ChemicalBook CAS DataBase List 4-Amino-benzenesulfonic acid monosodium salt

4-Amino-benzenesulfonic acid monosodium salt synthesis

7synthesis methods

Product Name:4-Amino-benzenesulfonic acid monosodium salt
CAS Number:515-74-2
Molecular formula:C6H8NNaO3S
Molecular Weight:197.18

121-57-3
516 suppliers
$13.00/25g

4-Amino-benzenesulfonic acid monosodium salt

515-74-2
240 suppliers
$37.00/25g

Yield:-

Reaction Conditions:

with sodium carbonate in N-methyl-acetamide

Steps:

1 EXAMPLE 1
EXAMPLE 1 17.3 grams of sulfanilic acid and 5.3 grams of sodium carbonate are charged to a 500 ml single neck round bottom flask equipped with a magnetic stirrer, nitrogen inlet and a reflux condenser. 300 ml of dimethylformamide were added to the flask, the sulfanilic acid and the sodium carbonate in dimethylformamide were heated to reflux at which time most of the solid dissolved. The admixture was allowed to cool to room temperature and was stirred overnight. The sodium salt of sulfanilic acid precipitated from solution at room temperature giving a white fluffy solid.

References:

Mobay Chemical Corporation US4320049, 1982, A

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547-58-0 Synthesis