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Methyl Orange pH Indicator

C.I No. 13025 4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid sodium salt, Acid Orange 52

Product Size 25gm/100gm/500gm Grade Laboratory Reagent (LR)
Purity CAS No. 547-58-0
Molecular Formula C14H14N3NaO3S Molecular Weight 327.34
H.S. Code 29270000 Shelf Life 60 months
MSDS Certificate of Analysis (COAs)

Specifications

Appearance Orange powder
Transition range
pH 3.1 Pink
pH 4.4 Orange yellow
Solubility 0.1% (dist. water) Orange solution
Absorptivity 1%/1 cm, (pH 3.1 at ? max. 504.0 nm 1050-1150
Absorptivity 1%/1 cm, (pH 4.4 at ? max. 466.0 nm 750-850
Loss on drying at 110°C (1 hr) <3%

Safety Information and Hazard Symbols
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