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Supplier: Spectrum Chemicals
Description: Ponceau 3R is a dye for wool, colorant in externally applied drugs and cosmetics, colorant in foods and biological stain.

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Supplier: Ambeed
Description: Acid Red 18 (Food Red No. 102) ≥85% (dye content)

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Catalog Number: (TCF0140-025G)
Supplier: TCI America
Description: CAS Number: 2611-82-7
MDL Number: MFCD00004084
Molecular Formula: C20H14N2O10S3
Molecular Weight: 604.46
Form: Powder
Color: Yellow Red

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Catalog Number: (TCN0309-025G)
Supplier: TCI America
Description: CAS Number: 2611-82-7
MDL Number: MFCD00004084
Molecular Formula: C20H14N2O10S3
Molecular Weight: 604.46
Purity/Analysis Method: >85.0% (E)
Form: Crystal
Lambda max.: 508 nm (0.02mol/L AcONH4 sol.)

Supplier: Thermo Scientific Chemicals
Description: Acid red 18, pure

Supplier: Spectrum Chemicals
Description: Cochineal Red A, also known as ponceau 4R, is typically synthesized from aromatic hydrocarbons and used as a synthetic food coloring. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.
Catalog Number: (97063-650)
Supplier: VWR
Description: Ponceau S, Proteomics Grade

Catalog Number: (97062-458)
Supplier: VWR
Description: A substitute for acid fuschin in Van Gieson stain. Also used for staining proteins after electrophoresis.

Catalog Number: (89138-848)
Supplier: Biotium
Description: Ponceau S staining solution is used for the detection of proteins on PVDF and nitrocellulose membranes with a limit of detection of about 250 ng of transferred protein.


Supplier: MP Biomedicals
Description: Ponceau S is used as protein stain for electrophoresis.

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Supplier: Advansta
Description: Protein stain for membranes.

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Supplier: G-Biosciences
Description: Ponceau S is a rapid and reversible stain for detecting protein bands on Western blot membranes and can be used with PVDF, nitrocellulose and cellulose acetate membranes*. Ponceau S is a negative stain, which binds to the positively charged amino groups of the protein and it also binds non‐covalently to non‐polar regions in the protein.

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Supplier: MP Biomedicals
Description: Crystal Ponceau 6R is a biological protein stain, only slightly staining cellulose used in microscopy.

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Catalog Number: (TCP0590-025G)
Supplier: TCI America
Description: CAS Number: 3761-53-3
MDL Number: MFCD00003897
Molecular Formula: C18H16N2O7S2
Molecular Weight: 480.42
Form: Crystal
Color: Red

Supplier: Spectrum Chemicals
Description: Ponceau 2R, also known as xylidine ponceau or Red R, is used in histology for staining.

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Supplier: TCI America
Description: [for Biochemical Research]
CAS Number: 6226-79-5
MDL Number: MFCD00003892
Molecular Formula: C22H16N4O13S4
Molecular Weight: 760.55
Purity/Analysis Method: >85.0% (N)
Form: Crystal

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
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The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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