一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

?????????????

?????????????
????????????? ??? ???
?? ??:
354-38-1
???:
?????????????
???(??):
2,2,2-?????????????;?????????????;2,2,2-???????????
???:
Trifluoroacetamide
???(??):
2,2,2-TRIFLUOROACETAMIDE;CF3CONH2;Acetamide, 2,2,2-trifluoro-;Triflouroacetamide;2-TriflouroacetaMide;2,2,4-Trifluoroacetamide;Three-;TRIFLUOROACETAMIDE;Trifluoroacetamide98%;Three fluoroacetaMide
CBNumber:
CB0291820
???:
C2H2F3NO
??? ??:
113.04
MOL ??:
354-38-1.mol
MSDS ??:
SDS

????????????? ??

???
65-70 °C (lit.)
?? ?
162.5 °C (lit.)
??
1.4176 (estimate)
?? ??
960kg/m3
???
162-164°C
?? ??
Store below +30°C.
???
460g/L(20°C)
??? ??
??? ?? ?? ??
?? ?? (pKa)
12.33±0.50(Predicted)
??
???? ?? ??? ?? ????
??????(pH)
3.6 (460g/l, H2O, 23℃)
???
460g/L(20℃)
BRN
1753625
InChI
1S/C2H2F3NO/c3-2(4,5)1(6)7/h(H2,6,7)
InChIKey
NRKYWOKHZRQRJR-UHFFFAOYSA-N
SMILES
NC(=O)C(F)(F)F
LogP
0.725 at 23℃ and pH4.83
????
0 at 23℃
CAS ??????
354-38-1(CAS DataBase Reference)
NIST
Acetamide, 2,2,2-trifluoro-(354-38-1)
EPA
Acetamide, 2,2,2-trifluoro- (354-38-1)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 36/37/38
????? 26-36-37/39
????(UN No.) 1759
WGK ?? 3
?? ?? ?? Harmful/Irritant
TSCA TSCA listed
?? ?? 8
???? III
HS ?? 29241900
???? ??? 13 - Non Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
????(GHS): Exclamation Mark (GHS07)
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? P264, P270, P301+P312, P330, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? P264, P280, P305+P351+P338,P337+P313P
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ??
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P270 ? ??? ??? ??? ???, ???? ???? ???.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
NFPA 704
1
2

????????????? MSDS


2,2,2-Trifluoroacetamide

????????????? C??? ??, ??, ??

??? ??

white to pale yellow or beige crystalline powder

??

2,2,2-Trifluoroacetamide used in a convenient alternative to the Gabriel synthesis of primary amines from halides by N-alkylation followed by cleavage of the readily-hydrolyzed trifluoroacetyl group and for improved N-alkylation under phase-transfer conditions allowing successive alkylation with different alkyl groups.

?? ??

Trifluoroacetamide was used as probe for determination of membrane potential and extra/intracellular volume of erythrocytes by fluorine-19 NMR studies.

?? ??

Trifluoroacetamide is a good quencher of tryptophan fluorescence.

????????????? ?? ?? ? ???

???

?? ??


????????????? ?? ??

???( 508)?? ??
??? ?? ??? ?? ?? ? ??
CD Chemical Group Limited
+8615986615575
info@codchem.com China 17259 58
Anhui Yiao New Material Technology Co., Ltd
+86-18033737140 +86-17354101231
sales1@hbganmiao.com China 227 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615350571055
Sibel@chuanghaibio.com China 8738 58
Shaanxi Dideu Medichem Co. Ltd
+86-029-81138252 +86-173 9270 1263
1057@dideu.com China 3977 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-86-13131129325 +8613131129325
sales1@chuanghaibio.com China 5224 58
Hebei Zhuanglai Chemical Trading Co Ltd
+86-16264648883
niki@zlchemi.com China 7245 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 14014 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21586 55
Hangzhou FandaChem Co.,Ltd.
008657128800458; +8615858145714
FandaChem@Gmail.com China 1440 55

????????????? ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved
乌兰察布市| 久治县| 乌鲁木齐县| 乌苏市| 西畴县| 迭部县| 邮箱| 龙口市| 朝阳县| 贵阳市| 泰州市| 随州市| 甘洛县| 德化县| 芒康县| 张家口市| 定结县| 江华| 政和县| 洪江市| 宜兰县| 尼勒克县| 沙田区| 图木舒克市| 岗巴县| 曲阜市| 安泽县| 浦县| 霍城县| 苍山县| 紫阳县| 枣强县| 那坡县| 东乌珠穆沁旗| 金华市| 乐东| 汶上县| 高尔夫| 溧阳市| 红原县| 论坛|