A fluorescent compound or a salt thereof represented by General Formulae (I) or (II) shown below:
In the General Formulae (1) and (II) shown above, R
1
and R
11
represent an alkyl group or an ω-aminoalkyl group, R
2
and R
12
represent a hydrogen atom or a alkyl group, R
3
and R
13
represent an atomic group represented by a formula —(CH
2
)
m
— (m is a natural number of 10 or less), R
4
and R
14
represent an atomic group represented by a formula —CH
2
— or —NR
6
— (—NR
16
—) (R
6
and R
16
represent an alkyl group), R
5
and R
15
represent an atomic group represented by a formula —(CH
2
)
n
— (n is a natural number of or less), R represents an atomic group represented by any one of formulae —NH
2
, —NHR
7
—, NR
7
R
8
and —NR
7
R
8
R
9
(—NHR
17
, —NR
17
R
18
and —N
+
R
17
R
18
R
19
) (R
7
, R
8
, R
9
, R
17
, R
18
and R
19
independently represents an alkyl group, respectively) and when R
2
and R
12
are alkyl groups and R
4
(R
14
) is an atomic group represented by the formula —NR
6
—(—NR
16
—), R
2
and R
6
and R
12
and R
16
may bind with each other to form a ring.
下面显示的一般式(I)或(II)代表的荧光化合物或其盐:在上述的一般式(I)和(II)中,R1和R11代表烷基或ω-
氨基烷基,R2和R12代表氢原子或烷基,R3和R13代表由式—(
CH2)m—(m为不超过10的自然数)表示的原子团,R4和R14代表由式— —或—NR6—(—NR16—)表示的原子团(R6和R16代表烷基),R5和R15代表由式—( )n—(n为不超过的自然数)表示的原子团,R代表由下列任一式—NH2、—NHR7—、NR7R8和—NR7R8R9(—NHR17、—NR17R18和—N+R17R18R19)表示的原子团(R7、R8、R9、R17、R18和R19分别独立地代表烷基),当R2和R12为烷基且R4(R14)为由式—NR6—(—NR16—)表示的原子团时,R2和R6以及R12和R16可以结合形成环。