Molekula
5-Cyanothiophene-2-boronic acid
5-Cyanothiophene-2-boronic acid is a boronic acid derivative used in cross-coupling reactions, particularly in the synthesis of pharmaceuticals and functional materials. It is a white to off-white solid with a molecular formula of C5H4BNO2S and a molecular weight of 152.96 g/mol. It is stable at ambient temperature and should be stored under normal conditions. The substance is classified as a warning hazard. Molekula supplies 5-Cyanothiophene-2-boronic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
5-Cyanothiophene-2-boronic acid is a boronic acid derivative used in cross-coupling reactions, particularly in the synthesis of pharmaceuticals and functional materials. It is a white to off-white solid with a molecular formula of C5H4BNO2S and a molecular weight of 152.96 g/mol. It is stable at ambient temperature and should be stored under normal conditions. The substance is classified as a warning hazard. Molekula supplies 5-Cyanothiophene-2-boronic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Shelf Life | 24 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 305832-67-1 |
| Molecular Formula | C5H4BNO2S |
| Molecular Weight | 152.96 |
| SMILES | N#CC=1SC(=CC1)B(O)O |
| EC / UN Number | 3439 |
| REACH Code | Y110 |
| HTS Code | 29349944 |
| Tariff Code | 2934999090 |
Safety & GHS
-
Explosive
GHS01
Hazard statements
- H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is 5-Cyanothiophene-2-boronic acid used for?
It is primarily used as a building block in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions for constructing complex molecules in pharmaceutical and agrochemical research.
What is the chemical formula and molecular weight?
The formula is C5H4BNO2S with a molecular weight of 152.96 g/mol.
How should 5-Cyanothiophene-2-boronic acid be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available?
Available in high purity grade suitable for research and synthesis applications.
Can Molekula supply it in bulk?
Yes, Molekula can supply 5-Cyanothiophene-2-boronic acid in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.