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850608

Sigma-Aldrich

Diphenyl phosphate

99%

Synonym(s):

Diphenyl hydrogen phosphate

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About This Item

Linear Formula:
(C6H5O)2P(O)OH
CAS Number:
838-85-7
Molecular Weight:
250.19
Beilstein:
1379164
EC Number:
212-657-2
MDL number:
MFCD00003033
UNSPSC Code:
12352100
PubChem Substance ID:
24888299
NACRES:
NA.22
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Assay

99%

form

crystals

mp

62-66 °C (lit.)

functional group

phosphate

SMILES string

OP(=O)(Oc1ccccc1)Oc2ccccc2

InChI

1S/C12H11O4P/c13-17(14,15-11-7-3-1-4-8-11)16-12-9-5-2-6-10-12/h1-10H,(H,13,14)

InChI key

ASMQGLCHMVWBQR-UHFFFAOYSA-N

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Application

Diphenyl phosphate can be used as an organic catalyst for the ring-opening polymerization (ROP) of renewable 5-alkyl δ-lactones.[1] In combination with zinc iodide, it forms a novel initiating system for the living cationic polymerization of isobutyl vinyl ether.[2]

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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
WXBF1075V
WXBD8627V
WXBD6040V
MKCB3836
WXBD4499V

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Living cationic polymerization of isobutyl vinyl ether by the diphenyl phosphate/zinc iodide initiating system.
Sawamoto M, et al.
Polym. Bull., 20(5), 407-412 (1988)
Xiao Yan et al.
Chemosphere, 200, 569-575 (2018-03-06)
Urinary metabolites of phosphate flame retardants (PFRs) were determined in workers from an electronic waste (e-waste) recycling site and an incineration plant, in order to assess the PFR exposure risks of workers occupied with e-waste recycling and incineration. Bis(2-chloroethyl) phosphate
Shamil R Saitov et al.
Polymers, 11(6) (2019-05-31)
Electrical, photoelectrical, and optical properties of thin films of a new heat-resistant polyphenylquinoline synthesized using facile methods were investigated. An analysis of the obtained temperature dependences of the dark conductivity and photoconductivity indicates the hopping mechanism of conductivity over localized
Michiel Bastiaensen et al.
Environment international, 146, 106147-106147 (2020-11-03)
Exposure to organophosphate flame retardants and plasticizers (PFRs) is commonly estimated by measuring biomarker concentrations in spot urine samples. However, their concentrations in urine can vary greatly over time due to short biological half-lives and variable exposure, potentially leading to
Maria K Björnsdotter et al.
Environment international, 112, 59-67 (2017-12-22)
Phosphate flame retardants (PFRs) are ubiquitous chemicals in the indoor environment. Diphenyl phosphate (DPHP) is a major metabolite and a common biomarker of aryl-PFRs. Since it is used as a chemical additive and it is a common impurity of aryl-PFRs
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Questions

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  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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