Cloxacillin

Name: Cloxacillin
Brand: Zemixal
SKU: ZX-036455

Reference StandardAvailable on request

Order Cloxacillin (CAS 61-72-3) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-036455.

Pack sizes

CAS number61-72-3

FormulaC₁₉H₁₈ClN₃O₅S

Molar mass435.9 g/mol

Physical formSolid

HS code38229090

InChIKeyLQOLIRLGBULYKD-JKIFEVAISA-N

IUPAC name(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-carboxylic acid

About Cloxacillin

Cloxacillin is supplied by Zemixal as a characterised reference material for Oxacillin analysis. Identity at a glance (Reference Standard): CAS 61-72-3, formula C19H18ClN3O5S and molar mass 435.9 g/mol. It is handled as a solid.

Common uses in the lab and plant

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Handling and storage

Hazard communication follows GHS (Danger: H315, H317, H319 and H334). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Oxacillin

See every impurity, metabolite and related compound we list for this API.

Oxacillin standards

Typical uses

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Cloxacillin
Product name	Cloxacillin
Catalogue number	ZX-036455
CAS number	61-72-3
IUPAC name	(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-carboxylic acid
Molecular formula	C₁₉H₁₈ClN₃O₅S
Molar mass	435.9 g/mol
Exact mass	435.0656
Grade	Reference Standard
Physical form	Solid
XLogP3	2.4
H-bond donors / acceptors	2 / 7
Topological polar surface area	138 Å²
HS code	38229090
InChIKey	LQOLIRLGBULYKD-JKIFEVAISA-N
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
PubChem CID	6098
Synonyms	Cloxacilline, Methocillin S, Chloroxacillin, (3-(o-Chlorophenyl)-5-methyl-4-isoxazolyl)penicillin, 6-(3-(o-Chlorophenyl)-5-methyl-4-isoxazolecarboxamido)penicillanic acid, Cloxacillin, Sodium, Sodium, Cloxacillin, cloxacillinum natricum, Clossacillina [DCIT], BRL 1621, Methylchlorphenylisoxazoryl-penicillin, Tegopen (sodium monohydrate)

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

Safety and GHS hazards

Irritant or harmful

Health hazard

Signal word Danger

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, P271, P272, P280, P284, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P333 + P317, P337 + P317, P342 + P316, P362 + P364, P403, P403 + P233, P405, P501

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
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted 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 61-72-3. You may also see it listed as Cloxacilline, Methocillin S, Chloroxacillin. Our catalogue number for this item is ZX-036455.

What are the formula and molar mass of Cloxacillin?

For Cloxacillin, its formula is C19H18ClN3O5S and its molar mass is 435.9 g/mol. The systematic (IUPAC) name is (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-carboxylic acid. InChIKey LQOLIRLGBULYKD-JKIFEVAISA-N lets you match it in any structure database.

How is Cloxacillin used in pharmaceutical QC?

Cloxacillin is a characterised reference material linked to Oxacillin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Cloxacillin?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. 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.

More Oxacillin standards

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