Cloxacillin

Name: Cloxacillin
Brand: Vaqora Chemicals
SKU: VQ-003922

About Cloxacillin

Listed under CAS 642-78-4, Cloxacillin is an antibacterial API available from Vaqora Chemicals (IP/BP/USP grade) at a purity of 98.0%. Formula C19H17ClN3NaO5S, molecular weight 457.9 g/mol. It is also known as Cloxacillin sodium or Sodium cloxacillin.

In its supplied form it is a white crystalline powder. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 6 hazard statements. Review the Safety Data Sheet before use.

This API belongs to our antibiotic and antibacterial APIs portfolio and is supplied to IP/BP/USP specifications for formulators, contract manufacturers and generic drug developers. Buyers come mainly from pharmaceutical manufacturing.

Standard pack sizes are 1 kg, 5 kg and 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Pharmaceutical formulation
Generic drug development

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Cloxacillin
Catalogue No.	VQ-003922
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
Molecular formula	C₁₉H₁₇ClN₃NaO₅S
Molecular weight	457.9 g/mol
Exact mass	457.0475
Grade	IP/BP/USP
Purity / assay	98.0%
HSN code	2941
InChIKey	SCLZRKVZRBKZCR-SLINCCQESA-M
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+]
PubChem CID	23675320

Physical properties
Physical form	Powder
Appearance	White crystalline powder
H-bond donors / acceptors	1 / 7
TPSA	141 Å²
Synonyms	Cloxacillin 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

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

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 is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Cloxacillin?

The CAS Registry Number of Cloxacillin is 642-78-4. It is also known as Cloxacillin sodium, Sodium cloxacillin, Cloxacillin sodium anhydrous.

What is the molecular formula and molecular weight of Cloxacillin?

Cloxacillin has the molecular formula C19H17ClN3NaO5S and a molecular weight of 457.9 g/mol. Its 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.

Which grade and pack sizes of Cloxacillin can I order?

We supply Cloxacillin in IP/BP/USP (98.0%) grade, in 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Cloxacillin?

Yes. Every lot of Cloxacillin is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Cloxacillin be shipped internationally?

Yes. Cloxacillin is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.