2-(1-Pentynyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

2-(1-戊炔基)-4,4,5,5-四甲基-1,3,2-二氧杂环戊硼烷

Also known as: 1-Pentyne-1-boronic acid pinacol ester, 1-Pentynylboronic acid pinacol ester, 4,4,5,5-tetramethyl-2-(pent-1-yn-1-yl)-1,3,2-dioxaborolane, 4,4,5,5-tetramethyl-2-pent-1-ynyl-1,3,2-dioxaborolane

2-(1-Pentynyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 634196-62-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H19BO2 and a molecular weight of 194.07800 g/mol. It is also known as 1-Pentyne-1-boronic acid pinacol ester, 1-Pentynylboronic acid pinacol ester and 4,4,5,5-tetramethyl-2-(pent-1-yn-1-yl)-1,3,2-dioxaborolane. Key properties include a boiling point of 68-72ºC/0.09 mmHg, a density of 0.9057 g/mL at 25ºC and a flash point of 68ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

634196-62-6

Jingsj CID

J-1494463-1

Molecular Formula

C₁₁H₁₉BO₂

Chinese Name

2-(1-戊炔基)-4,4,5,5-四甲基-1,3,2-二氧杂环戊硼烷

Molecular Weight

194.07800 g/mol

Category

Aliphatic Hydrocarbons

Last updated

8/21/2026