基本情報
- 標準SMILES
CN(C(=O)C(F)(F)F)[Si](C)(C)C- InChIKey
MSPCIZMDDUQPGJ-UHFFFAOYSA-N- 分子式
- C6H12F3NOSi
- 平均分子量
- 199.25 g/mol
- 単同位体質量
- 199.06402519
概要
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.
名称と識別子
- 優先名称
- N-methyl-N-(trimethylsilyl)trifluoroacetamide
- IUPAC
- 2,2,2-trifluoro-N-methyl-N-trimethylsilylacetamide
- 現地名
- N-メチル-N-トリメチルシリルトリフルオロアセトアミド
- 英語名
- N-Methyl-N-(trimethylsilyl)trifluoroacetamide
- 分子式
- C6H12F3NOSi
- 分子量
- 199.25
名称と別名
名称をさらに表示
データベース識別子
- CAS
24589-78-4- PubChem CID
- 32510
- DTXSID
DTXSID5067003- ChEBI
CHEBI:85064- EC Number
- 246-331-6
- Nikkaji
- J54.125G
物性
構造計算による物性
- 極性表面積
- 20.3 Ų
- 水素結合供与体数
- 0
- 水素結合受容体数
- 4
- 回転可能結合数
- 1
- 重原子数
- 12
- 形式電荷
- 0
- 複雑度
- 184
実験および物理化学的性質
物理化学的性質
- 融点
- 98 · 98-100°C
- 沸点
- 130132 °C · 130132°C
- 比重(密度)
- 1.075 g/mL · 1.075 g/mL at 25 °C(lit.)
- 蒸気密度
- 1 · >1 (vs air)
- 蒸気圧
- 8.8 mm · 8.8 mm Hg ( 27 °C)
- 屈折率
- 20 · n20/D 1.383
- 闪点
- 77 °F · 77 °F
- 貯蔵温度
- 2 · 2-8°C
- 溶解性
- Chloroform (Slightly), Ethyl Acetate (Slightly)
- 外見
- 液体
- 酸解離定数(Pka)
- -1.34 · -1.34±0.70(Predicted)
- 色
- 無色透明~薄黄色
- 比重
- 1.076 · 1.076
- 水溶解度
- 反応する
- BRN
- 1941550 · 1941550
- 主な用途
- 法医学と毒物学
- 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 データベース
- 24589 · 24589-78-4(CAS DataBase Reference)
- EPAの化学物質情報
- 2 · Acetamide, 2,2,2-trifluoro-N-methyl-N-(trimethylsilyl)- (24589-78-4)
化学的性質
化学的特性Clear colorless to light yellow liquid
安全と法規制
GHS分類
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.
危険有害性情報
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).
安全データ
- F
- 10-21
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- AC9800000
- ridadr
- UN 1993 3/PG 3
- hs_code
- 29319090
- risk_code
- 10-36/37/38-61-50/53-51/53
- 消防法
- 危-4-2-III
- 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
- Hazard Classifications
- Eye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3
- ストレージクラス
- 3 - Flammable liquids
化学と産業
用途と製造
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]
応用分野
使用N-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.
一般的な説明N-Methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA) is a derivatizing reagent. It can be used as alternatives to diazomethane.
調製方法
純化方法Fractionate the amide through a 40mm Vigreux column (p 11). Usually it contains ca 1% of methyl trifluoroacetamide and 1% of other impurities which can be removed by gas chromatography or fractionating using a spinning band column. [Donike J Chromatogr 42 103 1969, Donike J Chromatogr 103 91 1975, Beilstein 4 IV 4011.]
上流・下流製品情報
上流原料
サプライヤー50 社
補足説明
定義ChEBI: 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.
関連反応
関連ノート
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