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

???????? ???

???????? ???
???????? ??? ??? ???
?? ??:
56-34-8
???:
???????? ???
???:
Tetraethylammonium Chloride
???(??):
teac;Tetraethylammonium;TEA CHLORIDE;ETAMON CHLORIDE;tetraethylazaniuM chloride;SKL1479;N2,2,2,2Cl;ammonium chL;Ethamon chloride;Tetraethylammonium choride
CBNumber:
CB4136114
???:
C8H20ClN
??? ??:
165.7
MOL ??:
56-34-8.mol
MSDS ??:
SDS

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

???
39°C
?? ?
273.32°C (rough estimate)
??
1.08
???
1.5480 (estimate)
?? ??
Inert atmosphere,Room Temperature
???
???: 0.1 g/mL, ??, ??
??? ??
??? ??
??
???? ?? ???
??????(pH)
4.0 to 7.0(50g/L, 25℃)
???? ??
synthetic (organic)
???
?, ???, ????? ?? ???? ???
?? ??(λmax)
λ: 260 nm Amax: 0.03
λ: 280 nm Amax: 0.03
??
Hygroscopic
Merck
14,9200
BRN
3563247
???
????. ?? ???? ???? ????. ????? ??????.
InChI
1S/C8H20N.ClH/c1-5-9(6-2,7-3)8-4;/h5-8H2,1-4H3;1H/q+1;/p-1
InChIKey
YMBCJWGVCUEGHA-UHFFFAOYSA-M
SMILES
[Cl-].CC[N+](CC)(CC)CC
CAS ??????
56-34-8(CAS DataBase Reference)
EPA
Tetraethylammonium chloride (56-34-8)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xn,Xi
?? ???? ?? 22-36/37/38
????? 26-36-37/39
WGK ?? 3
RTECS ?? BS6125000
F ?????? 3-10
TSCA TSCA listed
HS ?? 29239000
???? ??? 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
?? LD50 i.v. in dogs: 55.7-72.4 mg/kg (Keith, Jr.)
???? ?? 2012-3-5572
????(GHS): Exclamation Mark (GHS07)
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? P264, P280, P305+P351+P338,P337+P313P
??????:
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P332+P313 ?? ??? ??? ???? ??· ??? ????.
P337+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
0
2 0

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


TEA chloride

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

??? ??

Tetraethylammonium Chloride is a white crystalline powder. The solubility is 1000000 mg/L at 25 °C.

??

Tetraethylammonium Chloride can be used as a source of tetraethylammonium ions for various pharmaceutical studies and has the ability to block K+ channels in various tissues. Tetraethylammonium Chloride can also block the transmission of nervous impulses across autonomic ganglions.

??

ChEBI: Tetraethylammonium chloride is a quarternary ammonium chloride salt in which the cation has four ethyl substituents around the central nitrogen. It has a role as a potassium channel blocker. It is a quaternary ammonium salt and an organic chloride salt. It contains a tetraethylammonium.

?? ??

Visit our Sensor Applications portal to learn more.

???? ??

Non-selective K + channel blocker.

Purification Methods

Crystallise the chloride from EtOH by adding diethyl ether, from warm water by adding EtOH and diethyl ether, from dimethylacetamide or from CH2Cl2 by addition of diethyl ether. Dry it over P2O5 in vacuum for several days. It also crystallises from acetone/CH2Cl2/hexane (2:2:1) [Blau & Espenson J Am Chem Soc 108 1962 1986, White & Murray J Am Chem Soc 109 2576 1987]. [Beilstein 4 IV 332.]

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

???

?? ??


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

???( 567)?? ??
??? ?? ??? ?? ?? ? ??
Hebei Chuanghai Biotechnology Co., Ltd
+86-15350571055
Sibel@chuanghaibio.com China 8738 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-86-13131129325
sales1@chuanghaibio.com China 5218 58
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652
info@fdachem.com China 20120 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
13343047651
admin@zlchemi.com China 3692 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29640 60
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21585 55
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795
ivan@atkchemical.com China 33024 60
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679 +86-18949832763
info@tnjchem.com China 2988 55
career henan chemical co
+86-0371-86658258
sales@coreychem.com China 29812 58
Jinan Finer Chemical Co., Ltd
+86-531-88989536 +86-15508631887
sales@finerchem.com China 2950 58

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

Copyright 2019 ? ChemicalBook. All rights reserved
天峨县| 鄂托克前旗| 泽普县| 兴业县| 牙克石市| 北流市| 兰西县| 海南省| 滦南县| 和平县| 西林县| 福泉市| 青铜峡市| 山西省| 常德市| 栾城县| 永安市| 土默特右旗| 临湘市| 巨鹿县| 通许县| 临沂市| 长沙县| 盐山县| 晋州市| 乐安县| 昭觉县| 乌苏市| 上思县| 增城市| 和平区| 内江市| 岑溪市| 建昌县| 西乌| 嵩明县| 榆林市| 榕江县| 如皋市| 宜阳县| 晋宁县|