Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

210684

Sigma-Aldrich

Acid Blue 25

Dye content 45 %

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
C20H13N2NaO5S
CAS Number:
6408-78-2
Molecular Weight:
416.38
Colour Index Number:
62055
EC Number:
229-068-1
MDL number:
MFCD00001214
UNSPSC Code:
12171500
PubChem Substance ID:
24852550
NACRES:
NA.47

form

powder

Quality Level

200

composition

Dye content, 45%

solubility

water: 1%

λmax

600 nm

ε (extinction coefficient)

≥10000 at 254-260 nm in ethanol at 0.03 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].Nc1c(cc(Nc2ccccc2)c3C(=O)c4ccccc4C(=O)c13)S([O-])(=O)=O

InChI

1S/C20H14N2O5S.Na/c21-18-15(28(25,26)27)10-14(22-11-6-2-1-3-7-11)16-17(18)20(24)13-9-5-4-8-12(13)19(16)23;/h1-10,22H,21H2,(H,25,26,27);/q;+1/p-1

InChI key

LIKZXCROQGHXTI-UHFFFAOYSA-M

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBM3361
MKCF6958
MKBX5516V
MKBV1711V
MKBR2902V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Islam M Minisy et al.
Journal of colloid and interface science, 551, 184-194 (2019-05-12)
By using methyl orange template, polypyrrole nanotubes were obtained by the oxidative polymerization of pyrrole. The nanotubes were carbonized in inert atmosphere to nitrogen-enriched carbon nanotubes. These were subsequently coated with 20 wt% of polypyrrole prepared in the absence or the
Carolina Rosai Mendes et al.
Environmental science and pollution research international, 26(23), 24235-24246 (2019-06-24)
The quaternization of chitosan molecules creates materials with high adsorptive capacity towards textile dyes, which renders them capable of rapidly removing such dyes from a solution. In this study, a novel material was synthesized in bead form to adsorb the

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service