C6152

Carmine

certified by the Biological Stain Commission

• 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
• UNSPSC Code: 12171500
• NACRES: NA.47

Properties

• grade: certified by the Biological Stain Commission
• Quality Level: 200
• form: powder
• composition: Dye content: minimum has not been established
• color: red
• solubility: 1 mg/mL, red (2 N NH₄OH)
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• 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 commonly used with aluminum, iron or other metal salts to enhance its activity. During smear preparation, carmine is required for chromatin staining in fresh material. In presence of aluminum chloride, it is required for the staining of glycogen.

Application

Carmine has been used for the staining of mammary glands. It has also been used for the staining of chromosomes.

Suitability

Certified for use in Orth′s lithium carbonate technique, Southgate′s mucicarmine method, and Best′s carmine for glycogen

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves