The aurochloride has the formula C5H14N22HCl2AuCl3; it is rather insoluble in cold water, and crystallises in bunches of yellow needles. On ignition, it should yield 41·19 per cent. of gold.
The picrate, C5H14N2,2C6H2(NO2)3OH, is almost insoluble in cold water, and crystallises in needles. It is not fusible, but decomposes at about 230°.
Neuridine is not poisonous.
§ 664. Cadaverine (Pentamethylenediamine, C5H14N2=NH2CH2-CH2-CH2-CH2CH2NH2) is formed in putrid animal matters, and in cultures of the genus Vibrio. It has been found in the urine and fæces in cases of cystinuria, and Roos[661] has separated it by the benzoyl-chloride method from the fæces of a patient suffering from tertian ague. It may be formed synthetically by dissolving trimethylcyanide in absolute alcohol, and then reducing by sodium (Mendius’ reaction).
[661] Zeit. f. physiol. Chemie, xvi., 1892.
Cadaverine is a thick, clear, syrupy liquid, with a peculiar coniine- as well as a semen-like odour. It absorbs eagerly CO2 from the air, and ultimately is converted into a solid crystalline mass. It volatilises with the steam when boiled with water, and may be distilled in the presence even of the caustic alkalies and the alkaline earths without decomposition. It does not give oil of mustard when treated with CS2 and mercuric chloride, nor does it give with chloroform and alcoholic potash, carbylamine (isonitrile). If dehydrated by KHO, it boils at from 115°-120° (Brieger).[662]