钆双胺

中文名称 钆双铵
英文名称 Gadodiamide
中文别名 2-[双[2-(羧甲基-(甲基氨基甲酰甲基)氨基)乙基]氨基]乙酸钆;钆双胺;[5,8-双(羧基甲基)-11-[2- (甲氨基)-2-氧乙基]-3-氧-2,5,8,11-四氮杂十三烷-13-酸(3-)]镉;双胺镉
CAS RN 131410-48-5
EINECS号 
分 子 式 C16H26GdN5O8
分 子 量 573.6563

Description
 A white or almost white crystalline powder
 
Clarity of solution Conforms the standard
 
Idencification 
 
A:Infrared absorption should conforms with standard spectrum
 
B: The maximum absorption At the relevant wavelength specified
 
Microbial limits 500cfu/g
 
Bacterial endotoxins ＜3.5Eu/mg
 
Water 3.0%- 14.0%
 
Limit of  free gadolinium ≤0.3%(anhydrous basis)
 
Limit of free Diethylenetramine pentaacctic aoid bismethylamide ≤0.7%(anhydrous basis)
 
Limit of methylamine ≤0.05%
 
Limit of acctone,ethyl alcohol, isopropyl alcohol ≤0.2%(Sum of all)
 
Acetone ≤0.2%
 
Ethyl alcohol ≤0.2%
 
Isopropyl alcohol ≤0.2%
 
Total impurity ≤0.2%
 
Related comouds 
 
Impurity A
 ≤2.0%
 
Impurity B
 ≤2.0%
 
Individual Impurity
 ≤0.2%
 
Total impurity(except of impurity A and B
 ≤0.5%
 
Content of gadolinium
 26.0%-29.0%
 
Assay
 97.0%-103.0%