Molekula
Dibutyltin Oxide
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
Dibutyltin Oxide is an organotin compound primarily used as a catalyst in polymer production, particularly in PVC processing, and as a stabilizer in plastics to enhance durability and heat resistance. It also serves in biocidal applications and as a precursor for other organotin derivatives. This chemical has a CAS number of 818-08-6, with the molecular formula (CH3CH2CH2CH2)2SnO and a molecular weight of 248.94. It should be stored at ambient conditions, with a signal word of *Danger* indicating its hazardous nature. Molekula supplies Dibutyltin Oxide 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | white fine powder |
| Assay | min 98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 105 °C |
| Boiling Point | 161.9 °C |
| Density | 1.5 (relative, water = 1) |
| Vapour Pressure | 0.000004 Pa at 25 °C |
Source: PubChem CID 61221 (ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 89994898 |
| CAS Number | 818-08-6 |
| IUPAC Name | dibutyl(oxo)tin |
| EC Number | 212-449-1 |
| Molecular Formula | (CH3CH2CH2CH2)2SnO |
| Molecular Weight | 248.94 |
| Exact Mass | 250.038 |
| SMILES | CCCC[Sn](=O)CCCC |
| InChIKey | JGFBRKRYDCGYKD-UHFFFAOYSA-N |
| InChI | InChI=1S/2C4H9.O.Sn/c2*1-3-4-2;;/h2*1,3-4H2,2H3;; |
| PubChem CID | 61221 |
| UN Number | UN3146 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29319000 |
| Tariff Code | 2931900090 |
Safety & GHS
-
Corrosive
GHS05
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
Hazard statements
- H301 Toxic if swallowed
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H341 Suspected of causing genetic defects
- H360FD May damage fertility. May damage the unborn child.
- H372 Causes damage to organs through prolonged or repeated exposure
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P310 Immediately call a POISON CENTER or doctor/physician
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
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
- DI-N-BUTYLTIN OXIDE
- Dibutyloxide of tin
- Dibutyloxostannane
- Dibutyloxotin
- Dibutylstannane oxide
- dibutylstannanone
- Dibutylstannium oxide
- Dibutyltin(IV) oxide
- Stannane, dibutyloxo-
- Tin, dibutyl-, oxide
Frequently asked questions
What is Dibutyltin Oxide primarily used for?
Dibutyltin Oxide is commonly used as a catalyst in the production of polyurethane foams, as a stabilizer in PVC, and in organic synthesis for transesterification reactions.
What is the chemical formula and molecular weight of Dibutyltin Oxide?
The chemical formula is **(CH₃CH₂CH₂CH₂)₂SnO**, and the molecular weight is **248.94 g/mol**.
How should Dibutyltin Oxide be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture, heat, and incompatible materials.
What purity grades or specifications are available for Dibutyltin Oxide?
We supply **technical-grade Dibutyltin Oxide** with a minimum purity of **98%**, suitable for industrial applications.
Can Molekula supply Dibutyltin Oxide in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 1 kg, 5 kg, 25 kg drums) for large-scale industrial needs.
What documentation is provided with an order of Dibutyltin Oxide?
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.