SKU: 57499168419

SFX-2,7-DDPA

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Description

SFX-2,7-DDPAProduct Name NameSFX 2,7 DDPA Product Overview Spiroaromatic hydrocarbons are an important organic semiconductor construction unit. Their unique non planar spiroconjugation, cross conformation and steric hindrance effects can effectively improve the photoelectric properties and device stability of organic semiconductor materials. Spirofluorene xanthrene (SFX) one pan preparation method due to its advantages of three bonds, high efficiency and fast,

Product Name

Name:SFX-2,7-DDPA

Product Overview

Spiroaromatic hydrocarbons are an important organic semiconductor construction unit. Their unique non-planar spiroconjugation, cross conformation and steric hindrance effects can effectively improve the photoelectric properties and device stability of organic semiconductor materials. Spirofluorene xanthrene (SFX) one-pan preparation method due to its advantages of three bonds, high efficiency and fast, overcome the problems of lengthy synthesis route and expensive raw materials, and become a new generation of steric resistance construction unit, which has been widely used in frontier fields such as organic luminescence, organic laser, field effect transistor, perovskite solar cells, etc. It has become a model of green organic semiconductors. Due to the connection of spirofluorene and oxanthracene, the conjugated system of the entire molecule is extended, and the electrons can delocalize in a larger range, which has an important impact on its optical and electrical properties. Spirofluorenoxanthracene molecule has certain steric hindrance. The helical structure of spirofluorene and the large volume of oxanthracene make the molecules exhibit a specific arrangement in space. This steric hindrance affects the interactions between molecules and the way materials are stacked. For example, in crystal structures, molecules may adopt specific orientations that affect properties such as optical anisotropy of the material.

Technical Parameter

C:.5mg/ml

Solvent:Water

Appearance:Colourless liquid

Product Features

Optical properties: It has unique luminous characteristics. Due to its extended conjugated system, its absorption and emission spectra differ from those of spirofluorene or oxanthrene alone. Generally, it has a strong absorption in the ultraviolet to visible region, and the emission spectrum covers a certain range of visible wavelengths. For example, its emission wavelength may range from blue to yellow-green, depending on factors such as the structure of the molecule and substituents.

The fluorescence quantum yield is relatively high. Compared with some common organic luminescent materials, the fluorescence quantum yield of spirofluorexanthrene can reach a higher level, which makes it have a potential application in the field of luminescence. For example, in some cases, its fluorescence quantum yield can exceed 30%, which can effectively convert absorbed energy into light energy emitted.

Electrical properties: As an organic semiconductor material, spirofluorenoxanthrene has a certain carrier transport capacity. Conjugated systems in its molecular structure contribute to the transport of electrons and holes. Electrical properties such as carrier mobility can be adjusted through appropriate molecular design and material treatment. For example, by introducing suitable substituents to improve the packing mode of molecules and charge transport channels, the carrier mobility is increased. The energy band structure can also be regulated. The band gap can be adjusted by chemical modification, such as changing the type and position of substituents. This is very important for its application in different optoelectronic devices, enabling it to adapt to different operating conditions and performance requirements.

Application Fields

Organic light-emitting diode (OLED) : Because of its good luminous performance, spirofluorexanthrene can be used as the luminous material of OLED. It can be used in the light-emitting layer of OLeds by doping or as the main material.

Organic field effect transistor (OFET) : As an organic semiconductor material, spirofluorexanthrene can be used to prepare the active layer of OFET. The properties of OFET, such as carrier mobility and switching ratio, can be improved by optimizing its molecular structure and film preparation process.

Bioimaging and sensing: The fluorescence properties of spirofluorexanthrene make it potentially useful in bioimaging and sensing. It can be used as a fluorescent probe to label biomolecules or cells, and observe physiological and pathological processes in organisms through fluorescence imaging technology.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 57499168419

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My dog absolutely loves these balls, I have a few more I had already bought, but she has an addiction to them so I had to buy more. I am able to squeeze these really easily so when she does pick them up after I’ve thrown them they’re very easy for her to pick up. They have a good thickness to them so it’s not too flimsy. It’s pretty tough and they bounce pretty high which I like and so does she know she is an aggressive chewer, but I haven’t had an issue yet with her chewing right through these, which is why I like them and we both love the fact that it smells like beef I could practically smell them through the bag, but I have a really high pitched sense of smell, and I knew she was going to love them. Not to mention you can’t beat the price.
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Reviewed in the United States on November 14, 2025
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Jay H. Fine
Battle Creek, US
★★★★★ 5
Love These Balls
Color: H) 2.5" 3-Pack (Beef), Color: H) 2.5" 3-Pack (Beef)
These are great balls. My Border Collie can destroy a tennis ball in a couple of hours and the Kong brand ball is heavier than I like to play with in the house. These balls hold up to her biting and chewing but are lite weight and softer for bouncing off the walls.
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Reviewed in the United States on May 7, 2026
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JEN
Dallas, US
★★★★★ 3
Seems durable - but the scent is not the best
Color: B) 3" 2-Pack (Bacon)
I don't know if I'd call the scent of this "bacon," more like rubber with a hint of bacon. It's very strong. I gave my dog one of the balls & put one in a cabinet where I keep his treats & a few other unrelated odds & ends. I now hold my breath when I open that cabinet b/c good lord, the smell. I'm tempted to just give that one to the dog too, just because it'll air out eventually & then everything else in that cabinet won't smell bad. My dog feels so-so about it. He'll briefly chase after it & chew on it, but loses interest in it pretty fast. My rather hyperactive cat also plays with it from time to time, as he seems to have more interest in most dog toys than the dog these days, so there's that. (Then again, he thinks a wide variety of random items around the house are loads of fun to toss about, so it's possible his opinion is to be taken with a grain of salt. Between the brief periods of one of these balls being chewed on & clawed at, it's stayed completely intact. I think if you have a dog who simply likes to play fetch or chew on rubber balls in general, this one would stand up to the task. But if you're expecting it to be greeted with the enthusiasm as a bacon grease covered ball might be - I'd adjust your expectations.
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Reviewed in the United States on February 19, 2023
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SAM
Waukegan, US
★★★★★ 5
My dogs favorite toy so far in two years
Color: C) 4" 2-Pack (Bacon)
I use this with my medium sized dog. These are large for him but that's what I want so I don't ever have to think about them being too small or a swallow hazard. He has been through A LOT OF TOYS in the last couple years, but nothing, NOTHING has he loved as much as these. His favorite used to be squeaker balls. Then his favorite was crackle balls. But he will gladly ignore both for this one. I don't know if it's the bacon flavor or what, but he go nuts for it.
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