Tin(II) 2-ethylhexanoate


Stannous octoate, 2-Ethylhexanoic acid tin(II) salt, Stannous 2-ethylhexanoate
Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level



reaction suitability

core: tin
reagent type: catalyst
reaction type: Ring-Opening Polymerization

refractive index

n20/D 1.493 (lit.)


1.251 g/mL at 25 °C (lit.)

cation traces

Na: ≤0.5%

SMILES string




InChI key


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A catalyst for polylactide polymerization.
Tin(II) 2-ethylhexanoate is commonly used as a catalyst for the ring-opening polymerization of cyclic diesters such as L-lactide and glycolide to form high-molecular-weight polymers.


100, 250 g in glass bottle
1 kg in glass bottle

Signal Word


Hazard Statements


Aquatic Chronic 3 - Eye Dam. 1 - Repr. 2 - Skin Sens. 1


12 - Non Combustible Liquids

WGK Germany


Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is Product S3252, Tin(II) 2-ethylhexanoate, miscible with?

    We would expect this product to be miscible with chloroform at about 50 mg/mL.

  4. What can Product S3252, Tin(II) 2-ethylhexanoate, be used for?

    Tin (II) ethylhexanoate has been shown to catalyze the ring-opening polymerization of diesters to form such biodegradable polymers as poly(L-lactide) and polyglycolide. Additional examples of how this catalyst can be used can be found on the datasheets; there are links to these documents on the product detail pages for 686603, 686581 and 686573 on our website, www.sigmaaldrich.com.

  5. What is the expected shelf life of Product S3252, Tin(II) 2-ethylhexanoate?

    Per the specification sheet and certificate of analysis, this product is currently assigned a recommended retest period of two years.

  6. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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