1.04199
Methyl blue (C.I. 42780)
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关于此项目
经验公式（希尔记法）:
C37H27N3Na2O9S3
化学文摘社编号:
分子量:
799.80
NACRES:
NA.21
UNSPSC Code:
41116130
MDL number:
InChI
1S/C37H29N3O9S3.2Na/c41-50(42,43)34-10-4-1-7-31(34)38-28-19-13-25(14-20-28)37(26-15-21-29(22-16-26)39-32-8-2-5-11-35(32)51(44,45)46)27-17-23-30(24-18-27)40-33-9-3-6-12-36(33)52(47,48)49;;/h1-24,38-39H,(H,41,42,43)(H,44,45,46)(H,47,48,49);;/q;2*+1/p-3
InChI key
TUHAIJABPUJAEY-UHFFFAOYSA-K
form
solid
potency
>5000 mg/kg LD50, oral (Rat)
composition
Dye, ≥60% spectrophotometric assay
pH
5.0 (20 °C, 10 g/L in H2O)
solubility
70 g/L
bulk density
670 kg/m3
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
2-30°C
Quality Level
General description
Methyl blue (C.I.42780), is a dry dye for the preparation of a color staining solution used for the polychrome staining of histological tissue sections of human origin. The dye has a constant dye content and a reliable high quality, which is one of the major precondition for a reproducible diagnostic staining.
Application
for microscopy
Analysis Note
Dye content (spectrophotometrically): ≥ 60 %
Identity
- sodium:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (Hydrochloric acid 0.005 mol/l): 595 - 605 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; hydrochloric acid 0.005 mol/l): 675 - 1125
TLC-Test: passes test
Loss on drying (110 °C): ≤ 7 %
Suitability for microscopy: passes test
Identity
- sodium:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (Hydrochloric acid 0.005 mol/l): 595 - 605 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; hydrochloric acid 0.005 mol/l): 675 - 1125
TLC-Test: passes test
Loss on drying (110 °C): ≤ 7 %
Suitability for microscopy: passes test
存储类别
13 - Non Combustible Solids
wgk
WGK 2
flash_point_f
572.0 °F - Pensky-Martens closed cup
flash_point_c
> 300 °C - Pensky-Martens closed cup
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