4-(tert-Butyldimethylsilyloxy)phenylboronic acid

4-(叔丁基二甲硅氧基)苯硼酸

Also known as: 4-(tert-Butyldimethylsiloxy)phenyl boronic acid, 4-(tert-Butyldimethylsilyloxy)benzeneboronic acid, (4-((tert-Butyldimethylsilyl)oxy)phenyl)boronic acid, [4-(tert-Butyldimethylsilanyloxy)phenyl]boronic acid, 4-(TERT-BUTYLDIMETHYLSILYLOXY)PHENYLBORONIC ACID, 4-(T-BUTYL DIMETHYLSILOXY) PHENYL BORONIC ACID, Boronic acid, B-[4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]phenyl]-, AKOS BRN-0412, MFCD03093888

4-(tert-Butyldimethylsilyloxy)phenylboronic acid (CAS 159191-56-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H21BO3Si and a molecular weight of 252.190 g/mol. It is also known as 4-(tert-Butyldimethylsiloxy)phenyl boronic acid, 4-(tert-Butyldimethylsilyloxy)benzeneboronic acid and (4-((tert-Butyldimethylsilyl)oxy)phenyl)boronic acid. Key properties include a melting point of 194-198ºC(lit.), a boiling point of 321.4±44.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 148.2±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
159191-56-7
Jingsj CID
J-16509-1
Molecular Formula
C12H21BO3Si
Chinese Name
4-(叔丁基二甲硅氧基)苯硼酸
Molecular Weight
252.190 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point194-198ºC(lit.)
Boiling Point321.4±44.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point148.2±28.4 °C

Frequently Asked Questions

What is the CAS number of 4-(tert-Butyldimethylsilyloxy)phenylboronic acid?

The CAS number of 4-(tert-Butyldimethylsilyloxy)phenylboronic acid is 159191-56-7.

What are the molecular formula and molecular weight of 4-(tert-Butyldimethylsilyloxy)phenylboronic acid?

4-(tert-Butyldimethylsilyloxy)phenylboronic acid has molecular formula C12H21BO3Si and molecular weight 252.190 g/mol.

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

Last updated:

How to cite: Jingsj. "4-(tert-Butyldimethylsilyloxy)phenylboronic acid (CAS 159191-56-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16509-1 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.