CAS 118-88-7

5-Amino-2-methylbenzenesulfonic acid

Description:

5-Amino-2-methylbenzenesulfonic acid, also known as o-toluidine-4-sulfonic acid, is an organic compound characterized by the presence of an amino group and a sulfonic acid group attached to a methyl-substituted benzene ring. Its molecular structure features a sulfonic acid (-SO3H) group, which imparts strong acidity and enhances its solubility in water. The amino group (-NH2) contributes to its basicity and potential reactivity in various chemical reactions, including diazotization and coupling reactions, making it useful in dye synthesis and as an intermediate in organic synthesis. This compound is typically a white to light yellow crystalline solid and is soluble in water, reflecting its polar nature. It is important to handle this substance with care, as it may pose health risks, including potential carcinogenicity associated with its structural analogs. Overall, 5-amino-2-methylbenzenesulfonic acid is significant in both industrial applications and research contexts, particularly in the fields of organic chemistry and materials science.

Formula: C₇H₉NO₃S

InChI: InChI=1S/C7H9NO3S/c1-5-2-3-6(8)4-7(5)12(9,10)11/h2-4H,8H2,1H3,(H,9,10,11)

InChI key: InChIKey=BRKFTWHPLMMNHF-UHFFFAOYSA-N

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

Synonyms:

• 1-Amino-4-methylbenzene-3-sulfonic acid
• 3-Amino-6-methylbenzenesulfonic acid
• 3-Sulfo-4-methylaniline
• 4-Amino-2-sulfotoluene
• 4-Aminotoluene-2-sulfonic acid
• 4-Methyl-3-sulfoaniline
• 4-Methylaniline-3-sulfonic acid
• 4-Toluidine-3-sulfonic acid
• 5-Amino-2-Methylbenzenesulfonate
• 5-Amino-2-methyl-1-sulfobenzene
• 5-Amino-2-methylbenzenesulfonic acid
• 5-Amino-o-toluenesulfonic acid
• Benzenesulfonic acid, 5-amino-2-methyl-
• NSC 22958
• NSC 5586
• o-Toluenesulfonic acid, 5-amino-

Pazopanib Impurity 50

CAS: 118-88-7

Formula: C₇H₉NO₃S

Molecular weight: 187.21

Ref: ST-EA-CP-P58070

5-amino-2-methylbenzene-1-sulfonic acid

CAS: 118-88-7

Formula: C₇H₉NO₃S

Purity: 98%

Color and Shape: Solid

Molecular weight: 187.2163

Ref: IN-DA003MDG

5-Amino-2-Methylbenzenesulfonic Acid

CAS: 118-88-7

5-Amino-2-Methylbenzenesulfonic Acid

Purity: 98%

Molecular weight: 187.22g/mol

Ref: 54-OR1011806

4-Amino-2-sulfotoluene

Controlled Product

CAS: 118-88-7

Formula: C₇H₉NO₃S

Color and Shape: Neat

Molecular weight: 187.216

Ref: TR-A295880

5-Amino-2-methylbenzenesulfonic Acid

CAS: 118-88-7

Stability Hygroscopic
Applications 5-Amino-2-methylbenzenesulfonic Acid Monohydrate is the hydrated version of 5-Amino-2-methylbenzenesulfonic Acid (CAS# 118-88-7), which is used as a modifier in the preparation of chlorine-resistant fiber cloth for swimming suits.
References Li, J.: Faming Zhuanli Shenqing. (2017), CN 106544854 A

Formula: C₇H₉NO₃S

Color and Shape: Neat

Molecular weight: 187.216

Ref: TR-A577313