Skip to main content

5-Methylthiophene-2-boronic acid

Also known as: (5-Methyl-2-thienyl)boronic acid, (5-methylthiophen-2-yl)boronic acid, 5-Methyl-2-thienylboric acid, 5-Methyl-2-thienylboronic acid, 5-Methyl-2-thiopheneboronic acid, 5-Methylthiophene-2-boronic acid, Boronic acid, B-(5-methyl-2-thienyl)-, MFCD01318166

5-Methylthiophene-2-boronic acid (CAS 162607-20-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7BO2S and a molecular weight of 141.984 g/mol. Key properties include a melting point of 161.5-166.5 °C(lit.), a boiling point of 302.9±44.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 137.0±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
162607-20-7
Jingsj CID
J-41251-1
Molecular Formula
C5H7BO2S
Molecular Weight
141.984 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point161.5-166.5 °C(lit.)
Boiling Point302.9±44.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point137.0±28.4 °C
Exact Mass142.025986
PSA68.70000
LogP1.73
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.551

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Methylthiophene-2-boronic acid?

The CAS number of 5-Methylthiophene-2-boronic acid is 162607-20-7.

What are the molecular formula and molecular weight of 5-Methylthiophene-2-boronic acid?

5-Methylthiophene-2-boronic acid has molecular formula C5H7BO2S and molecular weight 141.984 g/mol.

What are the upstream and downstream products of 5-Methylthiophene-2-boronic acid?

For 5-Methylthiophene-2-boronic acid, Upstream Products: Triisopropyl borate, 2-Methylthiophene, 5-Methylthiophene-2-boronic acid pinacol ester; Downstream Products: 5-Methylthiophene-2-boronic acid pinacol ester, 5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "5-Methylthiophene-2-boronic acid (CAS 162607-20-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41251-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.