Molekula
Colistin sodium methanesulfonate from bacillus colistinus
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
Colistin sodium methanesulfonate is a polymyxin antibiotic derived from Bacillus colistinus, used primarily as a last-resort treatment for multidrug-resistant Gram-negative bacterial infections. It is available in powder form with a CAS number of 8068-28-8, molecular formula C58H115N16Na5O28S5, and molecular weight of 1759.90 g/mol. Store at 2 to 8 °C. Hazard statement: Warning. Molekula supplies Colistin sodium methanesulfonate 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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100 mg — £29.50 per pack ex VAT · £35.40 inc. VAT
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1 g — £171.50 per pack ex VAT · £205.80 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 powder to slight yellow powder |
| pH | 6.5 - 8.5 |
| Loss on Drying | ≤ 7.0% |
| Solubility | Freely soluble in acetone, methanol and ether. |
| Potency | ≥ 390μg/mg |
| Bacterial endotoxins | ≤ 2.0EU/mg |
| Identification (IR) | Conforms to structure |
| Microbial Limit | TAMC ≤ 1000cfu/g , TYMC ≤100cfu/g |
| Free Colistin | No immediate ppt formed |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | Not regulated |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 27970465 |
| CAS Number | 8068-28-8 |
| Molecular Formula | C58H115N16Na5O28S5 |
| Molecular Weight | 1759.90 |
| SMILES | CC[C@@H](C)CCCCC(=O)N[C@H](CCNCS(=O)(=O)[O-])C(=O)N[C@H]([C@@H](C)O)C(=O)N[C@H](CCNCS(=O)(=O)[O-])C(=O)N[C@@H]1CCNC(=O)[C@H](NC(=O)[C@H](NC(=O)[C@H](NC(=O)[C@H](NC(=O)[C@H](NC(=O)[C@H](NC1=O)CCNCS(=O)(=O)[O-])CC(C)C)CC(C)C)CCNCS(=O)(=O)[O-])CCNCS(=O)(=O)[O-])[C@@H](C)O.[Na+].[Na+].[Na+].[Na+].[Na+] |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29419050 |
| Tariff Code | 2941900000 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H317 May cause an allergic skin reaction
- H361 Suspected of damaging fertility or the unborn child
- H362 May cause harm to breast-fed children
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, 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
No alternate names recorded for this product.
Frequently asked questions
What is colistin sodium methanesulfonate used for?
It is primarily used as an antibiotic in veterinary medicine and research, effective against Gram-negative bacteria, particularly in cases of multidrug-resistant infections.
What is the chemical formula and molecular weight?
The formula is C58H115N16Na5O28S5 with a molecular weight of 1759.90 g/mol.
How should colistin sodium methanesulfonate be stored?
It should be stored at 2 to 8 °C, protected from light and moisture, and kept in a tightly sealed container.
What grade is available?
It is available in research grade, suitable for laboratory use and scientific studies.
Can Molekula supply it in bulk?
Yes, Molekula can supply colistin sodium methanesulfonate in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS); additional documentation can be provided upon request.
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.