. It carries a Danger signal word because it may cause allergy or asthma symptoms or breathing difficulties if inhaled (respiratory sensitisation, H334). It may also cause skin irritation, an allergic skin reaction, serious eye irritation and respiratory irritation. Molekula supplies Oxacillin sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £26.30 per pack ex VAT · £31.56 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White or almost white, crystalline powder. |
| Water | ≤6.0% |
| Identification | Conforms to reference |
| pH | 4.5 - 7.5 |
| Assay | ≥94% (HPLC) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 89967565 |
| CAS Number | 1173-88-2 |
| IUPAC Name | sodium (2S,5R,6R)-3,3-dimethyl-6-[(5-methyl-3-phenyl-1,2-oxazole-4-carbonyl)amino]-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate |
| EC Number | 214-636-3 |
| Molecular Formula | C19H18N3NaO5S |
| Molecular Weight | 423.42 |
| Exact Mass | 423.0865 |
| SMILES | CC1=C(C(=NO1)C2=CC=CC=C2)C(=O)N[C@H]3[C@@H]4N(C3=O)[C@H](C(S4)(C)C)C(=O)[O-].[Na+] |
| InChIKey | VDUVBBMAXXHEQP-SLINCCQESA-M |
| InChI | InChI=1S/C19H19N3O5S.Na/c1-9-11(12(21-27-9)10-7-5-4-6-8-10)15(23)20-13-16(24)22-14(18(25)26)19(2,3)28-17(13)22;/h4-8,13-14,17H,1-3H3,(H,20,23)(H,25,26);/q;+1/p-1/t13-,14+,17-;/m1./s1 |
| PubChem CID | 23667631 |
| REACH Code | Y110 |
| Tariff Code | 29411000 EXP 2941100000 IMP |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H335 May cause respiratory irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P284 Wear respiratory protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 5-Methyl-3-phenyl-4-isoxazolyl penicillin, sodium
- Anhydrous oxacillin sodium
- BRL 1400
- Monosodium oxacillin
- MSK5638Na
- Oxabel Sodium salt
- Oxacillin sodium anhydrous
- sodium 6beta-(5-methyl-3-phenylisoxazol-4-yl)penicillanate
- Sodium methylphenylisoaxazolylpenicillin
- Sodium oxacillin
Frequently asked questions
What is oxacillin sodium salt used for?
Oxacillin sodium salt is a penicillin antibiotic primarily used to treat bacterial infections caused by penicillinase-producing Staphylococcus species, including skin and soft tissue infections.
What is the chemical formula and molecular weight of oxacillin sodium salt?
The chemical formula is C₁₉H₁₈N₃NaO₅S and the molecular weight is 423.42 g/mol.
How should oxacillin sodium salt be stored?
Store at 2 to 8°C (refrigerated) in a dry, well-ventilated area, protected from light and moisture.
What grades or purities of oxacillin sodium salt does Molekula supply?
Molekula supplies pharmaceutical-grade oxacillin sodium salt (USP/EP compliant) for research, development, and manufacturing applications.
Can Molekula supply oxacillin sodium salt in bulk quantities?
Yes, we offer bulk quantities of oxacillin sodium salt, with flexible packaging options (drums, bags, or custom solutions) for large-scale orders.
What documentation comes with an order of oxacillin sodium salt?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability and compliance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.