化合物简介
Calcein, also known as fluorexon, fluorescein complex, is a fluorescent dye with excitation and emission wavelengths of 495/515nm, respectively, and has the appearance of orange crystals. Calcein self-quenches at concentrations above 70mM and is commonly used as an indicator of lipid vesicle leakage. It is also used traditionally as a complexometric indicator for titration of calcium ions with EDTA, and for fluorometric determination of calcium.
基本信息
中文名称
钙黄绿素
英文名称
calcein
中文别名
荧光素配位剂、3,3\'-双(甲胺二乙酸)荧光素、3,3\'-双(甲氨二乙酸)荧光素、3,3\'-双(甲亚胺二乙酸)荧光素
英文别名
Fluorescein complexon、2-[[7\'-[[bis(carboxymethyl)amino]methyl]-3\',6\'-dihydroxy-3-oxospiro[2-benzofuran-1,9\'-xanthene]-2\'-yl]methyl-(carboxymethyl)amino]acetic acid、Fluorescein-bis(methyliminodiacetic acid)、Oftasceinum、Bis[N,N−bis(carboxymethyl)aminomethyl]fluorescein、Oftasceina、Fluorexon、Oftasceine
CAS号
1461-15-0
分子式
C30H26N2O13
分子量
622.533
精确质量
622.143
PSA
231.67
LOGP
1.6082
编号系统
MDL号
MFCD00005049
PubChem号
24892279
EINECS号
215-957-1
BRN号
8181068
物化性质
外观与性状
橙色粉末
密度
1.74 g/cm3
沸点
952.7ºC at 760 mmHg
熔点
200 °C
闪点
530ºC
折射率
1.774
水溶解性
insoluble
稳定性
Stable. Incompatible with strong oxidizing agents.
储存条件
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
蒸汽压
0mmHg at 25°C
安全信息
安全说明
S22-S24/25-S36/37/39-S26
WGK Germany
3
危险类别码
R20/21/22; R36/37/38
海关编码
32041900
危险品标志
Xn
生产方法及用途
用途
络合指示剂用于钙、钢、锶、铜、锰等的测定
