Oxacillin (CAS 66-79-5): properties, price, suppliers and safety

What is Oxacillin?

Plain description, key identifiers and synonyms

Oxacillin is a penicillin antibiotic carrying a 5-methyl-3-phenylisoxazole-4-carboxamide group at position 6beta. It has a role as an antibacterial agent and an antibacterial drug. It is a conjugate acid of an oxacillin(1-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name: (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-carboxylic acid
CAS number: 66-79-5 CAS number cross-checkedOther or deprecated CAS: 1173-88-2
EC numbers: 200-635-5, 214-636-3
Molecular formula: C₁₉H₁₉N₃O₅S
UNII: UH95VD7V76
InChIKey: UWYHMGVUTGAWSP-JKIFEVAISA-N
InChI: InChI=1S/C19H19N3O5S/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)/t13-,14+,17-/m1/s1
Canonical SMILES: Cc1onc(-c2ccccc2)c1C(=O)NC1C(=O)N2C1SC(C)(C)C2C(=O)O
Isomeric 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

Synonyms

Oxazocillin
Oxazocilline
Oxacilina
Oxacilline
Oxacillinum
5-Methyl-3-phenyl-4-isoxazolyl-penicillin
(2S,5R,6R)-3,3-dimethyl-6-(5-methyl-3-phenyl-1,2-oxazole-4-amido)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
(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-carboxylic acid
Resistopen
Oxabel
Staphcillin V
(5-methyl-3-phenyl-4-isoxazolyl)penicillin
6beta-(5-methyl-3-phenylisoxazol-4-yl)penicillanic acid
(2S,5R,6R)-3,3-dimethyl-6-{[(5-methyl-3-phenylisoxazol-4-yl)carbonyl]amino}-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-6-(((5-methyl-3-phenyl-4-isoxazolyl)carbonyl)amino)-7-oxo-, (2S-(2alpha,5alpha,6beta))-
4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-6-(5-methyl-3-phenyl-4-isoxazolecarboxamide)-7-oxo-
Methylphenylisoxazolyl Penicillin
Penicillin, Methylphenylisoxazolyl
Oxacillin, Monosodium Salt, Anhydrous
oxacillina
Oxacillin, Sodium
Sodium, Oxacillin
(2S,5R,6R)-3,3-dimethyl-6-(((5-methyl-3-phenylisoxazol-4-yl)carbonyl)amino)-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid
(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-carboxylic acid
(2S,5R,6R)-3,3-dimethyl-6-(5-methyl-3-phenyl-1,2-oxazole-4-amido)-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid

Show all 32 synonyms

MPI-penicillin
Oxacillin (INN)
Penicillin, (5-methyl-3-phenyl-4-isoxazolyl)-
Ossacillina
Prostaphlyn
MPi-PC
4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-6-[[(5-methyl-3-phenyl-4-isoxazolyl)carbonyl]amino]-7-oxo-, (2S,5R,6R)-

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight	401.44 g/molcalc.
Exact mass	401.1045 Dacalc.
LogP (octanol/water)	1.9calc.
Topological polar surface area	112.7 Å²calc.
Hydrogen bond donors	2calc.
Hydrogen bond acceptors	6calc.
Rotatable bonds	4calc.
Heavy atoms	28calc.
Rings	4calc.
Aromatic rings	2calc.
Fraction sp3 carbons	0.37calc.
Formal charge	0calc.
Stereocentres	3calc.
Lipinski rule of five	Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

O=C(NC1C(=O)N2CCSC12)c1conc1-c1ccccc1

4 rings, 22 atoms.

48 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word

Danger

Harmful or irritant

Serious health hazard

Hazard statements

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 (23)

P233Keep container tightly closed.
P260Do not breathe dust, fume, gas, mist, vapours or spray.
P261Avoid breathing dust, fume, gas, mist, vapours or spray.
P264Wash skin thoroughly after handling.
P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P280Wear protective gloves, protective clothing, eye protection and face protection.
P284In case of inadequate ventilation wear respiratory protection.
P302 + P352If on skin: Wash with plenty of water.
P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P319Get medical help if you feel unwell.
P321Specific treatment (see supplemental first aid instructions on the label).
P332 + P317If skin irritation occurs: Get medical help.
P333 + P317If skin irritation or rash occurs: Get medical help.
P337 + P317If eye irritation persists: Get medical help.
P342 + P316If experiencing respiratory symptoms: Get emergency medical help immediately.
P362 + P364Take off contaminated clothing. And wash it before reuse.
P403Store in a well-ventilated place.
P403 + P233Store in a well-ventilated place. Keep container tightly closed.
P405Store locked up.
P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Oxacillin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 36 suppliers

Verified only30 of 30 offers

CAD Pharma Inc.
India, BengaluruUnclaimed profile
OxacillinGrade, purity and minimum order on request
Price on request
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Eumedica Pharmaceuticals Industries Sociedad Limitada.
Spain, Llanera ManufacturerUnclaimed profile
OxacillinGrade, purity and minimum order on request
Price on request
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Ultra Care for Trading
Egypt, Cairo ManufacturerUnclaimed profile
OxacillinGrade, purity and minimum order on request
Price on request
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Desla Agripharma Private Limited
India ManufacturerUnclaimed profile
OxacillinGrade, purity and minimum order on request
Price on request
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Dangschat T.O.H. GmbH & Co.
Germany, Hamburg ManufacturerUnclaimed profile
OxacillinGrade, purity and minimum order on request
Price on request
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001Chemical
China, HangzhouUnclaimed profile
OxacillinGrade, purity and minimum order on request
Price on request
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10X Chem
United States, San DiegoUnclaimed profile
OxacillinGrade, purity and minimum order on request
Price on request
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3WAY Pharm Inc
China, ShanghaiUnclaimed profile
OxacillinGrade, purity and minimum order on request
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A2B Chem LLC
United States, San DiegoUnclaimed profile
OxacillinGrade, purity and minimum order on request
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Aa Blocks LLC
United States, San DiegoUnclaimed profile
OxacillinGrade, purity and minimum order on request
Price on request
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

36 suppliers in 11 countries

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Oxacillin price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Use classes: Pharmaceuticals.

Industries and functions

Antibacterials and antibiotics in pharmaceuticals

Pharmacological actions

Anti-Bacterial Agents

Roles

antibacterial agent
antibacterial drug
antiinfective agent
antimicrobial agent
antimicrobial drug
pharmaceutical

Pharmacology

Oxacillin is a Penicillin-class Antibacterial.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Oxacillin is traded under.

HS 2941.10Indicative HS code

Penicillins and their derivatives with a penicillanic acid structure, salts thereof

World exports in 2024

$1.66B

−2.5% vs 2023, imports $1.63B

2019 to 2024

Top exporters

China56.8%
Spain13.1%
India * partner reported7.7%

Top importers

India * partner reported16.4%
Austria9.3%
Brazil5.4%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Oxacillin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Parent and salt forms, stereoisomers, similar structures and isomers

Salt and hydrate forms

Records that share this compound as their parent

Oxacillin sodium chemical structure, C19H20N3NaO6S, CAS 7240-38-2

Oxacillin sodium7240-38-2C₁₉H₂₀N₃NaO₆S62 suppliers

Oxacillin sodium salt chemical structure, C19H18N3NaO5S, CAS 1173-88-2

Oxacillin sodium salt1173-88-2C₁₉H₁₈N₃NaO₅S36 suppliers

Sodium N-[(2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-yl]-5-methyl-3-phenyl-1,2-oxazole-4-carboximidate chemical structure, C19H18N3NaO5S

Sodium N-[(2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-yl]-5-methyl-3-phenyl-1,2-oxazole-4-carboximidateC₁₉H₁₈N₃NaO₅S

4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-6-[[(5-methyl-3-phenyl-4-isoxazolyl)carbonyl]amino]-7-oxo-, sodium salt (1:1), (2S,5R,6R)- chemical structure, C19H19N3NaO5S

4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-6-[[(5-methyl-3-phenyl-4-isoxazolyl)carbonyl]amino]-7-oxo-, sodium salt (1:1), (2S,5R,6R)-C₁₉H₁₉N₃NaO₅S

Stereoisomers and isotopic forms

Same connectivity, different stereochemistry or isotopes (same InChIKey skeleton)

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-carboxylic acid chemical structure, C19H19N3O5S, CAS 740789-23-5

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-carboxylic acid740789-23-5C₁₉H₁₉N₃O₅S

Similar structures

Nearest neighbours by Morgan fingerprint Tanimoto similarity

Oxacillin benzathine chemical structure, C54H58N8O10S2, CAS 916-96-1

Cloxacillin chemical structure, C19H18ClN3O5S, CAS 61-72-3

Dicloxacillin chemical structure, C19H17Cl2N3O5S, CAS 3116-76-5

Pharmakon1600-01500238 chemical structure, C19H17Cl2N3NaO5S+

77% similar

Pharmakon1600-01500238C₁₉H₁₇Cl₂N₃NaO₅S+

C19H17Cl2N3NaO5S chemical structure, C19H17Cl2N3NaO5S

77% similar

C19H17Cl2N3NaO5SC₁₉H₁₇Cl₂N₃NaO₅S

Sodium, (2S,5R,6R)-6-[[3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate, hydrate chemical structure, C19H19Cl2N3NaO6S

Flucloxacillin chemical structure, C19H17ClFN3O5S, CAS 5250-39-5

Same formula isomers

Different compounds that share this molecular formula

All isomers

N-(4-(N-(3,4-Dimethylisoxazol-5-yl)sulfamoyl)phenyl)-4-methoxybenzamide chemical structure, C19H19N3O5S, CAS 301681-50-5

N-(4-(N-(3,4-Dimethylisoxazol-5-yl)sulfamoyl)phenyl)-4-methoxybenzamide301681-50-5C₁₉H₁₉N₃O₅S

N-(4-(N-(3,4-Dimethylisoxazol-5-yl)sulfamoyl)phenyl)-3-methoxybenzamide chemical structure, C19H19N3O5S, CAS 302950-24-9

N-(4-(N-(3,4-Dimethylisoxazol-5-yl)sulfamoyl)phenyl)-3-methoxybenzamide302950-24-9C₁₉H₁₉N₃O₅S

7-Ethoxy-3-[5-(2-furanyl)-2-methylsulfonyl-3,4-dihydropyrazol-3-yl]-1H-quinolin-2-one chemical structure, C19H19N3O5S, CAS 796878-50-7

7-Ethoxy-3-[5-(2-furanyl)-2-methylsulfonyl-3,4-dihydropyrazol-3-yl]-1H-quinolin-2-one796878-50-7C₁₉H₁₉N₃O₅S

Dechloro-rivaroxaban chemical structure, C19H19N3O5S, CAS 1415566-28-7

Dechloro-rivaroxaban1415566-28-7C₁₉H₁₉N₃O₅S

(E)-N-[(4-Ethoxy-2-nitrophenyl)carbamothioyl]-3-(4-methoxyphenyl)prop-2-enamide chemical structure, C19H19N3O5S, CAS 1164538-65-1

(E)-N-[(4-Ethoxy-2-nitrophenyl)carbamothioyl]-3-(4-methoxyphenyl)prop-2-enamide1164538-65-1C₁₉H₁₉N₃O₅S

[4-Phenyl-5-(3,4,5-trimethoxy-phenyl)-4H-[1,2,4]triazol-3-ylsulfanyl]-acetic acid chemical structure, C19H19N3O5S, CAS 18204-69-8

[4-Phenyl-5-(3,4,5-trimethoxy-phenyl)-4H-[1,2,4]triazol-3-ylsulfanyl]-acetic acid18204-69-8C₁₉H₁₉N₃O₅S

N-{4-[(3,4-Dimethyl-1,2-oxazol-5-yl)sulfamoyl]phenyl}-2-phenoxyacetamide chemical structure, C19H19N3O5S, CAS 303792-43-0

N-{4-[(3,4-Dimethyl-1,2-oxazol-5-yl)sulfamoyl]phenyl}-2-phenoxyacetamide303792-43-0C₁₉H₁₉N₃O₅S

N-[3-[2-Acetyl-3-(1,3-benzodioxol-5-yl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide chemical structure, C19H19N3O5S, CAS 797780-84-8

N-[3-[2-Acetyl-3-(1,3-benzodioxol-5-yl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide797780-84-8C₁₉H₁₉N₃O₅S

N-[4-(3,4-Dimethyl-isoxazol-5-ylsulfamoyl)-phenyl]-2-methoxy-benzamide chemical structure, C19H19N3O5S, CAS 301681-51-6

N-[4-(3,4-Dimethyl-isoxazol-5-ylsulfamoyl)-phenyl]-2-methoxy-benzamide301681-51-6C₁₉H₁₉N₃O₅S

4-Ethoxy-N-(4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)benzamide chemical structure, C19H19N3O5S, CAS 459415-63-5

4-Ethoxy-N-(4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)benzamide459415-63-5C₁₉H₁₉N₃O₅S

2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-3-methyl-N-(4-sulfamoylphenyl)butanamide chemical structure, C19H19N3O5S, CAS 611176-11-5

2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-3-methyl-N-(4-sulfamoylphenyl)butanamide611176-11-5C₁₉H₁₉N₃O₅S

6-Acetyl-2-(2,3-dihydro-1,4-benzodioxine-3-carbonylamino)-5,7-dihydro-4H-thieno[2,3-c]pyridine-3-carboxamide chemical structure, C19H19N3O5S, CAS 864928-07-4

6-Acetyl-2-(2,3-dihydro-1,4-benzodioxine-3-carbonylamino)-5,7-dihydro-4H-thieno[2,3-c]pyridine-3-carboxamide864928-07-4C₁₉H₁₉N₃O₅S

Frequently asked questions

Quick answers about Oxacillin, based on the data on this page

What is Oxacillin?

Oxacillin is a penicillin antibiotic carrying a 5-methyl-3-phenylisoxazole-4-carboxamide group at position 6beta. It has a role as an antibacterial agent and an antibacterial drug. It is a conjugate acid of an oxacillin(1-).

What is the CAS number of Oxacillin?

The CAS registry number of Oxacillin is 66-79-5. Other or deprecated CAS numbers: 1173-88-2.

What is the molecular formula and weight of Oxacillin?

The molecular formula of Oxacillin is C19H19N3O5S and its molar mass is 401.44 g/mol.

What is Oxacillin used for?

Use classes: Pharmaceuticals.

Is Oxacillin hazardous?

Oxacillin carries the GHS signal word "Danger". Main hazards: causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Oxacillin?

Oxacillin is usually classified under HS code 294110 (Penicillins and their derivatives with a penicillanic acid structure, salts thereof). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Oxacillin?

CompoundList lists 36 suppliers of Oxacillin in United States, China, India, Spain and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Oxacillin in India?

3 suppliers in India list Oxacillin on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Oxacillin?

Suppliers quote Oxacillin on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Oxacillin

Oxacillin

Key facts

What is Oxacillin?

Identifiers

Synonyms

Physical and chemical properties

Physical and chemical properties

Computed descriptors

Murcko scaffold

Safety and hazards

Hazard statements

Oxacillin suppliers

Where suppliers are based

Send one request to many suppliers

Oxacillin price

Uses and applications

Industries and functions

Pharmacological actions

Roles

Pharmacology

Regulatory status

Health and food

HS code and trade data

Global trade

Frequently asked questions

What is Oxacillin?

What is the CAS number of Oxacillin?

What is the molecular formula and weight of Oxacillin?

What is Oxacillin used for?

Is Oxacillin hazardous?

What is the HS code of Oxacillin?

Where can I buy Oxacillin?

Where can I buy Oxacillin in India?

What is the price of Oxacillin?

Guides for buyers

Get quotes for Oxacillin

Key facts

What is Oxacillin?

Identifiers

Synonyms

Physical and chemical properties

Physical and chemical properties

Computed descriptors

Murcko scaffold

Safety and hazards

Hazard statements

Oxacillin suppliers

Where suppliers are based

Send one request to many suppliers

Oxacillin price

Uses and applications

Industries and functions

Pharmacological actions

Roles

Pharmacology

Regulatory status

Health and food

HS code and trade data

Global trade

Related chemicals

Salt and hydrate forms

Stereoisomers and isotopic forms

Similar structures

Same formula isomers

Frequently asked questions

What is Oxacillin?

What is the CAS number of Oxacillin?

What is the molecular formula and weight of Oxacillin?

What is Oxacillin used for?

Is Oxacillin hazardous?

What is the HS code of Oxacillin?

Where can I buy Oxacillin?

Where can I buy Oxacillin in India?

What is the price of Oxacillin?

Guides for buyers

Get quotes for Oxacillin