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Merck
CN

556416

New Methylene Blue N

Dye content ~70 %

Synonym(s):

Basic Blue 24, Methylene Blue N

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About This Item

Empirical Formula (Hill Notation):
C18H22ClN3S
CAS Number:
1934-16-3
Molecular Weight:
347.91
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24879556
EC Number:
217-696-9
Colour Index Number:
52030
MDL number:
MFCD00135878

Key Documents

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Product Name

New Methylene Blue N, Dye content ~70 %

InChI key

NZYCYASKVWSANA-UHFFFAOYSA-M

InChI

1S/C18H22N3S.ClH/c1-5-19-13-9-17-15(7-11(13)3)21-16-8-12(4)14(20-6-2)10-18(16)22-17;/h7-10,19-20H,5-6H2,1-4H3;1H/q+1;/p-1

SMILES string

[Cl-].CCNc1cc2[s+]c3cc(NCC)c(C)cc3nc2cc1C

form

powder, crystals or chunks

composition

Dye content, ~70%

technique(s)

microbe id | staining: suitable

mp

190 °C (dec.) (lit.)

λmax

590 nm
632 nm (2nd)

εmax

≥29000 at 626-634 nm in water
≥30500 at 586-594 nm in water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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Application

New methylene blue N has been used as a photosensitizer for the photodynamic inactivation of Candida albicans.

Biochem/physiol Actions

New methylene blue N can bind, neutralize and crosslink with RNA. This causes co-precipitation of ribosomal and residual RNA with the mitochondria and ferritin masses. These events make the living young erythrocytes as microscopically visible, dark-blue clusters and filaments, referred to as reticulum. New Methylene Blue N helps in counting of reticulocytes (erythrocytes containing RNA).

Features and Benefits

Solvent soluble cationic thiazine dye

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000376807
0000376807
0000164445
0000164445
SHBN9708

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I Rabaey et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 52(1-2), 515-523 (2005-09-27)
Microbial fuel cells which are operated in continuous mode are more suitable for practical applications than fed batch ones. Three influent types containing carbohydrates were tested, i.e. a glucose medium, a plant extract and artificial wastewater. The anode reactor compartment
Immature reticulocyte fraction as a criterion for marrow engraftment. Evaluation of a semi-automated reticulocyte counting method.
H Z Grotto et al.
Clinical and laboratory haematology, 21(4), 285-287 (1999-12-03)
Turgeon ML
Linne & Ringsrud's Clinical Laboratory Science: The Basics and Routine Techniques (2014)
S K Lai et al.
Clinical and laboratory haematology, 21(4), 261-264 (1999-12-03)
Hb-H disease is a form of alpha-thalassemia commonly found in south-east Asia. In this condition, numerous Hb-H bodies are found in erythrocytes using reticulocyte staining preparations. This is the first study addressing the possible interference of Hb-H inclusions in automated
Tianhong Dai et al.
Antimicrobial agents and chemotherapy, 55(12), 5710-5717 (2011-09-21)
The objective of this study was to investigate photodynamic therapy (PDT), using blue dye and red light, for prophylaxis and treatment of cutaneous Candida albicans infections in mice. A mouse model of skin abrasion infected with C. albicans was developed
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