1,5-Diphenylcarbazide

Diphenylcarbazide; 1,5-diphenylcarbonodihydrazide; C13H14N4O = 242.3 (140-22-7)

White or almost white, crystalline powder which gradually becomes pink on exposure to air, very slightly soluble in water, soluble in acetone, in ethanol (96%) and in glacial acetic acid.

Melting point, about 170°.

Sulfated ash Not more than 0.1%, Appendix IX A.

Store protected from light.