Regis Technologies

GC Derivatization Reagents

Silylation Reagents

BSTFA +10% TMCS-Regisil

BSTFA is a Silylation Reagent for GC Derivatization that reacts faster and more completely than BSA, due to the trifluoroacetamide leaving group. The high volatility of BSFTA and its byproducts results in non-co-elution of early eluting peaks. Additionally, the highly volatile and stable products result in low detector noise and fouling.

Addition of TMCS to BSTFA catalyzes reactions of hindered functional groups and other difficult functionalities, such as secondary hydroxyls and amines.

Physical and Chemical Properties

Suggested Storage Conditions: Cool Place
Use: Silylation Reagent for GC
Appearance: Clear, colorless liquid
BP: 147ºC (296ºF)
MF: C8H18F3NOSi2 + (CH3)2SiCl
FW: 257.40 g/mol (BSTFA) + 108.66 g/mol (TMCS)
Specific Gravity (H20 = 1.0): 1.028

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Regisil BSTFA + 10% TMCS; N,O-Bis(trimethylsily)trifluoroacetamide + 10% Trimethylchlorosilane; RC-3

CAS [25561-30-2 BSTFA; 75-77-4 TMCS]

Product	Size	Regis Product #

Regisil® RC-3 (BSTFA+10% TMCS)	10 x 1 gram	270131
Regisil® RC-3 (BSTFA+10% TMCS)	4 x 5 gram	270132
Regisil® RC-3 (BSTFA+10% TMCS)	25 gram	270133
Regisil® RC-3 (BSTFA+10% TMCS)	100 gram	270134
Regisil® RC-3 (BSTFA+10% TMCS)	1000 gram	270135

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