N-Methyl-N-(trimethylsilyl)trifluoracetamid
N-methyl-N-(trimethylsilyl)trifluoroacetamide
Grundinformationen
- CAS
24589-78-4- Standard-SMILES
CN(C(=O)C(F)(F)F)[Si](C)(C)C- InChIKey
MSPCIZMDDUQPGJ-UHFFFAOYSA-N- Summenformel
- C6H12F3NOSi
- Durchschnittliche Molmasse
- 199,25 g/mol
- Monoisotopische Masse
- 199,06402519
Überblick
N-methyl-N-(trimethylsilyl)trifluoroacetamide is an N-silyl compound that is N-methyltrifluoroacetamide in which the amide nitrogen is replaced by a trimethylsilyl group. N-methyl-N-(trimethylsilyl)trifluoroacetamide is a derivatisation agent used in gas chromatography/mass spectrometry applications. It has a role as a chromatographic reagent. It is a trifluoroacetamide, a monocarboxylic acid amide and a N-silyl compound.
Namen und Bezeichner
- Bevorzugter Name
- N-methyl-N-(trimethylsilyl)trifluoroacetamide
- IUPAC
- 2,2,2-trifluoro-N-methyl-N-trimethylsilylacetamide
- Lokaler Name
- N-Methyl-N-(trimethylsilyl)trifluoracetamid
- Englischer Name
- N-Methyl-N-(trimethylsilyl)trifluoroacetamide
- Summenformel
- C6H12F3NOSi
- Molmasse
- 199.25
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
24589-78-4- PubChem CID
- 32510
- DTXSID
DTXSID5067003- ChEBI
CHEBI:85064- EC Number
- 246-331-6
- Nikkaji
- J54.125G
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 20,3 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 4
- Frei drehbare Bindungen
- 1
- Schwere Atome
- 12
- Formalladung
- 0
- Komplexität
- 184
Experimentelle und physikochemische Eigenschaften
Physikochemische Eigenschaften
- Schmelzpunkt
- 98 · 98-100°C
- Siedepunkt
- 130132 °C · 130132°C
- Dichte
- 1.075 g/mL · 1.075 g/mL at 25 °C(lit.)
- Dampfdichte
- 1 · >1 (vs air)
- Dampfdruck
- 8.8 mm · 8.8 mm Hg ( 27 °C)
- Brechungsindex
- 20 · n20/D 1.383
- Flammpunkt
- 77 °F · 77 °F
- storage temp.
- 2 · 2-8°C
- Löslichkeit
- Chloroform (Slightly), Ethyl Acetate (Slightly)
- Aggregatzustand
- Liquid
- pka
- -1.34 · -1.34±0.70(Predicted)
- Farbe
- Clear colorless to light yellow
- Wichte
- 1.076 · 1.076
- Wasserlöslichkeit
- reacts
- BRN
- 1941550 · 1941550
- Major Application
- forensics and toxicology
- InChI
- 1S/C6H12F3NOSi/c1-10(12(2,3)4)5(11)6(7,8)9/h1-4H3
- InChIKey
- MSPCIZMDDUQPGJ-UHFFFAOYSA-N
- SMILES
- CN(C(=O)C(F)(F)F)[Si](C)(C)C
- CAS Datenbank
- 24589 · 24589-78-4(CAS DataBase Reference)
- EPA chemische Informationen
- 2 · Acetamide, 2,2,2-trifluoro-N-methyl-N-(trimethylsilyl)- (24589-78-4)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
Warning
H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 59 reports by companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Regulatory Information
Chemical: Acetamide, 2,2,2-trifluoro-N-methyl-N-(trimethylsilyl)-
2,2,2-Trifluoro-N-methyl-N-(trimethylsilyl) acetamide: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Causes decreased immune response in intraperitoneal lethal-dose studies of mice (LDLo = 1,000 mg/kg); [RTECS] A skin and strong eye irritant; [Sigma-Aldrich MSDS] See N-Methyl-N-(tert-butyldimethylsilyl)trifluoroacetamide. See N-Methyl-bis(trifluoroacetamide).
Sicherheitsdaten
- F
- 10-21
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 1993 3/PG 3
- hs_code
- 29319090
- RTECS-Nr.
- AC9800000
- risk_code
- 10-36/37/38-61-50/53-51/53
- hazard_code
- Xi,F,T,N
- hazard_note
- Flammable
- safety_code
- 26-36-37/39-16-45-53-61
- hazard_class
- 3
- packing_group
- III
- Speicherklasse
- 3 - Flammable liquids
- Hazard Classifications
- Eye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3
Chemie und Industrie
Verwendung und Herstellung
Uses
Derivatization, especially silylation, is commonly used to identify and quantify both known and unknown compounds using GC-MS. It is not limited to small molecules. Even peptides can be silylated, especially when the introduction of deuterium is desired. N-Methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA) is a very versatile reagent because it can be used to derivatize many of the functional groups commonly found in organic compounds. It operates by attachment of a nonpolar trimethylsilyl (TMS) group. [Sigma-Aldrich]
Anwendungen
VerwendenN-Methyl-N-(trimethylsilyl)trifluoroacetamide is used as a silylating reagent that forms volatile derivatives for GC-MS analysis. It acts as a pharmaceutical intermediate and metabolite of Famprofazone in humans. It is also used in the detection of steroid hormones 17-alfa-ethynylestradiol and estrone.
Vor- und nachgelagerte Produkte
Vorgelagerte Rohstoffe
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Ergänzende Hinweise
DefinitionChEBI: An N-silyl compound that is N-methyltrifluoroacetamide in which the amide nitrogen is replaced by a trimethylsilyl group. N-methyl-N-(trimethylsilyl)trifluoroacetamide is a derivat sation agent used in gas chromatography/mass spectrometry applications.
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