Thianaphthene-2-carboxylic acid
Thianaphthene-2-carboxylic acid (CAS 6314-28-9), with the empirical formula C9H6O2S and a molecular weight of 178.21 g/mol, is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly within the realm of benzothiophene derivatives. Its structural characteristics make it a useful intermediate for creating more complex molecules in research and development settings.
- IUPAC
- Benzo[b]thiophene-2-carboxylic acid
- Synonyms
- Benzo[b]thiophene-2-carboxylic acid

Organic Synthesis Intermediate
Utilised as a key building block in the synthesis of novel organic molecules, particularly those incorporating the benzothiophene scaffold. Its carboxylic acid functionality allows for diverse chemical transformations.
Research and Development
Employed in academic and industrial research laboratories for the exploration of new chemical entities and reaction pathways. It is suitable for developing new materials or pharmaceutical leads.
Heterocyclic Chemistry
A valuable reagent in heterocyclic chemistry, enabling the construction of complex sulfur-containing heterocyclic systems. This is important for creating compounds with specific electronic or biological properties.
| Molecular weight | 178.21 |
|---|---|
| Empirical formula | C9H6O2S |
| Assay | 98% |
| Melting point | 241-244 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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.
What is Thianaphthene-2-carboxylic acid used for?
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Thianaphthene-2-carboxylic acid is primarily used as a building block in organic synthesis and in research and development for creating complex heterocyclic compounds.
What is the CAS number and molecular formula for Thianaphthene-2-carboxylic acid?
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The CAS number is 6314-28-9 and the molecular formula is C9H6O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Thianaphthene-2-carboxylic acid with a purity of 98%. We do not represent this product as USP, BP, or EP grade.
How should Thianaphthene-2-carboxylic acid be handled?
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Handle with appropriate personal protective equipment, including a dust mask (N95 recommended), eyeshields, and gloves. Ensure adequate ventilation as it may cause skin, eye, and respiratory irritation (H315-H319-H335).
How is Thianaphthene-2-carboxylic acid packed and exported?
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This chemical is typically packed in secure containers suitable for international shipping and exported globally by Tech Serve Solutions, adhering to all necessary regulations.
How can I request a sample or quote for Thianaphthene-2-carboxylic acid?
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Please contact our sales team via the website or by phone to request a sample or a formal quotation for Thianaphthene-2-carboxylic acid.
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