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291234

Sigma-Aldrich

Dibutyltin dilaurate

95%

Sinônimo(s):

DBTDL

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5 G
R$ 242,00
25 G
R$ 289,00
100 G
R$ 333,00
500 G
R$ 916,00
2 KG
R$ 3.007,00

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5 G
R$ 242,00
25 G
R$ 289,00
100 G
R$ 333,00
500 G
R$ 916,00
2 KG
R$ 3.007,00

About This Item

Fórmula linear:
(CH3CH2CH2CH2)2Sn[OCO(CH2)10CH3]2
Número CAS:
77-58-7
Peso molecular:
631.56
Beilstein:
4156980
Número CE:
201-039-8
Número MDL:
MFCD00008963
Código UNSPSC:
12352103
ID de substância PubChem:
24857520
NACRES:
NA.22

R$ 242,00

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pressão de vapor

0.2 mmHg ( 160 °C)

Nível de qualidade

200

Ensaio

95%

índice de refração

n20/D 1.471 (lit.)

densidade

1.066 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC

InChI

1S/2C12H24O2.2C4H9.Sn/c2*1-2-3-4-5-6-7-8-9-10-11-12(13)14;2*1-3-4-2;/h2*2-11H2,1H3,(H,13,14);2*1,3-4H2,2H3;/q;;;;+2/p-2

chave InChI

UKLDJPRMSDWDSL-UHFFFAOYSA-L

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Descrição geral

Dibutyltin dilaurate, also known as dibutyltin didodecanoate, is a dibutyltin laurate hydroxide intermediate that is commonly used as a catalyst. It is also used in the transesterification reaction. [1]

Aplicação

Dibutyltin dilaurate is used as a catalyst in:
  • The synthesis of polyurethane (PU) and polyhydroxyurethane (PHU) prepolymers and lignin urethane. [2] [3]
  • A protocol for the covalent attachment of poly(ethylene glycol) (PEG) to silicon oxide to form a hydrophilic non-fouling surface.[4]
  • Preparation of polymers by reacting hydroxyl-terminated macromonomers and aliphatic diisocyanates.[5][6][7][8]

Palavra indicadora

Danger

Classificações de perigo

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Muta. 2 - Repr. 1B - Skin Sens. 1 - STOT RE 1 - STOT SE 1

Órgãos-alvo

thymus, thymus,Immune system

Código de classe de armazenamento

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

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

372.2 - 379.4 °F - closed cup

Ponto de fulgor (°C)

189 - 193 °C - closed cup

Equipamento de proteção individual

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificados de análise (COA)

Lot/Batch Number
MKCW5388
MKCV5422
MKCV5359
MKBD7808V
MKBD7808

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Zengping Liu et al.
Nature biomedical engineering, 3(8), 598-610 (2019-04-10)
Internal-tamponade agents are crucial surgical adjuncts in vitreoretinal surgery. Clinically used endotamponade agents act through buoyancy forces, yet can result in prolonged post-operative positioning, temporary loss of vision, raised intra-ocular pressure, cataract formation or the need for additional removal surgery.
Self-assembled supramolecular hydrogels formed by biodegradable PEO?PHB?PEO triblock copolymers and ?-cyclodextrin for controlled drug delivery.
Li J
Biomaterials, 27(22), 4132-4140 (2006)
Controlled tin catalyzed hydrolysis of 3-acryloxypropyltrimethoxysilane with mono-and multi-functional mercaptans
RS B,et al.
Journal of Organometallic Chemistry, 724, 213-224 (2013)
Catalytic mechanisms of triphenyl bismuth, dibutyltin dilaurate, and their combination in polyurethane?forming reaction.
Luo S
Journal of Applied Polymer Science, 65(6), 1217-1225 (1997)
Jiaqing Xiong et al.
Science advances, 6(29), eabb4246-eabb4246 (2020-08-25)
A previously unknown gas-solid interacted power generation is developed using triboelectric effect. We designed an adhesive, gas-tight, and self-healing supramolecular polysiloxane-dimethylglyoxime-based polyurethane (PDPU) porous elastomer based on segmented oxime-carbamate-urea. It is an intrinsically triboelectric negative material with trapped air within
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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. What is the concentration of item 291234?

    1 answer

    1. The concentration (Molarity) of item 291234 can be calculated using the formula: Density x Volume x Concentration / Molecular weight = Molarity. For example, if the density is 1.066g, the volume is 1000, and the molecular weight is 631.59, the resulting molarity would be 1.69M.

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