MilliporeSigma
All Photos(2)

Documents

212407

Sigma-Aldrich

Direct Blue 71

Dye content 50 %

Sign Into View Organizational & Contract Pricing

Empirical Formula (Hill Notation):
C40H23N7O13S4 · 4Na
CAS Number:
Molecular Weight:
1029.87
Colour Index Number:
34140
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

form

powder

Quality Level

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

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
D2535365548E2129
Direct Blue 71 Dye content 50 %

212407

Direct Blue 71

Direct Blue 15 suitable for Histopaque® system, suitable for viability studies of collagenase-treated rat liver cells

D2535

Direct Blue 15

Direct Red 80 Dye content 25 %

365548

Direct Red 80

Evans Blue Dye content ≥75 %

E2129

Evans Blue

form

powder

form

powder

form

powder

form

powder

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

ε (extinction coefficient)

-

ε (extinction coefficient)

≥12000 at 277-283 nm in H2O, ≥15000 at 223-235 nm in H2O, ≥32000 at 524-530 nm in H2O

ε (extinction coefficient)

-

composition

Dye content, 50%

composition

Dye content, ~40%

composition

Dye content, 25%

composition

Dye content, ≥75%

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

λmax

594 nm

λmax

-

λmax

528 nm

λmax

-

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.

Storage Class

11 - Combustible Solids

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?

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

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