Skip to Content
MilliporeSigma
All Photos(2)

Documents

212407

Sigma-Aldrich

Direct Blue 71

Dye content 50 %

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

About This Item

Empirical Formula (Hill Notation):
C40H23N7O13S4 · 4Na
CAS Number:
4399-55-7
Molecular Weight:
1029.87
Colour Index Number:
34140
EC Number:
224-531-4
MDL number:
MFCD00003971
UNSPSC Code:
12171500
PubChem Substance ID:
24852733
NACRES:
NA.47

form

powder

Quality Level

200

composition

Dye content, 50%

λmax

594 nm

ε (extinction coefficient)

≥15000 at 283-289 nm in water at 0.01 g/L
≥30000 at 582-588 nm in water at 0.01 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].[Na+].[Na+].Nc1ccc2c(O)c(N=Nc3ccc(N=Nc4ccc(N=Nc5cc(c6cccc(c6c5)S([O-])(=O)=O)S([O-])(=O)=O)c7ccccc47)c8ccc(cc38)S([O-])(=O)=O)c(cc2c1)S([O-])(=O)=O

InChI

1S/C40H27N7O13S4.4Na/c41-22-8-10-25-21(16-22)17-38(64(58,59)60)39(40(25)48)47-46-35-15-14-34(28-11-9-24(20-30(28)35)61(49,50)51)45-44-33-13-12-32(26-4-1-2-5-27(26)33)43-42-23-18-31-29(37(19-23)63(55,56)57)6-3-7-36(31)62(52,53)54;;;;/h1-20,48H,41H2,(H,49,50,51)(H,52,53,54)(H,55,56,57)(H,58,59,60);;;;/q;4*+1/p-4

InChI key

QTTDXDAWQMDLOF-UHFFFAOYSA-J

Related Categories

General description

Direct blue 71 is an azo dye with three azo bonds. It is useful to stain membrane-immobilized antibodies and proteins for the investigation of antigen-antibody interactions.

Application

Direct blue 71 has been used to stain sliced tissue sections mounted on the PVDF for in situ proteome analysis, and to stain the electroblotted membranes and sections of the brain to visualize the structure. Direct blue staining is also suitable for the assessment of protein binding and qualitative validation of protein concentration.

Other Notes

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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?

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

Visit the Document Library

Customers Also Viewed

Slide 1 of 6

1 of 6

DIRECT BLUE 6 (C.I. 22610) AldrichCPR

S468509

DIRECT BLUE 6 (C.I. 22610)

Tetrabromophenol Blue Dye content 75 %

Sigma-Aldrich

199311

Tetrabromophenol Blue

Cibacron Blue 3G-A Dye content ≥55 %

Sigma-Aldrich

B1064

Cibacron Blue 3G-A

Acid Blue 80 Dye content 40 %

Sigma-Aldrich

210323

Acid Blue 80

Acid Blue 129 Dye content 25 %

Sigma-Aldrich

306495

Acid Blue 129

Direct Red 80 Dye content 25 %

Sigma-Aldrich

365548

Direct Red 80

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