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CAS Number: 116-63-2
Molecular Weight: 239.25
Linear Formula: H2NC10H5(OH)SO3H
Other Names: 1-Amino- 2-naphthol- 4-sulfonic acid
1-Amino- 2-naphthol- 4-sulfonic acid is a white to slightly brownish-pink powder. 1-Amino- 2-naphthol- 4-sulfonic acid, also known as 4-Amino- 3- hydroxy-1- naphthalene sulfonic acid, has a melting point of 290 °C. 1- Amino-2- naphthol-4- sulfonic acid is used in the determination of phosphates.