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196118

Sigma-Aldrich

2,2-Dimethoxy-2-phenylacetophenone

99%

Synonym(s):

α,α-Dimethoxy-α-phenylacetophenone, Benzil α,α-dimethyl acetal

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250 G
£216.00

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50 G
£64.20
250 G
£216.00

About This Item

Linear Formula:
C6H5COC(OCH3)2C6H5
CAS Number:
Molecular Weight:
256.30
Beilstein:
2054295
EC Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

£64.20


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Request a Bulk Order

Quality Level

Assay

99%

mp

67-70 °C (lit.)

SMILES string

COC(OC)(C(=O)c1ccccc1)c2ccccc2

InChI

1S/C16H16O3/c1-18-16(19-2,14-11-7-4-8-12-14)15(17)13-9-5-3-6-10-13/h3-12H,1-2H3

InChI key

KWVGIHKZDCUPEU-UHFFFAOYSA-N

Gene Information

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Application

2,2-Dimethoxy-2-phenylacetophenone (DMPA) can be used as a photoinitiator:
  • For the photopolymerization of methacrylate monomers in thick sections(~2mm).
  • In the preparation of UV-curing silicone rubber with excellent mechanical properties and thermal stability via thiol-ene reaction.
It can also be used as a starting material to prepare a water-soluble supramolecular-structured photoinitiator which is more efficient than DMPA.

Pictograms

Health hazardExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - STOT RE 2

Target Organs

oral cavity

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

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)

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Franziska D Zitzmann et al.
Lab on a chip, 17(24), 4294-4302 (2017-11-10)
Lab-on-a-chip devices that combine, e.g. chemical synthesis with integrated on-chip analytics and multi-compartment organ-on-a-chip approaches, are a fast and attractive evolving research area. While integration of appropriate cell models in microfluidic setups for monitoring the biological activity of synthesis products
Haisong Lin et al.
Nature communications, 11(1), 4405-4405 (2020-09-04)
Active biofluid management is central to the realization of wearable bioanalytical platforms that are poised to autonomously provide frequent, real-time, and accurate measures of biomarkers in epidermally-retrievable biofluids (e.g., sweat). Accordingly, here, a programmable epidermal microfluidic valving system is devised
Marta Goliszek et al.
Polymers, 12(5) (2020-05-23)
The preparation and the thermal and mechanical characteristics of lignin-containing polymer biocomposites were studied. Bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BPA.GDA) was used as the main monomer, and butyl acrylate (BA), 2-ethylhexyl acrylate (EHA) or styrene (St) was used as
Henrike Niederholtmeyer et al.
Nature communications, 9(1), 5027-5027 (2018-11-30)
Cells in tissues or biofilms communicate with one another through chemical and mechanical signals to coordinate collective behaviors. Non-living cell mimics provide simplified models of natural systems; however, it has remained challenging to implement communication capabilities comparable to living cells.
Xiuzhong Zhu et al.
Polymers, 11(5) (2019-05-19)
In this study, a new pH-tunable thermoresponsive hydroxyl-terminated hyperbranched polyether (HTHP 2) was successfully prepared via a one-pot cationic polymerization technique and postmodification. In the first step, hydroxyl-terminated hyperbranched polyether containing double bonds (HTHP 1) were synthesized. Then, through thiol-ene

Articles

With dentists placing nearly 100 million dental fillings into patients′ teeth annually in the U.S. alone, polymeric composite restoratives account for a very large share of the biomaterials market.

Questions

1–4 of 4 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

      Helpful?

  3. What is the density of 196118-50G, specifically 2,2-DIMETHOXY-2-PHENYLACETOPHENONE, 99%?

    1 answer
    1. The density of 2,2-DIMETHOXY-2-PHENYLACETOPHENONE, 99% (196118-50G) is 1.1320 g/cm³.

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  4. What UV wavelength, amps, power, frequency, etc can I use with this?

    1 answer
    1. The UV wavelength, amps, power, and frequency are unrecorded for this product.

      For photoinitiation to proceed efficiently, the absorption bands of the photoinitiator must overlap with the emission
      spectrum of the source and there must be minimal competing absorption by the components of the formulation
      at the wavelengths corresponding to photoinitiator excitation. The following research article describes an application using this product in the photopolymerization of methacrylate monomers in thick sections which may be helpful.

      https://www.researchgate.net/publication/264681050_Efficiency_of_22-Dimethoxy-2-phenylacetophenone_for_the_Photopolymerization_of_Methacrylate_Monomers_in_Thick_Sections"

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