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Antibiotic & Antibacterial APIs

Cloxacillin

IP/BP/USPAvailable on request

Order Cloxacillin (CAS 642-78-4) online at Zemixal: C19H17ClN3NaO5S, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-003922.

Pack sizes
Cloxacillin chemical structure
CAS number642-78-4
FormulaC19H17ClN3NaO5S
Molar mass457.9 g/mol
Physical formPowder
HS code2941
Purity98.0%
InChIKeySCLZRKVZRBKZCR-SLINCCQESA-M
IUPAC namesodium (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

About Cloxacillin

Researchers and plant chemists source Cloxacillin from Zemixal for routine and specialised work. Identity at a glance (IP/BP/USP): CAS 642-78-4, formula C19H17ClN3NaO5S and molar mass 457.9 g/mol. Typical appearance is white crystalline powder.

Common uses in the lab and plant

  • Pharmaceutical formulation
  • Generic drug development

Storage and safety notes

Classified under GHS with signal word Danger and hazard statements H302, H315, H317 and H319. Read the SDS before first use.

Available as 1 kg, 5 kg and 25 kg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Pharmaceutical formulation
  • Generic drug development

Applications

Pharmaceutical Manufacturing and QC

Grade guides

IP Grade (Indian Pharmacopoeia)BP Grade (British Pharmacopoeia)USP Grade (United States Pharmacopeia)

Specifications and identifiers

Specifications of Cloxacillin
Product nameCloxacillin
Catalogue numberZX-003922
CAS number642-78-4
IUPAC namesodium (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
Molecular formulaC19H17ClN3NaO5S
Molar mass457.9 g/mol
Exact mass457.0475
GradeIP/BP/USP
Purity / assay98.0%
Physical formPowder
AppearanceWhite crystalline powder
H-bond donors / acceptors1 / 7
Topological polar surface area141 Ų
HS code2941
InChIKeySCLZRKVZRBKZCR-SLINCCQESA-M
SMILESCC1=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+]
PubChem CID23675320
SynonymsCloxacillin sodium, Sodium cloxacillin, Cloxacillin sodium anhydrous, Monosodium cloxacillin, Ekvacillin, 3-o-Chlorophenyl-5-methyl-4-isoxazolylpenicillin sodium, Orbenin, BRL-1621, Cloxacillin (as sodium), Cloxacillin sodium salt monohydrate, Latocillin, Methocillin-s

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H335May cause respiratory irritation

Precautionary statements P233, P260, P261, P264, P264 + P265, P270, P271, P272, P280, P284, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P342 + P316, P362 + P364, P403, P403 + P233

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Cloxacillin
1 kgQuoted on request
5 kgQuoted on request
25 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Cloxacillin

Which CAS number identifies Cloxacillin?
Cloxacillin is registered under CAS 642-78-4. You may also see it listed as Cloxacillin sodium, Sodium cloxacillin, Cloxacillin sodium anhydrous. Our catalogue number for this item is ZX-003922.
What are the formula and molar mass of Cloxacillin?
For Cloxacillin, its formula is C19H17ClN3NaO5S and its molar mass is 457.9 g/mol. The systematic (IUPAC) name is 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. InChIKey SCLZRKVZRBKZCR-SLINCCQESA-M lets you match it in any structure database.
What grade and pack sizes are available for Cloxacillin?
This listing is IP/BP/USP grade with 98.0% purity. Standard packs are 1 kg, 5 kg, 25 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Cloxacillin?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Cloxacillin to my country?
Yes. Because Cloxacillin is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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