Molekula
Cloxacillin 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
Cloxacillin sodium salt is a semi-synthetic penicillin antibiotic used to treat bacterial infections caused by Gram-positive bacteria, particularly those resistant to other penicillins. It is available in powder form for reconstitution. CAS: 642-78-4, Molecular Formula: C19H17ClN3NaO5S, Molecular Weight: 457.86 g/mol, Storage: 2 to 8 °C, Signal Word: Danger. Molekula supplies Cloxacillin 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 — $94.60 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Water | ≤ 5.0% |
| Specific rotation | +164° to +167° |
| Single Impurity | ≤ 1.0% |
| pH | 5.0 - 7.0 |
| Acetone | ≤ 0.5% |
| Assay | ≥ 93.0% |
| Ethyl acetate | ≤ 0.1% |
| Total Impurities | ≤ 1.0% |
| Butyl acetate | ≤ 0.5% |
| Ethyl Alcohol | ≤ 0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 12372159 |
| CAS Number | 642-78-4 |
| 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 |
| EC Number | 211-390-9 |
| Molecular Formula | C19H17ClN3NaO5S |
| Molecular Weight | 457.86 |
| Exact Mass | 457.0475 |
| SMILES | CC1=C(C(=NO1)C2=CC=CC=C2Cl)C(=O)N[C@H]3[C@@H]4N(C3=O)[C@H](C(S4)(C)C)C(=O)[O-].[Na+] |
| InChIKey | SCLZRKVZRBKZCR-SLINCCQESA-M |
| InChI | InChI=1S/C19H18ClN3O5S.Na/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);/q;+1/p-1/t13-,14+,17-;/m1./s1 |
| PubChem CID | 23675320 |
| REACH Code | Y110 |
| HTS Code | 29411050 |
| Tariff Code | 2941100000 |
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
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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
- 3-o-Chlorophenyl-5-methyl-4-isoxazolylpenicillin sodium
- Cloxacillin (as sodium)
- Cloxacillin sodium
- Cloxacillin sodium anhydrous
- Cloxapen
- Dariclox
- Ekvacillin
- Monosodium cloxacillin
- Orbenin
- Sodium cloxacillin
Frequently asked questions
What is Cloxacillin sodium salt used for?
Cloxacillin sodium salt is a penicillinase-resistant penicillin antibiotic used to treat bacterial infections, particularly those caused by penicillinase-producing, methicillin-susceptible staphylococci.
What is the chemical formula and molecular weight of Cloxacillin sodium salt?
The formula is C19H17ClN3NaO5S with a molecular weight of 457.86 g/mol.
How should Cloxacillin sodium salt be stored?
It should be stored at 2 to 8 °C and protected from light and moisture.
What grade of Cloxacillin sodium salt does Molekula supply?
Molekula supplies Cloxacillin sodium salt in research-grade purity.
Can Molekula supply Cloxacillin sodium salt in bulk quantities?
Yes, Molekula can supply Cloxacillin sodium salt in bulk quantities—please contact our sales team for volume pricing and availability.
What documentation comes with a purchase of Cloxacillin sodium salt?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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.