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240788

Sigma-Aldrich

Isobutyraldehyd

≥99%

Synonym(e):

2-Methylpropanal, 2-Methylpropionaldehyd

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100 ML
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About This Item

Lineare Formel:
(CH3)2CHCHO
CAS-Nummer:
78-84-2
Molekulargewicht:
72.11
Beilstein:
605330
EG-Nummer:
201-149-6
MDL-Nummer:
MFCD00006980
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24854436
NACRES:
NA.22

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Dampfdichte

2.5 (vs air)

Qualitätsniveau

200

Dampfdruck

66 mmHg ( 4.4 °C)

Assay

≥99%

Form

liquid

Selbstzündungstemp.

384 °F

Expl.-Gr.

10 %, 25 °F
2 %, 32 °F

Brechungsindex

n20/D 1.374 (lit.)

bp

63 °C (lit.)

mp (Schmelzpunkt)

−65 °C (lit.)

Löslichkeit

water: soluble 11g/100mL at 20 °C(lit.)
acetone: miscible(lit.)
benzene: miscible(lit.)
carbon disulfide: miscible(lit.)
chloroform: miscible(lit.)
diethyl ether: miscible(lit.)
ethanol: miscible(lit.)
toluene: miscible(lit.)

Dichte

0.79 g/mL at 25 °C (lit.)

Funktionelle Gruppe

aldehyde

Lagertemp.

2-8°C

SMILES String

[H]C(=O)C(C)C

InChI

1S/C4H8O/c1-4(2)3-5/h3-4H,1-2H3

InChIKey

AMIMRNSIRUDHCM-UHFFFAOYSA-N

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Verwandte Kategorien

Allgemeine Beschreibung

Isobutyraldehyde undergoes asymmetric Michael addition reaction with β-nitroalkenes to give quaternary carbon-containing nitroalkanes[1].

Anwendung

Isobutyraldehyde (2-methylpropionaldehyde) was used in the microbial synthesis of isobutanol (2-methylpropan-1-ol)[2].

Piktogramme

FlameExclamation mark
GHS02,GHS07

Signalwort

Danger

H-Sätze

H225,H319

Gefahreneinstufungen

Eye Irrit. 2 - Flam. Liq. 2

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 1

Flammpunkt (°F)

-11.2 °F - closed cup

Flammpunkt (°C)

-24 °C - closed cup

Persönliche Schutzausrüstung

Eyeshields, Faceshields, Gloves

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
SHBR8207
SHBQ8709
SHBR2012
SHBL7886
MKCC6795

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Sigma-Aldrich

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Valeraldehyd 97%

Sigma-Aldrich

110132

Valeraldehyd

Isovaleraldehyd analytical standard

Supelco

61848

Isovaleraldehyd

Butyraldehyd purified by redistillation, ≥99.5%

Sigma-Aldrich

418102

Butyraldehyd

2-Methylbutyraldehyd ≥95%, FG

Sigma-Aldrich

W269107

2-Methylbutyraldehyd

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Journal of biotechnology, 164(2), 188-195 (2012-09-15)
We have determined the X-ray crystal structures of the NADH-dependent alcohol dehydrogenase LlAdhA from Lactococcus lactis and its laboratory-evolved variant LlAdhA(RE1) at 1.9Å and 2.5Å resolution, respectively. LlAdhA(RE1), which contains three amino acid mutations (Y50F, I212T, and L264V), was engineered
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Journal of chromatography. A, 1604, 460467-460467 (2019-08-28)
This paper describes the method validation for the simultaneous determination of seven cysteinylated aldehydes, i.e. 2-substituted 1,3-thiazolidines-4-carboxylic acids, using ultra-high-performance liquid chromatography-mass spectrometry (UHPLC-MS). Authentic reference compounds were first synthesized for identification and quantification purposes. Moreover, nuclear magnetic resonance (1H
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Journal of chromatography. A, 1612, 460647-460647 (2019-11-27)
Aldehydes originating from malt play an important role in beer flavour deterioration. In order to better understand the influence of malting process on beer staling, it is necessary to acquire a reliable analytical methodology for determination of beer staling aldehydes
Rudy Coquet et al.
Physical chemistry chemical physics : PCCP, 9(45), 6040-6046 (2007-11-16)
The formation and catalytic behavior of active structures in a SiO(2)-supported unsaturated Ru complex catalyst for alkene epoxidation were studied by means of hybrid density functional theory (DFT) calculations. An energy-gaining route for the catalyst activation was found to allow
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Journal of agricultural and food chemistry, 50(8), 2385-2391 (2002-04-04)
After vacuum distillation and liquid-liquid extraction, the volatile fractions of dark chocolates were analyzed by gas chromatography-olfactometry and gas chromatography-mass spectrometry. Aroma extract dilution analysis revealed the presence of 33 potent odorants in the neutral/basic fraction. Three of these had
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  1. 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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  2. 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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