Isovaleric acid, butyl ester

Synonyms CAS 109-19-3 isovaleric acid, butyl ester n-eUTYL ISOPENTANOATE BUTYL-3-METHYLBUTYRATE n-Butyl Lactate... 

Synonyms n-Butyl isopentanoate 1-Butyl isovalerate Butyl isovalerianate Butyl 3-methylbutanoate Butyl 3-methyl butyrate Isovaleric acid butyl ester 3-Methylbutanoic acid, butyl ester Empirical C9H18O2... 

Isovaleric acid butyl ester. See n-Butyl isovalerate... 

Fig. 3.2.5 Profiles of acylcarnitines as their butyl esters in plasma (precursor of m/z 85 scan) of a normal control (a) and patients with various organic acidemias. Propionylcarnitine (C> m/z 274 peak 3) is the primary marker for both propionic acidemia (b) and methylmalonic acidemias (c). Note that an elevation of methylmalonylcarnitine (C4-UC m/z 374) is not typically found in patients with methylmalonic acidemias. In the three cases of ethylmalonic encephalopathy (d) analyzed in our laboratory, elevations of ,- (m/z 288 peak 4) and C5-acylcarnitine (m/z 302 peak 5) species were noted. Isolated C5-acylcarnitine elevations are encountered in patients with isovaleric acidemia (e), where it represents isovalerylcarnitine. Cs-Acylcarnitine is also elevated in patients with short/branched chain acyl-CoA dehydrogenase deficiency, where it represents 2-methylbutyrylcarnitine (see Fig. 3.2.4), and in patients treated with antibiotics that contain pivalic acid, where it represents pivaloylcarnitine [20, 59, 60]. Patients with /3-ketothio-lase deficiency (f) present with elevations of tiglylcarnitine (C5 i m/z 300 peak 6) and C5-OH acylcarnitine (m/z 318 peak 7). In most cases of 3-methylcrotonyl-CoA carboxylase deficiency (g) Cs-OH acylcarnitine is the only abnormal acylcarnitine species present. The differential diagnosis of C5-OH acylcarnitine elevations includes eight different conditions (Table 3.2.1). Also note that C5-OH acylcarnitine represents 3-hydroxy isovalerylcarnitine in 3-methylcrotonyl-CoA carboxylase deficiency (g), and 2-methyl 3-hydroxy butyrylcarnitine in / -ketothiolase deficiency...

Butanoic acid, 3-methyl-, butyl ester butyl isovalerate 172a 174a, 174b, 603, 3370... 

Bomyl butyrate Bornyl formate Bomyl isovalerate Bornyl valerate p-Bourbonene 2-Butanol Butan-3-one-2-yl butyrate Butter acids Butter esters n-Butyl acetate Butyl acetoacetate Butyl alcohol n-Butylamine Butyl anthranilate Butyl butyrate Butyl butyryl lactate a-Butylcinnamaldehyde Butyl cinnamate Butyl 2-decenoate Butyl ethyl malonate... 

Benzyl tiglate Benzyl valerate Bicycle [2.2.2]-5-octene-2-carboxylic acid, 1(or 4)-methyl-4(or 1)-(1-methylethyl) methyl ester Bicyclopentylone Bicyclopentylyl butenoate y-Bisabolene Bitter almond (Prunus amybdalus) extract L-Borneol L-Bornyl acetate Bornyl isovalerate Bromo-D-camphor B-Bromostyrene Buchu leaves oil Butanol, 2-methyl-4-(2,2,3-trimethyl-3-cyclopentenyl)- p-t-Butyl acetophenone... 

Important components of hard cheeses (Gouda type) include some carboxylic acid esters (ethyl butanoate, ethyl hexanoate), as well as carboxylic acids (acetic, butyric, isobutyric, valeric, isovaleric, 2-methylbutyric and caproic acids). Cheeses manufactured using bacteria of the genus Propionibacterium (such as Emmental and Gruyere) contain propionic acid and other lower fatty acids, methyl thioacetate, some oxocarboxylic acids, various alcohols, esters (such as ethyl butanoate), lactones (such as 8-decalactone), amines and other basic compounds (also skatole in addition to aliphatic amines), alkylpyrazines (e.g. 2-sec-butyl-3-methoxypyrazine), 4-hydroxy-2,5-dimethyl-2H-furan-3-one (furaneol), 2-ethyl-4-hydroxy-5-methyl-2H-furan-3-one (homofuraneol) and a range of other compounds. 

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