C1022

Carmine

≥42.0% purity, powder

• Synonym(s): Alum lake of carminic acid, Cochineal, Nacarat, Natural Red 4
• CAS Number: 1390-65-4
• Colour Index Number: 75470
• EC Number: 215-724-4
• MDL number: MFCD32869252
• UNSPSC Code: 12171500
• NACRES: NA.47

Properties

• Product Name: Carmine, powder, ≥42.0% (UV-vis)
• assay: ≥42.0% (UV-vis)
• form: powder
• color: red
• solubility: ammonium hydroxide: 1 mg/mL
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: O1C(C(C(C(C1c2c(c3c(c(c2O)O)C(=O)c4c(c(c(c(c4)O)C(=O)O)C)C3=O)O)O)O)O)CO
• InChI: 1S/C22H20O13/c1-4-8-5(2-6(24)9(4)22(33)34)13(25)10-11(15(8)27)16(28)12(18(30)17(10)29)21-20(32)19(31)14(26)7(3-23)35-21/h2,7,14,19-21,23-24,26,28-32H,3H2,1H3,(H,33,34)
• InChI key: DGQLVPJVXFOQEV-UHFFFAOYSA-N

Description

General description

Carmine is a red compound and is generally used with aluminum, iron and other metal salts to enhance its activity.[1] During smear preparation, it is required for chromatin staining in fresh material. In presence of aluminum chloride, it is used for the staining of glycogen.[2]

Application

Carmine has been used for the staining of mammary glands.[3][4] It has been used for the staining of the chromosomes.[5]

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)