Product Details
Category
Cosmetic Color Additives
Molecular Formula
C22H20O13
Grade
certified by the Biological Stain Commission
Synonyms
Alum lake of carminic acid, Cochineal, Nacarat, Natural Red 4
Solubility
ammonium hydroxide: soluble1mg/mL
Application
Carmine has been used for the staining of mammary glands. It has also been used for the staining of chromosomes.
Melting Point
138–140℃ (darkens)
Product 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.
InChI Key
DGQLVPJVXFOQEV-UHFFFAOYSA-N
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)
Stability
Stable. Incompatible with strong oxidizing agents.
Safety Statements
22-24/25
Water Solubility
Negligible