Molekula

Furosemide (Frusemide) - USP CRS

SKU 90037953 CAS 54-31-9 C12H11ClN2O5S MW 330.74 Available on enquiry

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Furosemide (Frusemide) is a potent loop diuretic used primarily to treat fluid retention (edema) and high blood pressure by promoting the excretion of water and electrolytes through the kidneys. It is also employed in veterinary medicine and research settings for its rapid onset of action. This chemical meets USP (United States Pharmacopeia) standards as a Certified Reference Standard (CRS), ensuring high purity and reliability for analytical and pharmaceutical applications. Its CAS number is 54-31-9, with a molecular formula of C12H11ClN2O5S and a molecular weight of 330.74 g/mol. Store at ambient conditions, but handle with caution—it carries a "Danger" signal word due to potential health risks. Molekula supplies Furosemide (Frusemide) - USP CRS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.

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Overview

SKU: 90037953
CAS Number: 54-31-9
IUPAC Name: 4-chloro-2-(furan-2-ylmethylamino)-5-sulfamoylbenzoic acid
EC Number: 200-203-6
Molecular Formula: C12H11ClN2O5S
Molecular Weight: 330.74
Exact Mass: 330.0077
SMILES: C1=COC(=C1)CNC2=CC(=C(C=C2C(=O)O)S(=O)(=O)N)Cl
InChIKey: ZZUFCTLCJUWOSV-UHFFFAOYSA-N
InChI: InChI=1S/C12H11ClN2O5S/c13-9-5-10(15-6-7-2-1-3-20-7)8(12(16)17)4-11(9)21(14,18)19/h1-5,15H,6H2,(H,16,17)(H2,14,18,19)
PubChem CID: 3440

Synonyms

Aisemide
Beronald
Errolon
Frusemide
Furanthril
Furosemid
furosemide
Lasix
Seguril
Transit

Literature values

Published physical properties of the substance, not batch specifications.

Appearance: White to off-white crystalline powder
Odour: Odorless
Melting Point: 206 °C
Water Solubility: 73.1 mg/L at 30 °C
Solubility (other solvents): Soluble in methanol, acetone, dilute NaOH
pKa: pKa = 3.65
log P (octanol/water): 2.03

Source: PubChem CID 3440 (HSDB, ChEMBL)

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Frequently asked questions

What is Furosemide (Frusemide) USP CRS primarily used for?

Furosemide USP CRS is a high-purity reference standard used for analytical testing, quality control, and research in pharmaceutical formulations, particularly as a loop diuretic in medical applications.

What is the chemical formula and molecular weight of Furosemide?

The chemical formula is **C₁₂H₁₁ClN₂O₅S**, and the molecular weight is **330.74 g/mol**.

How should Furosemide USP CRS be stored?

Store at **ambient temperature** in a dry, well-ventilated area, away from incompatible substances.

What grade of Furosemide does Molekula supply, and is USP CRS available in bulk?

Molekula supplies **USP CRS grade** Furosemide, and we can accommodate **bulk orders**—please contact us for pricing and lead times.

What safety documentation or certifications come with a Furosemide USP CRS order?

Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **USP compliance documentation** for traceability.

Related products

Molekula has supplied fine chemicals and biochemicals since 2000 from ISO 9001:2015 and ISO 14001:2015 certified facilities. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.