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S3252

Sigma-Aldrich

Tin(II) 2-ethylhexanoate

92.5-100.0%

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Synonym(s):
2-Ethylhexanoic acid tin(II) salt, Stannous 2-ethylhexanoate, Stannous octoate
Linear Formula:
[CH3(CH2)3CH(C2H5)CO2]2Sn
CAS Number:
301-10-0
Molecular Weight:
405.12
EC Number:
206-108-6
MDL number:
MFCD00002676
PubChem Substance ID:
57654612
NACRES:
NA.22

Assay

92.5-100.0%

reaction suitability

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

refractive index

n20/D 1.493 (lit.)

density

1.251 g/mL at 25 °C (lit.)

cation traces

Na: ≤0.5%

SMILES string

CCCCC(CC)C(=O)O[SnH2]OC(=O)C(CC)CCCC

InChI

1S/2C8H16O2.Sn/c2*1-3-5-6-7(4-2)8(9)10;/h2*7H,3-6H2,1-2H3,(H,9,10);/q;;+2/p-2

InChI key

KSBAEPSJVUENNK-UHFFFAOYSA-L

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Application

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.

Signal Word

Danger

Hazard Classifications

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

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Flash Point(F)

278.6 °F - closed cup

Flash Point(C)

137 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

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  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.

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