Molecular Formula:C15H15O2N3 Molecular Weight:269.30 PH indicator range: 4.5（red）~6.2（yellow） Residue on ignition (as sulfate): 0.2%max Mass-absorption coefficient λ1（PH4.5）,L/(cm·g): 130min λ2（PH6.2）,L/(cm·g): 70min Maximum absorption wavelength λ1（PH4.5）,nm: 523~528 λ2（PH6.2）,nm: 427~437 Loss on drying: 1.0%max

CAS NO:493-52-7

EC NO:207-776-1

Molecular Formula:C₁₅H₁₅N₃O₂

Molecular Weight:269.2985

Synonyms:;C.I. Acid Red 2;C.I. Acid Red 2 (8CI);O-Methyl red;CI NO 13020;BROMOCRESOL GREEN-METHYL RED;BROMOCRESOL GREEN-METHYL RED ETHANOL;BROMOCRESOL GREEN/METHYL RED, MIXED INDICATOR;BROMOCRESOL GREEN/METHYL RED, MIX INDICATOR FOR ALKALINITY;METHYL RED INDICATOR;METHYL RED MIXED SOLUTION;2-{(E)-[4-(dimethylamino)phenyl]diazenyl}benzoic acid;5-(dimethylamino)-2-[(E)-phenyldiazenyl]benzoic acid;Methyl red;

Molecular Structure: