Mordant Orange 1 CAS 2243-76-7

CAS: 2243-76-7

Molecular Formula: C13H9N3O5

Molecular Weight: 287.23

EINECS: 218-818-3

Synonyms: MORDANT ORANGE 1; P-NITROBENZENEAZOSALICYLIC ACID SODIUM SALT; ORANGE R; TIMTEC-BB SBB008990; SODIUM P-NITROBENZENEAZOSALICYLATE; SODIUM 5-(P-NITROPHENYLAZO)SALICYLATE; synchromateorangeaor; terracotta2rn; terracottarrn; tertrochromeyellow3r

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What is Mordant Orange 1 CAS 2243-76-7?

Mordant Orange 1 is mainly used as an acid-base indicator, with a pH value of 10.0 (yellow) to 12.0 (red). Metallic coloring agents. 1% sodium salt is commonly used as an indicator.

Specification

Item	Specification
Boiling point	429.53°C (rough estimate)
Density	1.3681 (rough estimate)
Melting point	250°C
Solubility	1.5600 (estimate)
pKa	11.2(at 25℃)
Purity	99%

Application

Mordant Orange 1, also known as p-nitrophenylazosalicylic acid or sodium salt, or Alizarin Yellow R, is mainly used as an organic reagent and coloring agent.