Schiffn.

1892 Jrnl. Chem. Soc. 62 ii. 1189 Schiff's bases, derived from aromatic aldehydes, have a similar constitution to benzylidenaniline, PhN:CHPh, which serves as the type of these compounds.

1915 P. E. Spielmann tr. V. von Richter Org. Chem. 383 Hydrocyanic acid attaches itself similarly to the oximes..and to the Schiff bases.

1951 I. L. Finar Org. Chem. I. xiii. 257 Primary amines combine with aromatic aldehydes to form Schiff bases.

1971 Nomencl. Org. Chem. (I.U.P.A.C.) (ed. 2) 258 Compounds R¹R²CNR³ have the class name ‘azomethines’. When the nitrogen atom is substituted, this class of compound has the generic name ‘Schiff's bases’.

1975 Nature 30 Oct. 823/2 In visual pigments, retinal is bound by way of a Schiff base linkage to the protein.

1894 W. H. Perkin & F. S. Kipping Org. Chem. i. viii. 122 Aldehyde may be detected..by the ‘magenta’ or ‘rosaniline test’ (Schiff's reaction).

1897 Chem. News 9 July 23/2 (heading) Schiff reaction applied to acid fuchsine.

1951 I. L. Finar Org. Chem. I. viii. 123 Ketones do not give Schiff's reaction.

1897 Jrnl. Chem. Soc. 72 ii. 468 The author [sc. B. von Bittó] has also studied the behaviour of Schiff's reagent (a 0·025 per cent. solution of magenta decolorised by passing sulphurous anhydride through it)..with a number of aldehydes and ketones.

1929 Evers & Elsdon Analysis of Drugs & Chemicals 279 The proportion of formaldehyde may be determined by the use of Schiff's reagent.

1964 M. Hynes Med. Bacteriol. (ed. 8) xxvii. 412 Schiff reagent.

1902 J. B. Cohen Theoret. Org. Chem. ix. 128 A further reaction for aldehydes is known as Schiff's test.

1949 English & Cassidy Princ. Org. Chem. xi. 202 Advantage is taken of the greater reactivity of aldehydes toward bisulfite in the Schiff test for aldehydes.

1972 R. O. C. Norman & D. J. Waddington Mod. Org. Chem. xii. 174 The addition of an aldehyde to this colourless solution restores the pink colour of the dye (Schiff's test).