88-09-5 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 88-09-5 differently. You can refer to the following data:
1. clear colorless to light yellow liquid
2. 2-Ethylbutyric acid has a rancid, oily-fruity, acidulous odor
Occurrence
Reported found in guava fruit, wheaten bread and cheeses (Parmesan, blue, cheddar, provolone, Romano and
goat), apple, banana, grape, melon, papaya, peach, pineapple and more.
Uses
Different sources of media describe the Uses of 88-09-5 differently. You can refer to the following data:
1. 2-Ethylbutyric acid is used as the internal standard for determining volatile fatty acids (VFAs) in wastewater from the constructed wetlands. It is used in the determination of both free and fatty acids in milk and milk products by HPLC method with direct derivatisation.
2. 2-Ethylbutyric Acid is a flavoring agent that is a clear liquid, color-
less, with a rancid odor. it is miscible in alcohol and ether, sparingly
soluble in water, and is obtained by chemical synthesis.
3. Ester formation; intermediate for drugs,
dyestuffs, chemicals; flavoring.
Preparation
By catalytic oxidation of diethylacetaldehyde or by decarboxylation of diethylmalonic acid.
Aroma threshold values
Detection: 15 to 600 ppb
Taste threshold values
Taste characteristics at 35 ppm: acidic, fruity, tropical with a creamy aftertaste.
Safety Profile
Moderately toxic by
ingestion and skin contact. An irritant to
skin and mucous membranes. A severe eye
irritant. See also ESTERS. Narcotic in high
concentrations. Flammable liquid. To fight
fire, use CO2, dry chemical, alcohol foam.
When heated to decomposition it emits
acrid smoke and fumes.
Check Digit Verification of cas no
The CAS Registry Mumber 88-09-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 88-09:
(4*8)+(3*8)+(2*0)+(1*9)=65
65 % 10 = 5
So 88-09-5 is a valid CAS Registry Number.
InChI:InChI=1/C6H12O2/c1-3-5(4-2)6(7)8/h5H,3-4H2,1-2H3,(H,7,8)/p-1
88-09-5Relevant articles and documents
Ruthenium-catalysed hydroxycarbonylation of olefins
Dühren, Ricarda,Kucmierczyk, Peter,Jackstell, Ralf,Franke, Robert,Beller, Matthias
, p. 2026 - 2030 (2021/04/09)
State-of-the-art catalyst systems for hydroxy- and alkoxycarbonylations of olefins make use of palladium complexes. In this work, we report a complementary ruthenium-catalysed hydroxycarbonylation of olefins applying an inexpensive Ru-precursor (Ru3(CO)12) and PCy3as a ligand. Crucial for the success of this transformation is the use of hexafluoroisopropanol (HFIP) as the solvent in the presence of an acid co-catalyst (PTSA). Overall, moderate to good yields are obtained using aliphatic olefins including the industrially relevant substrate di-isobutene. This atom-efficient catalytic transformation provides straightforward access to various carboxylic acids from unfunctionalized olefins.
COMPOUNDS AND USES
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Page/Page column 21, (2019/11/04)
The invention relates to novel compounds (I), the use of compounds in eliciting a pro-Th17 immune response and related aspects. Further provided are methods of production of said compounds (I).
Organocatalyzed Aerobic Oxidation of Aldehydes to Acids
Dai, Peng-Fei,Qu, Jian-Ping,Kang, Yan-Biao
supporting information, p. 1393 - 1396 (2019/02/26)
The first example organocatalyzed aerobic oxidation of aldehydes to carboxylic acids in both organic solvent and water under mild conditions is developed. As low as 5 mol % N-hydroxyphthalimide was used as the organocatalyst, and molecular O2 was used as the sole oxidant. No transition metals or hazardous oxidants or cocatalysts were involved. A wide range of carboxylic acids bearing diverse functional groups were obtained from aldehydes, even from alcohols, in high yields.