Molekula
Furosemide (Frusemide)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Furosemide (Frusemide) is a potent loop diuretic used primarily to treat fluid retention (edema) caused by heart failure, liver disease, or kidney disorders. It works by increasing urine output, reducing excess fluid in the body. This chemical has a CAS number of 54-31-9, a molecular formula of C12H11ClN2O5S, and a molecular weight of 330.74 g/mol. It is stored at ambient conditions and carries a **Danger** signal word under GHS classification. Molekula supplies Furosemide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £61.70 per pack ex VAT · £74.04 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Melting Point | ~210℃ |
| Assay | ≥98.5% |
| Individual impurity | ≤0.25% |
| Total Impurities | ≤0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| 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)
Identification
| Property | Value |
|---|---|
| SKU | 29949072 |
| 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 |
| REACH Code | Y110 |
| HTS Code | 29359075 |
| Tariff Code | 2935909099 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H360 May damage fertility or the unborn child
Precautionary statements
- P201 Obtain special instructions before use
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Aisemide
- Beronald
- Errolon
- Frusemide
- Furanthril
- Furosemid
- furosemide
- Lasix
- Seguril
- Transit
Frequently asked questions
What is furosemide (frusemide) commonly used for?
Furosemide is primarily used as a loop diuretic to treat fluid retention (edema) and high blood pressure by increasing urine output.
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 be stored?
Store furosemide at **ambient temperature** in a dry, well-ventilated area, away from incompatible substances.
What grades of furosemide does Molekula supply?
Molekula supplies **pharmaceutical-grade furosemide** suitable for research, development, and manufacturing applications.
Can Molekula supply furosemide in bulk quantities?
Yes, Molekula can provide furosemide in bulk, with flexible packaging options for large-scale orders.
What documentation is included with a furosemide order?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.