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Potassium clavulanate

Also known as: Clavulanate potassium, Clavulanic acid potassium salt, Potassium clavulanate, (2R,3Z,5R)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylic acid monopotassium salt, BRL 14151K, MM 1415, 4-Oxa-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3-(2-hydroxyethylidene)-7-oxo-, monopotassium salt, (2R,3Z,5R)-

Potassium clavulanate (CAS 61177-45-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8KNO5 and a molecular weight of 237.251 g/mol. Key properties include a melting point of >1600C (dec), a boiling point of 545.8ºC at 760 mmHg and a flash point of 283.9ºC. It is classified under GHS with signal word Danger and hazard statements H228, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
61177-45-5
Jingsj CID
J-45411-5
Molecular Formula
C8H8KNO5
Molecular Weight
237.251 g/mol
Category
Organic Acids
Last updated
11/3/2026

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Physicochemical Properties

Melting Point>1600C (dec)
Boiling Point545.8ºC at 760 mmHg
Flash Point283.9ºC
Exact Mass237.003952
PSA89.90000
Storage Conditions2-8℃

GHS Safety & Compliance

Flammable / Health HazardSignal word: Danger
  • H228
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H334 — May cause allergy or asthma symptoms if inhaled

Activity & Biological Data

Targetβ-lactamase[1]
Additional Information[1]. Reading C, et al. Clavulanic Acid: a Beta-Lactamase-Inhibiting Beta-Lactam from Streptomyces clavuligerus. Antimicrob Agents Chemother. 1977 May; 11(5): 852–857. [2]. Stokes DH, et al. Bactericidal effects of amoxycillin/clavulanic acid against intracellular Legionella pneumophila in tissue culture studies. J Antimicrob Chemother. 1989 Apr;23(4):547-56.

Customs & Trade Information

HS Code2942000000

Frequently Asked Questions

What is the CAS number of Potassium clavulanate?

The CAS number of Potassium clavulanate is 61177-45-5.

What are the molecular formula and molecular weight of Potassium clavulanate?

Potassium clavulanate has molecular formula C8H8KNO5 and molecular weight 237.251 g/mol.

Is Potassium clavulanate hazardous?

Potassium clavulanate has GHS signal word Danger and hazard statements H228; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Potassium clavulanate?

For Potassium clavulanate, Downstream Products: 2,5-Pyrazinediethanol, 3-Ethyl-2,5-pyrazinediethanol, 3,6-bis(2-hydroxyethyl)-2-pyrazinepropanoic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Potassium clavulanate (CAS 61177-45-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45411-5 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.