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1.16316

Sigma-Aldrich

Methyl blue (C.I. 42780)

for microscopy

Synonym(s):

Methyl blue (C.I. 42780), Methyl blue for microscopy and microbiology

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50 MG
CA$2,440.00

CA$2,440.00


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50 MG
CA$2,440.00

About This Item

Empirical Formula (Hill Notation):
C37H27N3Na2O9S3
CAS Number:
Molecular Weight:
799.80
MDL number:
UNSPSC Code:
41116130
EC Index Number:
249-352-9

CA$2,440.00


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Quality Level

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

εmax

675-1125 at 595-605 nm in 5 mM HCl at 0.01 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

2-30°C

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1 of 4

This Item
WHA67037511WHA67037510WHA67037521
manufacturer/tradename

Whatman 6703-7550, Whatman Article No. 28420126 (US reference)

manufacturer/tradename

Whatman 6703-7511, Whatman Article No. 28420124 (US reference)

manufacturer/tradename

Whatman 6703-7510, Whatman Article No. 28420123 (US reference)

manufacturer/tradename

Whatman 6703-7521, Whatman Article No. 28420125 (US reference)

material

polypropylene housing, polypropylene membrane

material

polypropylene housing, polypropylene membrane

material

polypropylene housing, polypropylene membrane

material

polypropylene housing, polypropylene membrane

diam.

75 mm

diam.

75 mm

diam.

75 mm

diam.

75 mm

pore size

5 μm

pore size

10 μm

pore size

1 μm

pore size

20 μm

fitting

inlet Stepped barb for 10 to 12 mm (3/8 to 1/2 in.) tubing, outlet Stepped barb for 10 to 12 mm (3/8 to 1/2 in.) tubing

fitting

inlet Stepped barb for 10 to 12 mm (3/8 to 1/2 in.) tubing, outlet Stepped barb for 10 to 12 mm (3/8 to 1/2 in.) tubing

fitting

inlet Stepped barb for 10 to 12 mm (3/8 to 1/2 in.) tubing, outlet Stepped barb for 10 to 12 mm (3/8 to 1/2 in.) tubing

fitting

inlet Stepped barb for 6 to 10 mm (1/4 to 3/8 in.) tubing, outlet Stepped barb for 6 to 10 mm (1/4 to 3/8 in.) tubing

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

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 is a CE certified IVD product and has a constant dye content and a reliable high quality, which is one of the major precondition for a reproducible diagnostic staining. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

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

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

Flash Point(C)

> 300 °C - Pensky-Martens closed cup


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