Merck
CN
All Photos(2)

Documents

210684

Sigma-Aldrich

Acid Blue 25

Dye content 45 %

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

Related Categories

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

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