C3143

Chromotrope 2R

Powder

• Synonym(s): 2-(Phenylazo)chromotropic acid disodium salt, Acid Red 29
• Empirical Formula (Hill Notation): C₁₆H₁₀N₂Na₂O₈S₂
• CAS Number: 4197-07-3
• Molecular Weight: 468.37
• Colour Index Number: 16570
• EC Number: 224-085-0
• MDL number: MFCD00003955
• UNSPSC Code: 12171500
• PubChem Substance ID: 24892586
• NACRES: NA.47

Properties

• product name: Chromotrope 2R, suitable for modified Gomori Trichrome stain
• form: powder
• composition: Dye content, ≥70%
• color: red to brown
• solubility: H₂O: 1 mg/mL, dark red
• εmax: ≥450 at 510-513 nm in methanol
• suitability: suitable for modified Gomori Trichrome stain
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].[Na+].Oc1cc(cc2cc(c(\N=N\c3ccccc3)c(O)c12)S([O-])(=O)=O)S([O-])(=O)=O
• InChI: 1S/C16H12N2O8S2.2Na/c19-12-8-11(27(21,22)23)6-9-7-13(28(24,25)26)15(16(20)14(9)12)18-17-10-4-2-1-3-5-10;;/h1-8,19-20H,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2/b18-17+;;
• InChI key: GXEAXHYQKZAJGB-QIKYXUGXSA-L

Description

Application

Chromotrope 2R has been used in the Gomori trichrome staining in osteochondral tissues. It has also been used for the staining of eosinophils in lung sections.

Biochem/physiol Actions

Chromotrope 2R is used for the staining of microsporidia in body fluids and stool samples. It is used in modified Gomori′s trichrome staining. Chromotrope 2R has high affinity for phospholipids and is used for the staining of mitochondrial and endoplasmic reticulum membrane in histological samples.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves