Thiophene-2-boronic acid, 98%

Name: Thiophene-2-boronic acid, 98%
Brand: Vaqora Chemicals
SKU: VQ-011073

About Thiophene-2-boronic acid, 98%

Listed under CAS 6165-68-0, Thiophene-2-boronic acid is a boronic acid building block available from Vaqora Chemicals, specified at 95% purity. Formula C4H5BO2S, molecular weight 127.96 g/mol. Its systematic (IUPAC) name is thiophen-2-ylboronic acid. Common synonyms include 2-Thienylboric acid and 2-Thienylboronic acid.

The material typically appears as white to orange to green powder or crystals. Reported physical data include a melting point of 138-140 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 4 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Thiophene-2-boronic acid in 1 g, 5 g, 25 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Thiophene-2-boronic acid, 98%
Catalogue No.	VQ-011073
CAS Number	6165-68-0
IUPAC name	thiophen-2-ylboronic acid
Molecular formula	C₄H₅BO₂S
Molecular weight	127.96 g/mol
Exact mass	128.0103
Purity / assay	95%
HSN code	29242990
InChIKey	ARYHTUPFQTUBBG-UHFFFAOYSA-N
SMILES	B(C1=CC=CS1)(O)O
PubChem CID	2733960

Physical properties
Physical form	Crystalline
Appearance	White to orange to green powder or crystals
Melting point	138-140 °C
H-bond donors / acceptors	2 / 3
TPSA	68.7 Å²
Synonyms	2-Thienylboric acid, 2-Thienylboronic acid, Thien-5-ylboronic acid, 2-Thiopheneboronic acid, Thienylboronic acid, thiophen-2-ylboranediol, (thiophen-2-yl)boronic acid, thiophene2-boronic acid, 2-thiophen boronic acid, 2-thiophenylboronic acid, thiophen-2-boronic acid, 2-thiophene boronic 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 Thiophene-2-boronic acid, 98%?

The CAS Registry Number of Thiophene-2-boronic acid, 98% is 6165-68-0. It is also known as 2-Thienylboric acid, 2-Thienylboronic acid, Thien-5-ylboronic acid.

What is the molecular formula and molecular weight of Thiophene-2-boronic acid, 98%?

Thiophene-2-boronic acid, 98% has the molecular formula C4H5BO2S and a molecular weight of 127.96 g/mol. Its IUPAC name is thiophen-2-ylboronic acid.

Which grade and pack sizes of Thiophene-2-boronic acid, 98% can I order?

We supply Thiophene-2-boronic acid, 98% in (95%) grade, in 1 g, 5 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Thiophene-2-boronic acid, 98%?

Yes. Every lot of Thiophene-2-boronic acid, 98% 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 Thiophene-2-boronic acid, 98% be shipped internationally?

Yes. Thiophene-2-boronic acid, 98% 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.