作者ppoyi (我們都寂寞)
看板Chemistry
標題[學科] 請教 四級銨鹽 2個不同名稱 是否為同物質
時間Tue Jan 12 19:55:35 2016
1.
Benzalkonium chloride
2.
Cocobenzyl dimethyl ammonium chloride
- - -
Cocobenzyl dimethyl ammonium chloride這個品名是我需要的物質，
但拿到的COA是Benzalkonium chloride這個品名
我認為應該不同因為 根據藥典的定義
Benzalkonium Chloride [8001-54-5]
is a mixture of alkylbenzyldimethyl ammonium chlorides of the general formula:
[C6H5CH2N(CH3)2 R]Cl
in which R represents a mixture of alkyls, including all or some of the group
beginning with n-C8H17 and extending through higher homologs,
with n-C12H25, n-C14H29, and n-C16H33 composing the major portion.
定義上是個混合物
而 Cocobenzyl dimethyl ammonium chloride [6189-71-7]
應該是指定C鏈 ?
所以2個品名是不同物質
有一篇文章
http://www.oem.msu.edu/userfiles/file/News/v20n1.pdf
裡面寫
Benzalkonium chloride
(Synonym - Alkyl dimethyl benzyl ammonium chloride)
All of the following CAS#s are assigned to: Dimethyl benzyl ammonium chloride. The
specific CAS# depends on the mixture of carbon chain lengths:
8001-54-5;
61789-71-7; 68424-85-1; 68989-00-4;
122-18-9; 122-19-0; 68391-01-5; 8045-22-5; 53516-76-0; 68607-20-5.
應該能支持這樣的想法?
請教鄉民了 拜託
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