Methyl Orange

CAS: 547-58-0

Ref. 02-A17604

Product Information

• Name: Methyl Orange
• Synonyms: Acid Orange 52, C.I. 13025, 4-(4-Dimethylaminophenylazo)benzenesulfonate de sodium, 4-Dimethylaminoazobenzene, 4'-Sulfonic Acid Sodium Salt, 4-[[4-(Dimethylamino)phenyl]azo]benzenesulfonic acid sodium salt, Albion Methyl Orange, Benzenesulfonic acid, 4-[2-[4-(dimethylamino)phenyl]diazenyl]-, sodium salt (1:1), Benzenesulfonic acid, p-[[p-(dimethylamino)phenyl]azo]-, sodium salt, Diazoben, Eniamethyl Orange, Gold orange, Helianthine, Helianthine B, KCA Methyl Orange, Methyl Orange B, Metilnaranja, Natrium-4-(4-dimethylaminophenylazo)benzolsulfonat, Orange 3, Orange III, P-(P-Dimethylaminophenylazo)-Benzene-Sulfonate Of Sodium, Sodium 4'-(dimethylamino)azobenzene-4-sulfonate, Sodium 4-(4-Dimethylaminophenylazo)Benzenesulphonate, Sodium 4-[(4-dimethylamino)phenyldiazenyl]benzenesulfonate, Sodium 4-[4-(dimethylamino)phenylazo]benzenesulfonate, Sodium p-[[p-(dimethylamino)phenyl]azo]benzenesulfonate, Sodium p-dimethylaminoazobenzenesulfonate, Tropaeolin D, Benzenesulfonic acid, 4-[[4-(dimethylamino)phenyl]azo]-, sodium salt

Description

Methyl Orange is a pH indicator used in titrations for acids. It is also used for histological microscopy. Further, it is used as counter stain to crystal violet in staining pollen tubes. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

• Brand: Alfa Aesar By Thermo Fisher Scientific

Chemical properties

• Molecular weight: 304.34
• Formula: C₁₄H₁₄N₃O₃S
• Color/Form: Pale orange to dark orange, Crystals or powder or crystalline powder
• InChI key: IETWCRRCPURZOC-UHFFFAOYSA-M