Molekula
N,O-bis(Trimethylsilyl)trifluoroacetamide with trimetylchlorosilane for GC
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
N,O-bis(Trimethylsilyl)trifluoroacetamide (BSTFA) with trimethylchlorosilane (TMCS) is a derivatization reagent used in gas chromatography (GC) to improve the volatility and thermal stability of polar compounds. It converts hydroxyl, amino, and carboxyl groups into trimethylsilyl (TMS) derivatives for better chromatographic separation. CAS 25561-30-2, molecular formula CF3C[=NSi(CH3)3]OSi(CH3)3, molecular weight 257.40 g/mol. Store at ambient conditions. Signal word: Danger. Molekula supplies N,O-bis(Trimethylsilyl)trifluoroacetamide with trimethylchlorosilane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless to light yellow liquid |
| Refractive Index | 1.3825 - 1.3949 (20°C) |
| Purity (GC) | ⩾ 98.5% |
| Identification (RAMAN) | Conforms to Reference |
| GC Minor Component | 0.8 - 1.5% (area %) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 24 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90034814 |
| CAS Number | 25561-30-2 |
| Molecular Formula | CF3C[=NSi(CH3)3]OSi(CH3)3 |
| Molecular Weight | 257.40 |
| SMILES | FC(F)(F)C(=N[Si](C)(C)C)O[Si](C)(C)C |
| UN Number | UN1993 |
| REACH Code | Y110 |
| HTS Code | 29319090 |
| Tariff Code | 2931900090 |
Safety & GHS
-
Flammable
GHS02
-
Health Hazard
GHS07
Hazard statements
- H226 Flammable liquid and vapour
- H315 Causes skin irritation
- H319 Causes serious eye irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is N,O-bis(Trimethylsilyl)trifluoroacetamide (BSTFA) with TMCS used for?
BSTFA with TMCS is primarily used as a derivatization reagent in gas chromatography (GC) to convert polar, non-volatile compounds into volatile, trimethylsilyl (TMS) derivatives for improved separation and detection.
What is the molecular formula and molecular weight of BSTFA with TMCS?
The molecular formula is **CF₃C[=NSi(CH₃)₃]OSi(CH₃)₃** and the molecular weight is **257.40 g/mol**.
What safety classification does BSTFA with TMCS have?
The product carries the signal word 'Danger'. Its hazard statements are H226 (flammable liquid and vapour), H315 (causes skin irritation) and H319 (causes serious eye irritation).
How should BSTFA with TMCS be stored?
Store BSTFA with TMCS at **ambient temperature** in a tightly sealed container, away from moisture and incompatible substances.
Does Molekula supply BSTFA with TMCS in bulk quantities?
Yes, Molekula can supply BSTFA with TMCS in bulk, with quantities tailored to your research or industrial needs.
What documentation comes with an order of BSTFA with TMCS?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and a **product specification sheet** for reference.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.