Noun:

இலற்றோசு,

lactone's Usage Examples:

- The cyanhydrins on hydrolysis give monocarboxylic acids, which yield lactones; these compounds when reduced by sodium amalgam in sulphuric acid solution yield a sugar containing one more carbon atom.

The progestin in Yasmin is similar to spironolactone, a drug that works on the kidneys.

Potentially allergenic sesquiterpene lactones have been isolated from this species.

it is transformed into quinide, probably a lactone, which on heating with baryta water gives an inactive quinic acid.

The cyanhydrin is hydrolysable to an acid, the lactone of which may be reduced by sodium amalgam to a glucoheptose, a non-fermentable sugar containing seven carbon atoms.

Alternatively a macrocyclic lactone can be used to treat for scab and will also be part of the strategy to remove resistant worms.

Other drugs (for example, spironolactone and corticosteroids) reduce hormone activity in the adrenal glands.

The acid, when distilled slowly, is decomposed and yields a and 0-angelica lactones.

As an illustration it may be pointed out that in the case of the two known types of lactones - the y-lactones, which contain four carbon atoms and one oxygen atom in the ring, are more readily formed and more stable (less readily hydrolysed) than the S-lactones, which contain one oxygen and five carbon atoms in the ring.

These findings suggest that the allergens of Liriodendron may be sesquiterpene lactones.

); the cyclic esters of oxycarboxylic acids (lactones, lactides); the internal anhydrides of aminocarboxylic acids (lactams, betaines); cyclic derivatives of dicarboxylic acids (anhydrides, imides, alkylen-esters, alkylenamides, 'c.

CH20H CH20H CH OH CH OH (CH OH) 2 -> (CH OH)2 CHO CH-OH CN Pentose -> Cyanhydrin on further oxidation gives a mannonic acid, C 5 H 8 (OH) 5 CO 2 H; this acid readily yields a lactone.