Methyl orange ACS

Supplier: Thermo Scientific
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Synonyms: 4-((4-(Dimethylamino)phenyl)diazenyl)benzenesulphonic acid, sodium saltMethyl orange sodium saltHelianthine

ACRO414661000EA 38.1 GBP
ACRO414661000 ACRO414660250 ACRO414660100
Methyl orange ACS
Methyl orange
Formula: C₁₄H₁₄N₃NaO₃S
MW: 327.34 g/mol
Boiling Pt: ∼90 °C (1013 hPa)
Melting Pt: >300 °C
Storage Temperature: Ambient
MDL Number: MFCD00007502
CAS Number: 547-58-0
EINECS: 208-925-3
UN: 3143
ADR: 6.1,III
Merck Index: 13,06127

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Specification Test Results

Appearance Orange Crystalline powder
Infrared spectrum Conforms
Visual transition interval From pH 3.2 (pink or red) to pH 4.4 (yellow)
Clarity of solution Passes test
Stabilizer 100 to 400 ppm MEHQ

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