Molekula
Metformin base
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
Metformin base is a biguanide antihyperglycemic agent used primarily in the treatment of type 2 diabetes. It works by decreasing hepatic glucose production and improving insulin sensitivity. Available in powder form with a CAS number of 657-24-9, molecular formula C4H11N5, and molecular weight of 129.16 g/mol. Stable at ambient storage conditions. Signal word: Warning. Molekula supplies Metformin base 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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1 g — £66.30 per pack ex VAT · £79.56 inc. VAT
Need a different quantity or pack?
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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Heavy metals | ≤10ppm |
| Loss on Drying | ≤0.5% |
| Assay | 98.5 - 101% |
| Residue on Ignition | ≤0.1% |
| Total Impurities | ≤0.5% |
| Any other impurity | ≤0.1% |
| Related Compound A | ≤0.02% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 223 - 226 °C |
| pKa | pKa = 12.4 |
Source: PubChem CID 4091 (Human Metabolome Database (HMDB), DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 70752461 |
| CAS Number | 657-24-9 |
| IUPAC Name | 3-(diaminomethylidene)-1,1-dimethylguanidine |
| Molecular Formula | C4H11N5 |
| Molecular Weight | 129.16 |
| Exact Mass | 129.1014 |
| SMILES | CN(C)C(=N)N=C(N)N |
| InChIKey | XZWYZXLIPXDOLR-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H11N5/c1-9(2)4(7)8-3(5)6/h1-2H3,(H5,5,6,7,8) |
| PubChem CID | 4091 |
| REACH Code | Y110 |
| HTS Code | 29241911 |
| Tariff Code | 2924190090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
Precautionary statements
- P264 Wash thoroughly after handling
- 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
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- 1,1-Dimethylbiguanide
- Dimethylbiguanide
- metformin
- Metformina
- Metformine
- Metiguanide
- N,N-Dimethylbiguanide
- N,N-Dimethyldiguanide
- N,N-dimethylimidodicarbonimidic diamide
- N1,N1-Dimethylbiguanide
Frequently asked questions
What is Metformin base used for?
Metformin base is primarily used in the treatment of type 2 diabetes mellitus to improve blood sugar control.
What is the chemical formula and molecular weight of Metformin base?
The chemical formula is C4H11N5 and the molecular weight is 129.16 g/mol.
How should Metformin base be stored?
Metformin base should be stored at ambient temperature, protected from moisture and light.
What grade of Metformin base does Molekula supply?
Molekula supplies Metformin base in research grade, suitable for laboratory use.
Can Molekula supply Metformin base in bulk quantities?
Yes, Molekula can supply Metformin base in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Metformin base order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.