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Fast green FCF
C.I NO: 42053
C
37
H
34
N
2
Na
2
O
10
S
3
CAS-No: 2353-45-9
EC-No: 219-091-5
EC index No: -
M= 808.86 g/mol
Solubility in H
2
O -
Colour: Reddish brown
Odour: Odorless
pH value: Not applicable
Melting point: 290°C
Harmful
H-STATEMENT/EUH: H371 / P260; 264;270;
309+311;405; 501
HS-CODE: 3204.9000
LGK: 10-13
921.D01
Fast green FCF -
(C.I. 42053) For microscopy
Specification
Appearance Reddish brown coloured powder
Absorptionmaxima (ethanol 50%) 622 - 626nm
A1 %, 1 cm, max.
110
Ratio of max. P+/-15 nm
0.98 - 1.20
Loss on drying (110°C)
10 %
catalogue
number
921.D01.0010
921.D01.0025
921.D01.0050
921.D01.0100
packing
specs
plastic bottle
plastic bottle
plastic bottle
plastic bottle
pack
in box
6 pieces
6 pieces
6 pieces
6 pieces
weight
in pack
10 g
25 g
50 g
100 g
Fluorescein
C.I NO: 45350
C
20
H
12
O
5
CAS-No: 2321-07-5
EC-No: -
EC index No: -
M= 332.31 g/mol
Solubility in H
2
O -
Colour: Orange red powder
Odour: Odorless
pH value: Not applicable
Melting point: 320°C
Harmful
H-STATEMENT/EUH: H302;319 / P280;
264;270;301+312;305+351+338;337+313;501
HS-CODE: 3204.1200
LGK: -
923.D02
Fluorescein -
(C.I. 45350)
Specification
Appearance
Orange red brown
or maroon powder
Assay (on dried substance)
95 %
Solubility (in 1N NAOH)
50 mg/ml
Molar absorptivity E(490 ± 2nm)
70000
E(284 ± 2 nm)
12000
E(238 ± 2 nm)
39000
Loss on drying (at 105°C)
5.0 %
Melting point
about 315°C
catalogue
number
923.D02.0010
923.D02.0025
923.D02.0050
923.D02.0100
packing
specs
plastic bottle
plastic bottle
plastic bottle
plastic bottle
pack
in box
6 pieces
6 pieces
6 pieces
6 pieces
weight
in pack
10 g
25 g
50 g
100 g
Fluorescein sodium
C.I NO: 45350
C
20
H
10
Na
2
O
5
CAS-No: 518-47-8
EC-No: 208-253-0
EC index No: -
M= 376.27 g/mol
Solubility in H
2
O 500 g/l at 20°C
Colour: Dark red crystalline
Odour: Odorless
pH value: Not applicable
Melting point: > 300°C
-
H-STATEMENT/EUH: -
HS-CODE: 3204.1200
LGK: 10-13
923.D01
Fluorescein sodium -
(C.I. 45350)
Specification
Appearance
Orange-red to green-brown
to dark brown powder
Identity (IR)
passes test
Loss on drying (at 105 °C)
10 %
Absorptionmaxima(inbufferpH8.0) 488-491nm
UV absorbance ratio (P-15/P+10)
1.2 - 1.7
Specific absorptivity 1 %/1cm
(at Imax, buffer pH 8.0)
1700
catalogue
number
923.D01.0010
923.D01.0025
923.D01.0050
923.D01.0100
packing
specs
plastic bottle
plastic bottle
plastic bottle
plastic bottle
pack
in box
6 pieces
6 pieces
6 pieces
6 pieces
weight
in pack
10 g
25 g
50 g
100 g