作者ppoyi (我们都寂寞)
看板Chemistry
标题[学科] 请教 四级铵盐 2个不同名称 是否为同物质
时间Tue Jan 12 19:55:35 2016
1.
Benzalkonium chloride
2.
Cocobenzyl dimethyl ammonium chloride
- - -
Cocobenzyl dimethyl ammonium chloride这个品名是我需要的物质，
但拿到的COA是Benzalkonium chloride这个品名
我认为应该不同因为 根据药典的定义
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.
定义上是个混合物
而 Cocobenzyl dimethyl ammonium chloride [6189-71-7]
应该是指定C链 ?
所以2个品名是不同物质
有一篇文章
http://www.oem.msu.edu/userfiles/file/News/v20n1.pdf
里面写
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.
应该能支持这样的想法?
请教乡民了 拜托
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1F：→ kdjf: 问给你药的厂商啊... 01/12 23:29