HIPPURIC See also:

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

ACID (Gr. iazros, See also:

• HORSE (a word common to Teutonic languages in such forms as hors, hros, ros; cf. the Ger. ross)

horse, ovpov, urine)  , benzoyl glycocoll or benzoyl amidoacetic See also:

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

acid, C9H9NO3 or C6H5CO NH•See also:

• CH2
• CH2(OH)

CH2•See also:

• CO2H

CO2H, an organic acid found in the urine of horses and other herbivorae . It is excreted when many aromatic compounds, such as benzoic acid and See also:

• TOLUENE, or METHYLBENZENE

toluene, are taken internally . J. v . See also:

• LIEBIG, JUSTUS VON, BARON (1803-1873)

Liebig in 1829 showed that it differed from benzoic acid, and in 1839 determined its constitution, while in 18J3 V . Dessaignes (See also:

• ANN

Ann . 87, p . 325) synthesized it by acting with benzoyl chloride on See also:

• ZINC

zinc glycocollide . It is also formed by See also:

• HEATING

heating benzoic anhydride with glycocoll (Th . See also:

• CURTIUS, ERNST (1814-1896)
• CURTIUS, MARCUS

Curtius, Ber., 1884, 17, p . 1662), and by heating benzamide with monochloracetic acid . It crystallizes in rhombic prisms which are readily soluble in hot See also:

• WATER

water, melt at 187° C. and decompose at about 2400 C . It is readily hydrolysed by hot See also:

• CAUSTIC (Gr. rcavvraubs, burning)

caustic alkalis to benzoic acid and glycocoll .

Nitrous acid converts it into benzoyl glycollic acid, See also:

• C6H

C6H,CO.O•CH2•CO2H . Its See also:

• ETHYL

ethyl ester reacts with See also:

• HYDRAZINE (DIAMIDOGEN), N2H4

hydrazine to See also:

• FORM (Lat. forma)

form hippuryl hydrazine, C6H5CO•NH•CH2•CO•NH•See also:

• NH2

NH2, which was used by Curtius for the preparation of See also:

• AZOIMIDE

azoimide (q.v.) .