Molekula
Tobramycin 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
Tobramycin Base is an aminoglycoside antibiotic used primarily to treat bacterial infections, including those caused by Gram-negative bacteria. It works by inhibiting protein synthesis in susceptible microorganisms, making it effective in ophthalmic, inhalation, and injectable formulations. Tobramycin Base has a CAS number of 32986-56-4, with the molecular formula C18H37N5O9 and a molecular weight of 467.51. It must be stored between 2 to 8°C and carries a signal word of Warning for safety. Molekula supplies Tobramycin 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.
Often bought together
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 — £30.90 per pack ex VAT · £37.08 inc. VAT
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5 g — £93.30 per pack ex VAT · £111.96 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 |
| Water | ≤8.0% |
| Specific rotation | +138° to +148° |
| Identification | Conforms to reference |
| pH | 9.0 to 11.0 |
| Residue on Ignition | ≤0.3% |
| Residual Solvents | ≤5000ppm |
| Solution | Clear, ≤Y3 |
| Bacterial endotoxins | ≤2EU/mg |
| Hygroscopic Assay (Anhydrous basis) | ≥900ug/mg |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Base |
For research use only. Not for human use.
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Crystals |
| Solubility (other solvents) | Very slightly soluble in ethanol (1 in 2000 parts). Practically insoluble in chloroform, ether |
Source: PubChem CID 36294 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 76303024 |
| CAS Number | 32986-56-4 |
| IUPAC Name | (2S,3R,4S,5S,6R)-4-amino-2-[(1S,2S,3R,4S,6R)-4,6-diamino-3-[(2R,3R,5S,6R)-3-amino-6-(aminomethyl)-5-hydroxyoxan-2-yl]oxy-2-hydroxycyclohexyl]oxy-6-(hydroxymethyl)oxane-3,5-diol |
| EC Number | 251-322-5 |
| Molecular Formula | C18H37N5O9 |
| Molecular Weight | 467.51 |
| Exact Mass | 467.2591 |
| SMILES | C1[C@@H]([C@H]([C@@H]([C@H]([C@@H]1N)O[C@@H]2[C@@H]([C@H]([C@@H]([C@H](O2)CO)O)N)O)O)O[C@@H]3[C@@H](C[C@@H]([C@H](O3)CN)O)N)N |
| InChIKey | NLVFBUXFDBBNBW-PBSUHMDJSA-N |
| InChI | InChI=1S/C18H37N5O9/c19-3-9-8(25)2-7(22)17(29-9)31-15-5(20)1-6(21)16(14(15)28)32-18-13(27)11(23)12(26)10(4-24)30-18/h5-18,24-28H,1-4,19-23H2/t5-,6+,7+,8-,9+,10+,11-,12+,13+,14-,15+,16-,17+,18+/m0/s1 |
| PubChem CID | 36294 |
| REACH Code | Y110 |
| HTS Code | 2941905000 |
| Tariff Code | 2941900000 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H361f Suspected of damaging fertility.
- H362 May cause harm to breast-fed children
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- 3'-Deoxykanamycin B
- Aktob
- Deoxykanamycin B
- Nebramycin 6
- Nebramycin factor 6
- Nebramycin VI
- Tobi
- Tobralex
- tobramycin
- Tobrex
Frequently asked questions
What is Tobramycin Base used for?
Tobramycin Base is primarily used as an antibiotic to treat bacterial infections, particularly those caused by Gram-negative bacteria like *Pseudomonas aeruginosa*.
What is the chemical formula and molecular weight of Tobramycin Base?
The chemical formula is **C18H37N5O9** and the molecular weight is **467.51 g/mol**.
How should Tobramycin Base be stored?
Store Tobramycin Base between **2 to 8°C** to maintain stability and potency.
What grades or purity levels of Tobramycin Base does Molekula supply?
Molekula supplies Tobramycin Base in **pharmaceutical-grade purity** suitable for research, development, and clinical applications.
Can Molekula supply Tobramycin Base in bulk quantities?
Yes, Molekula can provide Tobramycin Base in bulk, with quantities tailored to meet your specific requirements.
What documentation comes with an order of Tobramycin Base?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, 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.