Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® PC9235
SiSiB® PC9235

N,O-Bis(trimethylsilyl)acetamide

SiSiB® PC9235 (BSA) silane is a colorless to slightly yellowish liquid which is soluble in many nonpolar and polar aprotic solvents.


SiSiB® PC9235, N,O-bis(trimethylsilyl)-acetamide is an effective silylating agent. It is used in the pharmaceutical and in the chemical industry. Typically the silylating reaction with BSA results in neutral by-products only.


SiSiB® PC9235

Technical Data


CAS No.

10416-59-8

EINECS No.

233-892-7

Formula

C8H21NOSi2

Molecular Weight

203.43

Boiling Point

73°C [35mmHg] 162°C [760mmHg]

Flash Point

42°C

Melting Point

24°C



Color and Appearance

Clear to yellowish clear liquid

Density 25/25°C

0.832

Refractive Index

1.418 [25°C]

Min. Purity

98.0%


Application


  • The trimethylsilyl group is a frequently utilized monofunctional blocking group for protic organic and inorganic materials.


  • As the product eliminated during the silylation is neutral acetamide, SiSiB® PC9235 can be preferably used for substrates which are acid- or base-sensitive.


  • SiSiB® PC9235 can be used for blocking and protection of hydroxyl groups in natural products, e.g. amino acids, carbohydrates


  • SiSiB® PC9235 special silane can be used for blocking and protection of functional groups in organic intermediates.


  • The silylated derivatives show improved chemical stability than the original compounds and allow chemical reactions which otherwise would not be possible.


  • SiSiB® PC9235 can be used for formation of derivatives of H-acid compounds for analysis


  • The silylated derivatives are volatile and can therefore be determined by gas chromatography


  • Deblocking is preferably carried out by means of hydrolysis, giving high yields. In some cases, thermal elimination of the trimethylsilyl group is possible.


Packing and Storage



  • In the unopened original container SiSiB® PC9235 has a shelf life of one year in a dry and cool place.


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