Methyl orange
The structural formula is sodium p-dimethylaminoazobenzene sulfonate or 4-((4- (dimethylaminophenyl)) azobenzene sulfonate.
Item no. : 070363
English name: Methyl Orange
Don't weigh: golden lotus orange D
Chemical formula: C ₁ H ₄ ₁ ₄ N ₃ SO ₃ Na
Molecular weight: 327.33
C A S: 547-58-0
Specification: 25g
Packing: 25g/ bottle x 20 bottles/piece
Sex: orange powder or scaly crystals;The range of color change of methyl orange was red at pH ≤ 3.1, orange at 3.1-4.4, and yellow at pH ≥ 4.4.
Usage: methyl orange has been used in the laboratory and in industrial and agricultural production as an acid-base control for chemical reactions and as an acid-base titration for chemical products and intermediates.The disadvantage of the methyl orange indicator is that the yellow-red color is less recognizable and has been replaced by a wide range of indicators (see "phenolphthalein").Methyl orange is also an azo dye used in textiles.