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Carminic Acid

CAS No.1260-17-9
Chemical Name:Carminic Acid
CBNumber:CB1428489
Molecular Formula:C22H20O13
Formula Weight:492.39
MOL File:1260-17-9.mol

Carminic Acid Property

Melting point 136 °C
Boiling point 506.2°C (rough estimate)
alpha 15654 +51.6° (water)
Density 1.4504 (rough estimate)
bulk density 490kg/m3
refractive index 1.6000 (estimate)
Flash point 12℃
storage temp. room temp
solubility 30g/l
Colour Index 75470
pka 1.62±0.20(Predicted)
form Crystalline Powder
color Red to dark red
PH 1.6 (10g/l, H2O, 20℃)
Odor Odorless
PH Range 4.8 - 6.2
optical activity [α]20/D +3.1°, c = 1 in H2O
Water Solubility 1.298g/L(room temperature)
λmax 495 nm
ε(extinction coefficient) ≥13000 at 222-228 nm in ethanol at 0.03g/L
≥18000 at 275-281nm in ethanol at 0.03g/L
Merck 14,1843
BRN 71651
LogP 1.532 (est)
Substances Added to Food (formerly EAFUS) COCHINEAL EXTRACT (COCCUS CACTI L.)
CAS DataBase Reference 1260-17-9
FDA UNII CID8Z8N95N
EPA Substance Registry System C.I. Natural Red 4 (1260-17-9)
UNSPSC Code 85151701
NACRES NA.47

Safety

Safety Statements :22-24/25
WGK Germany :2
HS Code :32129000
Hazardous Substances Data :1260-17-9(Hazardous Substances Data)

NFPA 704:

	0
3		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H314
Precautionary statements P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501

Carminic Acid Price More Price(7)

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Product number: 229253
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Brand: TCI Chemicals (India)
Product number: C0782
Product name : Carminic Acid (Natural dye)
Purity:
Packaging: 5G
Price: ₹11000
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Brand: TCI Chemicals (India)
Product number: C0782
Product name : Carminic Acid (Natural dye)
Purity:
Packaging: 25G
Price: ₹16300
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Carminic Acid Chemical Properties,Usage,Production

Chemical Properties red to dark red crystalline powder
Chemical Properties Cochineal extract is a concentrated solution obtained after removing alcohol from an aqueous–alcoholic extract of cochineal (Dactylopius coccus Costa, also called Coccus cati L.). This extract is used as a color additive, the primary colorant being carminic acid.
History CI Natural Red 4(CI 75470), is a red dye occurring as a glycoside in the body of the cochineal insect Dactylopius coccus of the order Homoptera, family Coccidae. This insect is native to Central and South America. The Aztecs had extracted the dye from the insect centuries before the coming of the Spaniards. For breeding purposes, the insects were collected in the autumn and carefully protected during the winter months. Cochineal was harvested after three months, and then the bugs were killed by immersion in hot water, by placing in hot ovens, or by exposure to the hot sun. The latter method produced the highest quality dye. At present, Peru and the Canary Islands are the main source of the dye. Until the advent of synthetic dyes, the principal use for carminic acid was for dyeing tin-mordanted wool or silk. Its aluminum lake, carmine, finds use in the coloring of foods.
Uses Carminic acid (C.I. 75470) For staining nuclei in histological sections. Used to prepare staining solutions.
CAS 1260-17-9, pH 1.6 (10?g/l, H?O, 20?°C).
Uses antineoplastic, glucosyltransferase inhibitor
Uses A red glucosidal hydroxyanthrapurin, it is produced naturally within some insects as a defense mechanism.
Definition ChEBI: A tetrahydroxyanthraquinone that is that is 1,3,4,6-tetrahydroxy-9,10-anthraquinone substituted by a methyl group at position 8, a carboxy group at position 7 and a 1,5-anhydro-D-glucitol moiety at position 2 via a C-gly osidic linkage. It is a natural dye isolated from several insects such as Dactylopius coccus.
General Description Dark purplish-brown mass or bright red or dark red powder. Darkens at 248°F. Deep red color in water. Yellow to violet in acidic aqueous solutions.
Air & Water Reactions Soluble in water [Hawley].
Reactivity Profile CARMINE neutralizes bases in exothermic reactions. Incompatible with strong oxidizing agents.
Fire Hazard Flash point data for CARMINE are not available. CARMINE is probably combustible.
Purification Methods Carminic acid forms red prisms from EtOH. It gives a red colour in Ac2O and yellow to violet in acidic solution. UV: max (H2O) 500nm ( 6,800); (0.02N HCl) 490-500nm ( 5,800) and (0.0001N NaOH) 540nm ( 3,450). IR: max (Nujol) 1708s, 1693s, 1677m, 1648m, 1632m, 1606s, 1566s, 1509 cm-1. Periodate oxidation is complete after 4hours at 0o with the consumption of 6.2 mols. The tetra-O-methyl carminate has m 186-188o (yellow needles from *C6H6/pet ether). [IR: Ali & Haynes J Chem Soc 1033 1959, Bhatia & Venkataraman Indian J Chem 3 (2) 92 1965, Synthesis: Davis & Smith Biochemical Preparations 4 38 1955, Beilstein 18 III/1V 6697.]