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
• UNSPSC Code: 12171500
• NACRES: NA.47

Properties

• product name: Carmine, powder, ≥42.0% (UV-vis)
• Quality Level: 200
• 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
• 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. 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.

Application

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

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