See also:

• HYDANTOIN (glycolyl urea), C3H4N202

HYDANTOIN (glycolyl See also:

• UREA, or CARBAMIDE, CO(NH2)2

urea), C3H4N202  or CO< NH•See also:

• CH2
• CH2(OH)

CH2 NH•CO the ureide of glycollic See also:

• ACID (from the Lat. root ac-, sharp; acere, to be sour)

acid, may be obtained by See also:

• HEATING

heating See also:

• ALLANTOIN, C4H6N4O3

allantoin or alloxan with hydriodic acid, or by heating bromacetyl See also:

• UREA, or CARBAMIDE, CO(NH2)2

urea with alcoholic See also:

• AMMONIA (NH3)

ammonia . It crystallizes in needles, melting at 216° C . When hydrolysed with baryta See also:

• WATER

water yields hydantoic (glycoluric) acid,See also:

• H2N

H2N • CO .NH . CH2• See also:

• CO2H

CO2H, which is readily soluble in hot water, and on heating with hydriodic acid decomposes into ammonia, See also:

• CARBON (symbol C, atomic weight 12)

carbon dioxide and glycocoll, CH2•See also:

• NH2

NH2•See also:

• CO2

CO2•H . Many substituted hydantoins are known; the a-alkyl hydantoins are formed on See also:

• FUSION

fusion of aldehyde- or ketone-cyanhydrins with urea, the '3-alkyl hydantoins from the fusion of mono-alkyl glycocolls with urea, and the 7-alkyl hydantoins from the See also:

• ACTION

action of alkalis and alkyl iodides on the a-compounds. y-Methyl See also:

• HYDANTOIN (glycolyl urea), C3H4N202

hydantoin has been obtained as a splitting product of See also:

• CAFFEINE, or THEINE (1.3.7 trimethyl 2 . 6 dioxypurin)

caffeine (E . See also:

• FISCHER
• FISCHER, EMIL (1852– )
• FISCHER, ERNST KUNO BERTHOLD (1824–1907)

Fischer, See also:

• ANN

Ann., 1882, 215, p . 253) .