Sigma Aldrich

Sigma-Aldrich is a leading Life Science and High Technology company whose biochemical, organic chemical products, kits and services are used in scientific research.

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1 – 15of73results
1

Sigma Diagnostics™ Phosphomolybdic Acid Solution

For use in Masson Trichrome procedure

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2

Congo Red, Certified, Sigma-Aldrich™

CAS: 573-58-0 Molecular Formula: C32H22N6Na2O6S2 Molecular Weight (g/mol): 696.664 InChI Key: IQFVPQOLBLOTPF-UHFFFAOYSA-L Synonym: Cosmos Red PubChem CID: 11313 ChEBI: CHEBI:34653 IUPAC Name: disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate SMILES: C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]

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PubChem CID11313
CAS573-58-0
Molecular Weight (g/mol)696.664
ChEBICHEBI:34653
SMILESC1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]
SynonymCosmos Red
IUPAC Namedisodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate
InChI KeyIQFVPQOLBLOTPF-UHFFFAOYSA-L
Molecular FormulaC32H22N6Na2O6S2
3

Sigma Diagnostics™ Phosphotungstic Acid Solution

Intended for use in the Sigma Masson Trichrome Procedure, HT15

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4

Sigma Diagnostics™ Bouin's Solution

Fixative for preserving soft and delicate structures

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FormatSolution
Product TypeBouin’s solution
ColorYellow
SynonymBouin’s fluid
For Use With (Application)Used as a mordant in various trichrome procedures
5

Sigma Diagnostics™ Silver Stain (Modified GMS) Kit

Intended for use in the histologic demonstration of fungi, basement membrane and some opportunistic organisms such as Pneumocystis carinii in tissue sections or smears

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6

Sigma Diagnostics™ Eosin Y Solution, Alcoholic with Phloxine

General-purpose cytoplasmic counterstain

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TypeAlcoholic Eosin Y Solution
FormatSolution
Product TypeEosin Y solution, alcoholic, with phloxine
ColorBright pink to pinkish-orange
Storage Requirements18–26°C
For Use With (Application)Used with hematoxylin and eosin staining
7

Sigma Diagnostics™ Malachite Green Solution

Acts as both a counterstain and a differentiator

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TypeMalachite Green Solution
FormatSolution
Product TypeMalachite Green solution
ColorDark Green
Shelf LifeExpiry date on the label
For Use With (Application)For use with Carbol Fuchsin (HT80-1) in Sigma Acid Fast Stain, Procedure HT80
8

Sigma Diagnostics™ Eosin Y Solution, aqueous

General purpose cytoplasmic counterstain

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TypeAqueous Eosin Y Solution
FormatSolution
Product TypeEosin Y solution, aqueous
Storage Requirements18–26°C
For Use With (Application)Used with hematoxylin and eosin staining
9

Sigma Diagnostics™ Reticulocyte Stain

Used for the identification of reticulocytes in blood films

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10

Sigma Diagnostics™ Histopaque™-1083 Solution

Facilitates recovery of viable mononuclear cells from rats, mice, and other small mammals. Sigma-Aldrich™ Histopaque™-1083 is for R&D use only, not for drug, household, or other uses.

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Content And Storage2° to 8°C
FormLiquid
Product TypeCentrifugation Media
ColorColorless
Endotoxin Level≤3 EU/mL
pH8.8 to 9.0
Shelf LifeExpiry date on the label
For Use With (Application)Recovery of viable mononuclear cells from rats, mice, and other small mammals.
SterilitySterile
Density1.083 g/mL
11

Sigma Diagnostics™ Reticulum Stain Kit

Intended to demonstrate reticular fibers in tissue sections

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12

Sigma Diagnostics™ Gold chloride solution

Used for the toning of sections stained with the Silver Methanamine procedure

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13

Sigma Diagnostics™ Eosin Y Solution, alcoholic

General-purpose cytoplasmic counterstain

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FormatSolution
Product TypeEosin Y solution, alcoholic
ColorBright Pink to Pinkish-Orange
Shelf LifeExpiry date on the label
For Use With (Application)Used with hematoxylin and eosin staining
14

Sigma Diagnostics™ Phosphate buffer pH 7.2 at 25°C

For use as a buffer in various Romanowsky type staining procedures

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15

Sigma Diagnostics™ Sigmacote™

Reacts with surface silanol groups on glass to produce a neutral, hydrophobic, microscopically thin film

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TypeSiliconizing Reagent for Glass and Other Surfaces
Content And Storage2°C to 8°C
FormatSolution
ColorColorless
Intended UseUsed to treat GC injection glass inserts.