534-97-4 D-Fructosazone D-Fructose phenylosazone D-Glucosazone D-Glucose phenylosazone D-Mannosazone D-Mannose phenylosazone D-arabino-Hexos-2-ulose, bis(phenylhydrazone) D-arabino-Hexosulose, bis(phenylhydrazone) Dextrosazone NSC2027