3-Thiopheneboronic acid, ≥97%

Name: 3-Thiopheneboronic acid, ≥97%
Brand: Vaqora Chemicals
SKU: VQ-011045

About 3-Thiopheneboronic acid, ≥97%

Vaqora Chemicals supplies 3-Thiopheneboronic acid, a boronic acid building block registered under CAS number 6165-69-1, specified at ≥97% purity. The compound has the formula C4H5BO2S, corresponding to a molecular weight of 127.96 g/mol. Its systematic (IUPAC) name is thiophen-3-ylboronic acid. Alternative names: Thiophene-3-boronic acid and 3-Thienylboronic acid.

The material typically appears as white to light yellow powder or crystals. Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 1 g and 5 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	3-Thiopheneboronic acid, ≥97%
Catalogue No.	VQ-011045
CAS Number	6165-69-1
IUPAC name	thiophen-3-ylboronic acid
Molecular formula	C₄H₅BO₂S
Molecular weight	127.96 g/mol
Exact mass	128.0103
Purity / assay	≥97%
HSN code	29420090
InChIKey	QNMBSXGYAQZCTN-UHFFFAOYSA-N
SMILES	B(C1=CSC=C1)(O)O
PubChem CID	581760

Physical properties
Physical form	Crystalline
Appearance	White to light yellow powder or crystals
H-bond donors / acceptors	2 / 3
TPSA	68.7 Å²
Synonyms	Thiophene-3-boronic acid, 3-Thienylboronic acid, (thiophen-3-yl)boronic acid, Boronic acid, 3-thienyl-, thiopen-3-boronic acid, 3-Thienyl boronic acid, 3-thiophene boronic acid, thiophene 3-boronic acid, thiophen-3-yl boronic acid, 3-thienylboronicacid, 3-Thiopheneboronicacid, 3-thiophenboronic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 3-Thiopheneboronic acid, ≥97%?

The CAS Registry Number of 3-Thiopheneboronic acid, ≥97% is 6165-69-1. It is also known as Thiophene-3-boronic acid, 3-Thienylboronic acid, (thiophen-3-yl)boronic acid.

What is the molecular formula and molecular weight of 3-Thiopheneboronic acid, ≥97%?

3-Thiopheneboronic acid, ≥97% has the molecular formula C4H5BO2S and a molecular weight of 127.96 g/mol. Its IUPAC name is thiophen-3-ylboronic acid.

Which grade and pack sizes of 3-Thiopheneboronic acid, ≥97% can I order?

We supply 3-Thiopheneboronic acid, ≥97% in (≥97%) grade, in 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 3-Thiopheneboronic acid, ≥97%?

Yes. Every lot of 3-Thiopheneboronic acid, ≥97% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 3-Thiopheneboronic acid, ≥97% be shipped internationally?

Yes. 3-Thiopheneboronic acid, ≥97% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.