CAS 91-25-8

2-Formylbenzenesulfonic acid

Description:

2-Formylbenzenesulfonic acid, also known as ortho-formylbenzenesulfonic acid, is an aromatic sulfonic acid characterized by the presence of both a formyl group (-CHO) and a sulfonic acid group (-SO3H) attached to a benzene ring. This compound typically appears as a white to light yellow solid and is soluble in water due to the polar nature of the sulfonic acid group. It has a relatively high melting point, indicative of strong intermolecular interactions, such as hydrogen bonding. The presence of the formyl group makes it a useful intermediate in organic synthesis, particularly in the preparation of various derivatives and in the development of dyes and pharmaceuticals. Additionally, 2-formylbenzenesulfonic acid can participate in electrophilic aromatic substitution reactions, making it a versatile building block in organic chemistry. Its sulfonic acid functionality also imparts acidic properties, allowing it to act as a catalyst in certain reactions. Safety precautions should be taken when handling this compound, as it may cause irritation to the skin and eyes.

Formula: C₇H₆O₄S

InChI: InChI=1S/C7H6O4S/c8-5-6-3-1-2-4-7(6)12(9,10)11/h1-5H,(H,9,10,11)

InChI key: InChIKey=SHHKMWMIKILKQW-UHFFFAOYSA-N

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

Synonyms:

• 2-Formylbenzene-1-sulfonic acid
• 2-Formylbenzenesulfonic acid
• 2-Sulfobenzaldehyde
• Benzaldehyde-2-sulfonic acid
• Benzaldehyde-o-sulfonic acid
• Benzenesulfonic acid, 2-formyl-
• Benzenesulfonic acid, o-formyl-
• Sodium 2-Formylbenzenesulfonate Dihydrate
• Sodium Benzaldehyde-O-Sulfonate
• o-Formylbenzenesulfonic acid
• o-Sulfobenzaldehyde

2-Sulfobenzaldehyde hydrate

CAS: 91-25-8

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Formula: C₇H₆O₄S

Purity: Min. 95%

Molecular weight: 186.19 g/mol

Ref: 3D-AAA09125