Benzo[b]thiophene-2,3-dione

CAS 493-57-2C8H4O2SChemical Synthesis

Benzo[b]thiophene-2,3-dione (CAS 493-57-2) is a heterocyclic organic compound with the molecular formula C8H4O2S and a molecular weight of 164.18 g/mol. This thioisatin derivative serves as a valuable building block in chemical synthesis. Its dione structure offers reactive sites for further derivatisation, making it a useful intermediate for creating more complex molecules within the fields of organic chemistry and materials science.

IUPAC: Thioisatin
Synonyms: ThioisatinBenzo[b]thiophen-2,3-dione

Email us

Benzo[b]thiophene-2,3-dione (C8H4O2S) — chemical structure, CAS 493-57-2; Chemistry, fine chemical supplied by Tech Serve Solutions

BenzothiophenesBuilding BlocksChemical SynthesisHeterocyclic Building Blocks

01 /Applications

Organic Synthesis Intermediate

Benzo[b]thiophene-2,3-dione is employed as a key intermediate in the synthesis of various organic compounds. Its heterocyclic structure and reactive carbonyl groups facilitate the construction of complex molecular architectures.

Building Block for Heterocyclic Compounds

This compound functions as a versatile building block, particularly for the synthesis of novel benzothiophene derivatives and other sulphur-containing heterocyclic systems. It aids researchers in developing new chemical entities.

Research and Development

Utilised in research laboratories for exploring new reaction pathways and developing novel chemical structures. Its specific functionality makes it an interesting substrate for mechanistic studies and synthetic methodology development.

02 /Properties

Molecular weight	164.18
Empirical formula	C8H4O2S
Assay	≥97% (GC)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Danger

Hazard statements

H317May cause an allergic skin reaction
H318Causes serious eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES

Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xn
Risk statements (R)	41-43-52
Safety statements (S)	26-36/37-39

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

493-57-2

Beilstein registry

118077

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Benzo[b]thiophene-2,3-dione used for?

Benzo[b]thiophene-2,3-dione is used as a building block and intermediate in organic synthesis, particularly for creating complex heterocyclic compounds and in research and development settings.

What is the CAS number and molecular formula for Benzo[b]thiophene-2,3-dione?

The CAS number is 493-57-2, and the molecular formula is C8H4O2S.

What grade and purity does Tech Serve Solutions supply for Benzo[b]thiophene-2,3-dione?

Tech Serve Solutions supplies Benzo[b]thiophene-2,3-dione with a purity of ≥97% (GC). We do not represent this product as USP, EP, or BP grade.

How should Benzo[b]thiophene-2,3-dione be handled safely?

Benzo[b]thiophene-2,3-dione is classified as a Danger. It can cause serious eye damage (H318) and may cause an allergic skin reaction (H317). Wear protective gloves and eye/face protection. In case of contact with eyes, rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.

Can Tech Serve Solutions export Benzo[b]thiophene-2,3-dione?

Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Benzo[b]thiophene-2,3-dione, and can cater to international requirements.