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441791

Sigma-Aldrich

Tris(2,4-di-tert-butylphenyl) phosphite

Synonym(s):

2,4-Bis(1,1-dimethylethyl)phenol phosphite (3:1), Tri(2,4-di-tert -butylphenyl) phosphite, Tri(2,4-di-t -butylphenyl) phosphite

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About This Item

Linear Formula:
[[(CH3)3C]2C6H3O]3P
CAS Number:
31570-04-4
Molecular Weight:
646.92
EC Number:
250-709-6
MDL number:
MFCD00072706
UNSPSC Code:
12162002
PubChem Substance ID:
24867703
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

200

mp

181-184 °C (lit.)

SMILES string

CC(C)(C)c1ccc(OP(Oc2ccc(cc2C(C)(C)C)C(C)(C)C)Oc3ccc(cc3C(C)(C)C)C(C)(C)C)c(c1)C(C)(C)C

InChI

1S/C42H63O3P/c1-37(2,3)28-19-22-34(31(25-28)40(10,11)12)43-46(44-35-23-20-29(38(4,5)6)26-32(35)41(13,14)15)45-36-24-21-30(39(7,8)9)27-33(36)42(16,17)18/h19-27H,1-18H3

InChI key

JKIJEFPNVSHHEI-UHFFFAOYSA-N

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General description

Tris(2,4-di-tert-butylphenyl) phosphite is a triaryl based phosphite that can be used in catalysis and metallation. Its characteristic to undergo metallation reaction and provide a cost effective synthetic processes allows it to be useful in biaryl coupling reactions.[1][2]

Application

It may be used as a chain extender and a processing stabilizer that facilitate the production of stable polymeric materials, which include polylactic acid (PLA), polyolefins, etc.[3][4]

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000355733
0000358481
0000323970
0000246236
0000323970

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Study of the high temperature reactions of a hindered aryl phosphite (Hostanox PAR 24) used as a processing stabiliser in polyolefins.
Kriston I, et al.
Polymer Degradation and Stability, 95(9), 1883-1893 (2010)
Orthopalladated triaryl phosphite complexes as highly active catalysts in biaryl coupling reactions.
Albisson DA, et al.
Chemical Communications (Cambridge, England), 19, 2095-2096 (1998)
Orthopalladated triarylphosphite complexes as highly efficient catalysts in the Heck reaction.
Albisson DA
Tetrahedron Letters, 39(52), 9793-9796 (1998)
Ebru Oral et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 32(6), 757-761 (2014-02-19)
Antioxidant stabilization of radiation cross-linked ultrahigh molecular weight polyethylene (UHMWPE) has been introduced to improve the oxidative stability of total joint implant bearing surfaces. Blending of an antioxidant with UHMWPE resin powder followed by consolidation and radiation cross-linking has been
Structure effect of phosphite on the chain extension in PLA.
Meng X, et al.
Polymer Degradation and Stability, 120(52), 283-289 (2015)
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Questions

1–3 of 3 Questions  

  1. May I know the purity of this item?

    1 answer

    1. The purity of this product is not determined.

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

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    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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  3. 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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