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ChemicalBook >> CAS DataBase List >>Bis(trimethylsilyl)trifluoroacetamide

Bis(trimethylsilyl)trifluoroacetamide

CAS No.
25561-30-2
Chemical Name:
Bis(trimethylsilyl)trifluoroacetamide
Synonyms
BSTFA;N,O-BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE;N,O-BSTFA;Trimethylsilyl 2,2,2-trifluoro-N-(trimethylsilyl)acetimidate;N,O-Bis(Trimethylsilyl);N,N-BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE;N,0-Bis(trimethylsilyl)trifluoroacetamide;N.O-Bis(trimethylsilyl)trifluoro acetamide (BSTFA);Trimethylsilyl (E)-2,2,2-trifluoro-N-(trimethylsilyl)acetimidate;n,o-bis(trimethylsilyl)trifluoroacetamide with trimethylchlorosilane
CBNumber:
CB5464744
Molecular Formula:
C8H18F3NOSi2
Molecular Weight:
257.4
MDL Number:
MFCD00008269
MOL File:
25561-30-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 01:19:14
Product description Number Pack Size Price
BSTFA (with 1% TMCS) kit of 10 × 1?mL, analytical standard, Cerilliant? B-023 10x1mL $109
N,O-Bis(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur?, ≥99.0% 15222 1mL $33.8
N,O-Bis(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur?, ≥99.0% 15222 5ml $87.1
N,O-Bis(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur?, ≥99.0% 15222 25mL $217
N,O-Bis(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur?, ≥99.0% 15222 10x1mL $318
More product size

Bis(trimethylsilyl)trifluoroacetamide Properties

Melting point -10°C
Boiling point 45-50 °C14 mm Hg(lit.)
Density 0.97 g/mL(lit.)
refractive index n20/D 1.384(lit.)
Flash point 75 °C
storage temp. 2-8°C
solubility Miscible with chloroform.
form Liquid
pka 1.82±0.50(Predicted)
Specific Gravity 0.971
color Colorless to pale yellow
Water Solubility hydrolyses
Hydrolytic Sensitivity 8: reacts rapidly with moisture, water, protic solvents
Sensitive Moisture Sensitive
BRN 3607620
Stability Moisture Sensitive
InChI 1S/C8H18F3NOSi2/c1-14(2,3)12-7(8(9,10)11)13-15(4,5)6/h1-6H3/b12-7+
InChIKey XCOBLONWWXQEBS-KPKJPENVSA-N
SMILES C[Si](C)(C)O\C(=N\[Si](C)(C)C)C(F)(F)F
CAS DataBase Reference 25561-30-2(CAS DataBase Reference)
FDA UNII 5T8NA426KZ
NIST Chemistry Reference Bis(trimethylsilyl)trifluoroacetamide(25561-30-2)
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Corrosion (GHS05)Exclamation Mark (GHS07)
GHS02,GHS05,GHS07
Signal word  Danger
Hazard statements  H225-H302-H314
Precautionary statements  P210-P233-P280-P301+P312-P303+P361+P353-P305+P351+P338
PPE Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Hazard Codes  C,F,T
Risk Statements  11-34-10-35-14
Safety Statements  26-36/37/39-45-16
RIDADR  UN 2924 3/PG 3
WGK Germany  3
F  10-21
Hazard Note  Flammable/Moisture Sensitive
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29310095
Storage Class 3 - Flammable liquids
Hazard Classifications Acute Tox. 4 Oral
Eye Dam. 1
Flam. Liq. 2
Skin Corr. 1A
REACH Registrations Active
NFPA 704
3
3 1

Bis(trimethylsilyl)trifluoroacetamide price More Price(132)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich B-023 BSTFA (with 1% TMCS) kit of 10 × 1?mL, analytical standard, Cerilliant? 25561-30-2 10x1mL $109 2026-04-30 Buy
Sigma-Aldrich 15222 N,O-Bis(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur?, ≥99.0% 25561-30-2 1mL $33.8 2026-04-30 Buy
Sigma-Aldrich 15222 N,O-Bis(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur?, ≥99.0% 25561-30-2 5ml $87.1 2026-04-30 Buy
Sigma-Aldrich 15222 N,O-Bis(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur?, ≥99.0% 25561-30-2 25mL $217 2026-04-30 Buy
Sigma-Aldrich 15222 N,O-Bis(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur?, ≥99.0% 25561-30-2 10x1mL $318 2026-04-30 Buy
Product number Packaging Price Buy
B-023 10x1mL $109 Buy
15222 1mL $33.8 Buy
15222 5ml $87.1 Buy
15222 25mL $217 Buy
15222 10x1mL $318 Buy

Bis(trimethylsilyl)trifluoroacetamide Chemical Properties,Uses,Production

Uses

Bis(trimethylsilyl)trifluoroacetamide is used for synthesis of pharmaceutical intermediates.

Chemical Properties

Clear to yellowish clear liquid

Uses

N,O-bis(trimethylsilyl)-trifluoroacetamide (BSTFA) is similar to BSA in specificity of modification and there are several studies which have used both reagents.One study found BSTFA superior to BSA in product stability and yield of derivative. Another study compared several trimethylsilyl donors for end-capping of silica and observed that BSTFA was more reactive than BSA but less reactive than TMCim. Both BSA and BSTFA were used to prepare trimethylsilyl derivatives of pyrimidines and purines.Current work has used BSTFA for metabolomics analysis of urine,for the measurement of khatamines (psychoactive amines of khat (Catha edulis Forsk), and for the measurement of acrylamide in cocoa.

Uses

N,O-Bis(trimethylsilyl)trifluoroacetamide is used for analytical purposes or as a chemical reagent for synthesis of more complex molecules. It is silylation reagent useful in GC and GC-MS for the derivatization of a wide range of functional groups under mild conditions. It is also used as DAT inhibitor and a SLC6A2 inhibitor. It is routinely used to derivatize carboxylic acids, phenols, steroids, amines, alcohols, and alkaloids and amides.

Uses

Used as a reactant in the preparation of pyrimidinone ribosides and analogs that show anti-tumor properties.

Definition

ChEBI: A silyl ether that is the N,O-bis(trimethylsilyl) derivative of trifluoroacetamide. N,O-bis(trimethylsilyl)trifluoroacetamide is a derivatisation agent used in gas chromatography/m ss spectrometry applications.

General Description

Bis(trimethylsilyl)trifluoroacetamide with trimethylchlorosilane has found application to be used in gas chromatography (GC) and mass-spectrometry (MS). It can also be used in HPLC- electrochemical detection assay of 8-oxo-deoxyguanosine and8-oxo-guanine.

reaction suitability

reagent type: derivatization reagent
reaction type: Silylations

Synthesis

A process for N,O-bis-trimethylsilyltrifluoroacetamide:
N,O-bis-trimethylsilyltrifluoroacetamide, whose molecular formula is CF3CON[(CH3)3Si]2, is a kind of methylsilylating reagent, which is composed of raw materials of trimethylchlorosilane, triethylamine, and trifluoroacetamide, and is characterized in the following way: the said raw materials of trimethylchlorosilane, triethylamine, and trifluoroacetamide are in the ratio of moles of 1.2-4:2-4:1, respectively, and the process of synthesizing N,O-bis-trimethylsilyltrifluoroacetamide is to put into the reactor when synthesizing. The synthesized N,O-bis(trimethylsilyl)trifluoroacetamide is synthesized by putting triethylamine and trifluoroacetamide into the reactor and stirring for 1 hour, and then adding chlorotrimethylsilane dropwise into the reactor under the protection of N2 gas, controlling the temperature in the range of <50, and refilling it in 2-6 hours, and then protecting the reaction in 40-65 for 8-16 hours, and then lowering the temperature to less than 35 and discharging the material at the end of the reaction. The finished reaction material is added to the closed centrifuge for solid-liquid separation, and the mother liquor is sent to the concentration kettle for concentration, the concentration temperature is controlled between 60-100, and the pressure is from -0.2 to -08 atmospheric pressure. Then the concentrated mother liquor will be sent to distillation kettle for distillation, the distillation conditions: temperature control at 60-100 , pressure of -0.2 to -0.998 atmospheric pressure, tower height of 6-15 meters, after distillation of colorless and transparent liquids, and then packaged under the protection of N2 gas to get its finished products.

Bis(trimethylsilyl)trifluoroacetamide Preparation Products And Raw materials

Global( 597)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Medfine Bio-pharmaceutical Co., Ltd
+86-86-13013810076 +8619921460217 tina.lv@bio-medfine.com China 297 58
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20122 58
airuikechemical co., ltd. 		+86-18353166132 sales02@airuikechemical.com China 983 58
Capot Chemical Co.,Ltd. 		+86-（0）57185586718 +86-13336195806 sales@capot.com China 29640 60
Shanghai Daken Advanced Materials Co.,Ltd 		+86-2158073036 info@dakenam.com China 13901 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21587 55
Fluoropharm Co., Ltd. 		+86-0571-85586753 +86-13336034509 sales@fluoropharm.com China 1445 60
ATK CHEMICAL COMPANY LIMITED 		+undefined-21-51877795 ivan@atkchemical.com China 33024 60
Tianjin Zhongxin Chemtech Co., Ltd. 		86-22-66880623 +8618622897568 sales@tjzxchem.com China 572 58
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29815 58

View Lastest Price from Bis(trimethylsilyl)trifluoroacetamide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Bis(trimethylsilyl)trifluoroacetamide pictures 2026-06-08 Bis(trimethylsilyl)trifluoroacetamide
25561-30-2
 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
BSTFA-TMCS pictures 2026-05-11 BSTFA-TMCS
25561-30-2
 10g TargetMol Chemicals Inc.
Bis(trimethylsilyl)trifluoroacetamide pictures 2026-03-20 Bis(trimethylsilyl)trifluoroacetamide
25561-30-2
 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
BSTFA containing 1% TMCS N,O-Bis(trimethylsily)trifluoroamide N,O-bis(trimethylsilyl)acetamide,*with 10% N,O-Bis(trimethylsilyl)trifluoroacetamide, contains 10% TMCS Bis(trimethylsilyl)trifluoroacetamide for gas chromatography Acetamide, 2,2,2-trifluoro-O,N-bis(trimethylsilyl)- Ethanimidic acid, 2,2,2-trifluoro-N-(trimethylsilyl)-, trimethylsilyl ester N,O-bis(trimehylsilyl)trifluoroacetamide bis(Trifluoromethylsilyl)trifluoroacetamide BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE, 9 9+%, DERIVATIZATION GRADE BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE*(B STFA) BULK BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE, 9 9+% N,O-BIS-(TRIMETHYLSILYL)-TRIFLUOR-ACETAM ID, PURISS.>99% (GC) N,O-BIS(TRIMETHYLSILYL)TRIFLUORO-ACETAMI DE, FOR GC BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE*(B STFA) WITH BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE*(B STFA) SEALE N,O-BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE WITH TRIMETHYLCHLOROSILANE, 98% (EXCLUDING TMCS) BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE, 9 9%, WITH 1% TMCS N,O-BIS(TRIMETHYLSILYL)TRIFLUOROACET-AMI DE, PGE 10 X 1 ML N,O-BIS(TRIMETHYLSILYL)TRIFLUOROACET-AMI DE WITH 1% TMCS N,O-BIS(TRIMETHYLSILYL)TRIFLUOROACET-AMI DE 1% TMCS 10X1ML BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE 99% WITH 1%TMCS PACKAGED UNDER ARGON IN RESEALABLE CHEMSEAL– BOTTLES N,O-BIS(TRIMETHYLSILYL) TRIFLUOROACETAMIDE 98+% N.O-Bis(Trimethylsilyl)Trifluoroacetamide(Bstfa),Finasteride N,O-Bis(trimethylsilyl)trifluoroacetamide, 98+% , BSTFA BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE WITH 10%TMCS BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE(BSTFA) N,O-Bis(trimethylsilyl)trifluoroacetamide99+% N,O-Bis(trimethylsilyl)trifluoroacetamide, packaged in 1 ml ampules, 98% N,O-Bis(trimethylsilyl)trifluoroacetamide, with 1% trimethylsilyl chloride N,0-Bis(trimethylsilyl)trifluoroacetamideBSTFA bstfa + tmcs 2,2,2-Trifluoro-1-trimethylsiloxy-N-trimethylsilylethanimine 2,2,2-Trifluoro-N-(trimethylsilyl)acetimidic acid trimethylsilyl ester 2,2,2-Trifluoro-N-(trimethylsilyl)ethanimidic acid trimethylsilyl ester N-(Trimethylsilyl)-1-(trimethylsilyloxy)-2,2,2-trifluoroethanimine N,O-Bis(trimethylsilyl)trifluoroacetamide, with 1% TMCS, packaged under Argon in resealable ChemSeal^t bottles N,O-Bis(trimethylsilyl)trifluoroacetamide, with 1% TMCS, packaged under Argon in resealable ChemSeal N,O-Bis(trimethylsilyl)trifluoroacetamide, 99+%, packaged under Argon in resealable ChemSeal^t bottl BSTFA-TMCS (99:1) [Derivatizing Reagent for GC] BSTFA [=N,O-Bis(trimethylsilyl)trifluoroacetamide] N,O-Bis(trimethylsilyl)trifluoroacetamide ,97.5% N,O-Bis(trimethylsilyl)trifluoroacetamide with trimethylchlorosilane,BSTFA + TMCS, Silylating mixture Fluka V N,O-Bis(trimethylsilyl)trifluoroacetamide with trimethylchlorosilane,BSTFA + TMCS BSTFA (with 1% TMCS), 10 amps. N,O-Bis(trimethylsilyl)trifluoroacetamide, packaged in 1 ml ampoules, 98% N,O-Bis(trimethylsilyl)trifluoroacetamide derivatization grade N,O-Bis(trimethylsilyl)trifluoroacetamide, 99+%, packaged under Argon in resealable ChemSeal^t bottles BSTFA (with 1% TMCS) Trimethylsilyl (1Z)-2,2,2-trifluoro-N-[(Z)-trimethylsilyl]ethanimidoate LABOTEST-BB LT00453960 BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE BIS(TRIMETHYL)TRIFLUOROACETAMIDE SILYLATING MIXTURE FLUKA V REGISIL RC-1 REGISIL RC-2 REGISIL RC-3 REGISIL(R) RC-1
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