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220159

Sigma-Aldrich

2,3-Dimethyl-2-butene

≥99%

Sinonimo/i:

Tetramethylethylene

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25 ML
181,00 €
100 ML
614,00 €

181,00 €

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25 ML
181,00 €
100 ML
614,00 €

About This Item

Formula condensata:
(CH3)2C=C(CH3)2
Numero CAS:
563-79-1
Peso molecolare:
84.16
Beilstein:
1361357
Numero CE:
209-263-8
Numero MDL:
MFCD00008897
Codice UNSPSC:
12352100
ID PubChem:
24853167
NACRES:
NA.22

181,00 €

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Tensione di vapore

215 mmHg ( 37.7 °C)

Saggio

≥99%

Stato

liquid

Temp. autoaccensione

754 °F

Indice di rifrazione

n20/D 1.412 (lit.)

P. ebollizione

73 °C (lit.)

Punto di fusione

−75 °C (lit.)

Densità

0.708 g/mL at 25 °C (lit.)

Temperatura di conservazione

2-8°C

Stringa SMILE

C\C(C)=C(\C)C

InChI

1S/C6H12/c1-5(2)6(3)4/h1-4H3
WGLLSSPDPJPLOR-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

2,3-Dimethyl-2-butene undergoes ozonolysis in dark to yield hydroxyl radical[1]. Reaction of ozone with 2,3-dimethyl 2-butene (DMB) has been investigated using a flow-tube interfaced to UV photoelectron spectrometer[2]. DMB forms adduct with thianthrene cation radical tetrafluoroborate at 0°C and -15°C[3].

Applicazioni

2,3-Dimethyl-2-butene was employed as substrate in photoinduced molecular transformations involving 2-hydroxy-1,4-naphthoquinones[4].

Accessorio

N° Catalogo
Descrizione
Determinazione del prezzo

Pittogrammi

FlameHealth hazard
GHS02,GHS08

Avvertenze

Danger

Indicazioni di pericolo

H225,H304

Consigli di prudenza

P210 - P301 + P310 + P331

Classi di pericolo

Asp. Tox. 1 - Flam. Liq. 2

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

17.6 °F - closed cup

Punto d’infiammabilità (°C)

-8 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
SHBR8100
SHBN6703
SHBL0062
SHBH5043V
SHBH1200V

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Sigma-Aldrich

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3-Methyl-2-pentene, mixture of cis and trans

2-Methyl-2-butene ≥95.0% (GC)

Sigma-Aldrich

86262

2-Methyl-2-butene

The Journal of Organic Chemistry, 58, 4614-4614 (1993)
Bing-Jun Zhao et al.
The Journal of organic chemistry, 71(10), 3737-3742 (2006-05-06)
Thianthrene cation radical tetrafluoroborate (Th*+ BF4-) has been found to add to 2,3-dimethyl-2-butene (DMB) at 0 degrees C and -15 degrees C. The adduct, 2,3-dimethyl-2,3-(5,10-thianthreniumdiyl)butane ditetrafluoroborate (12), was isolated at -15 degrees C, and its 1H NMR spectrum was recorded
Maryline Pflieger et al.
Environmental science & technology, 47(12), 6239-6246 (2013-05-15)
In order to investigate the heterogeneous oxidation kinetics of the herbicide terbuthylazine (TERB), a stable and reproducible generation system of "dark" hydroxyl radical in the gas phase was developed and optimized using a PTR-MS. TERB was adsorbed on silica particles
Bert F Sels et al.
Journal of the American Chemical Society, 129(21), 6916-6926 (2007-05-10)
A heterogeneous catalyst containing MoO42- exchanged on layered double hydroxides (Mo-LDHs) is used to produce 1O2 from H2O2, and with this dark 1O2, unsaturated hydrocarbons are oxidized in allylic peroxides. The oxidation kinetics are studied in detail and are compared
P Di Mascio et al.
Free radical biology & medicine, 12(6), 471-478 (1992-01-01)
Ultraweak chemiluminescence arising from lipoperoxidation has been attributed by several authors to the radiative deactivation of singlet oxygen and triplet carbonyl products. The latter emitters have been suggested to come from annihilation of RO. and ROO. radicals as well as
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Domande

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

    1 risposta

    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

      Utile?

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

    1 risposta

    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

      Utile?

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