CAS 121-62-0

4-Acetamidobenzenesulfonic acid

Description:

4-Acetamidobenzenesulfonic acid, also known as para-acetamidobenzenesulfonic acid, is an aromatic sulfonic acid characterized by the presence of both an acetamido group and a sulfonic acid group attached to a benzene ring. Its molecular formula is C8H9NO3S, and it features a sulfonic acid (-SO3H) group that imparts strong acidity, making it soluble in water. This compound typically appears as a white to off-white crystalline solid. It is used in various applications, including as a reagent in organic synthesis, in dye manufacturing, and as a pH indicator. The presence of the acetamido group enhances its reactivity and solubility in polar solvents. Additionally, 4-acetamidobenzenesulfonic acid can participate in electrophilic substitution reactions due to the electron-donating nature of the acetamido group, making it a versatile intermediate in chemical synthesis. Safety precautions should be taken when handling this compound, as it may cause irritation to the skin and eyes.

Formula: C₈H₉NO₄S

InChI: InChI=1S/C8H9NO4S/c1-6(10)9-7-2-4-8(5-3-7)14(11,12)13/h2-5H,1H3,(H,9,10)(H,11,12,13)

InChI key: InChIKey=ZQPVMSLLKQTRMG-UHFFFAOYSA-N

SMILES: S(=O)(=O)(O)C1=CC=C(NC(C)=O)C=C1

Synonyms:

• 4-(Acetylamino)benzenesulfonic acid
• 4-Acetamidobenzenesulfonic acid
• 4-Acetylaminobenzenesulfonic acid
• Acetanilide-p-sulfonic acid
• Benzenesulfonic acid, 4-(acetylamino)-
• N-Acetylsulphanilic acid
• N-p-Acetylanilinosulfonic acid
• N⁴-Acetylsulfanilic acid
• Sulfanilic acid, N-acetyl-
• p-Acetamidobenzenesulfonic acid
• p-Acetylaminobenzenesulfonic acid

Sulfadimethoxine EP Impurity C

CAS: 121-62-0

Formula: C₈H₉NO₄S

Molecular weight: 215.22

Ref: 4Z-S-107

4-Acetamidobenzenesulfonic Acid

Controlled Product

CAS: 121-62-0

Impurity Sulfadimethoxine EP Impurity C
Stability Hygroscopic
Applications 4-Acetamidobenzenesulfonic Acid (Sulfadimethoxine EP Impurity C) is a metabolite of Sulfanilic acid.
References Saab, N., et al.: Eur. J. Med. Chem., 34, 745 (1999), Kim, H., et al.: J. Pharm. Biomed. Anal., 27, 51 (2002), Santelli-Rouvier, C., et al.: Eur. J. Med. Chem., 39, 735 (2004),

Formula: C₈H₉NO₄S

Color and Shape: Neat

Molecular weight: 215.23

Ref: TR-A141875

Sulfadimethoxine EP Impurity C

CAS: 121-62-0

Formula: C₈H₉NO₄S

Molecular weight: 215.22

Ref: ST-EA-CP-S55003