3-Methoxybenzenethiol, CAS No. 15570-12-4

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15570-12-4

Catalog No. EBD2036228

CAS 15570-12-4

Name 3-Methoxybenzenethiol

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Basic Information

Synonyms: 3-Methoxybenzenethiol 3-Mercaptoanisole 3-methoxybenzenethiolate 3-Methoxythiophenol

Molecular Formula: C7H8OS

Molecular Weight: 140.2

MDL Number: MFCD00004841

Categories: Synthetic Chemistry > Organic Building Blocks > Sulfides and Thioethers Synthetic Chemistry > Basic Synthetic Reagents > Other Basic Synthetic Reagents

Product Description:

3-Methoxythiophenol is an organic compound featuring a benzene ring substituted with a methoxy group (-OCH₃) and a thiol group (-SH) at the meta position. It is a colorless to pale yellow liquid with a characteristic, often unpleasant, odor typical of thiophenols. Its molecular formula is C₇H₈OS. This compound serves primarily as a versatile building block in organic synthesis. The thiol group is a key functional handle for various chemical transformations, most notably in the formation of thioethers (sulfides) via nucleophilic substitution or Michael addition reactions. It is also used in the synthesis of heterocyclic compounds and as a precursor for ligands in coordination chemistry and catalysis. Due to the reactivity of the thiol group, 3-methoxythiophenol must be handled with care under an inert atmosphere to prevent oxidation to the corresponding disulfide. It finds application in pharmaceutical and materials research as an intermediate, but its primary identity remains that of a specialized synthetic reagent and sulfur-containing aromatic building block.

Physical Properties

Boiling Point: 223-226 °C(lit.)

Flash Point: 96 °C

Density: 1.13 g/mL at 25 °C(lit.)

Refractivity: n20/D 1.587(lit.)

Storage: 2-8°C

Safety Information

Packing Level:

Hazard Category:

Transport Codes: 3334

Analytical Data

Appearance: clear colorless to light yellow liquid