861049
天青 A 氯化物
certified by the BSC, Dye content 70 %
别名:
Methylene blue
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关于此项目
经验公式（希尔记法）:
C14H14ClN3S
化学文摘社编号:
分子量:
291.80
EC Number:
208-510-7
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
MDL number:
Colour Index Number:
52005
Beilstein/REAXYS Number:
3922287
InChI key
NALREUIWICQLPS-UHFFFAOYSA-N
InChI
1S/C14H13N3S.ClH/c1-17(2)10-4-6-12-14(8-10)18-13-7-9(15)3-5-11(13)16-12;/h3-8,15H,1-2H3;1H
SMILES string
NC1=CC(SC(C2=N3)=CC(C=C2)=[N+](C)C)=C3C=C1.[Cl-]
agency
certified by the BSC
form
powder
composition
Dye content, 70%
color
blue to very dark blue, very dark green
mp
290 °C (dec.) (lit.)
solubility
H2O: 1 mg/mL
λmax
633 nm
ε (extinction coefficient)
≥11000 at 242-246 nm in H2O at -1, ≥26000 at 287-291 nm in H2O, ≥34000 at 620-634 μm in H2O
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
Quality Level
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Application
Azure A has been used to determine the amount of charged dextran sulfate in the nanoparticles for the study involving incorporation of heparin-binding proteins into preformed dextran sulfate-chitosan nanoparticles.
Certified for use in Lillie′s modified Nocht′s method and the NCCLS method for blood smears.
Biochem/physiol Actions
The combination of azure A and silver staining is used for the quantification of glycosaminoglycans in agarose gels. It is also used for the staining of chromosomes in the nucleus. Azure A is a main component of the azure B/polychromed methylene blue-eosin stains family, also referred to as the Romanowsky stain. Azure A is a basic cationic dye.
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Quantification and characterization of glycosaminoglycans at the nanogram level by a combined azure A-silver staining in agarose gels.
van de Lest CH, et al.
Analytical Biochemistry, 221, 356-361 (1994)
How Romanowsky stains work and why they remain valuable - including a proposed universal Romanowsky staining mechanism and a rational troubleshooting scheme.
Horobin RW
Biotechnic & Histochemistry, 86, 36-51 (2011)
C Vindigni et al.
International journal of cancer, 74(6), 637-641 (1998-01-08)
Mitotic (MI) and apoptotic index (AI), the sum of the 2, i.e., the turnover index (TI), tumor neovascularization (NV) and p53 expression, as well as tumor grading and node status, are evaluated in early and advanced gastric-cancer cases. T1 cases
Heterochromatin in human male leukocytes.
Lima-de-Faria A and Reitalu J
The Journal of Cell Biology, 16.2, 315-322 (1963)
C Priya et al.
Colloids and surfaces. B, Biointerfaces, 97, 90-96 (2012-05-23)
A novel non-enzymatic hydrogen peroxide sensor was developed using Azure A/gold nanoclusters modified graphite electrode. The method of preparation of Azure A/gold nanoclusters was simple and it was characterized by UV-visible spectroscopy, field emission scanning electron microscopy (FESEM) and confocal
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