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2-Anthracenecarboxylicacid, 7-b-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo- (1260-17-9)

Identification
Name:2-Anthracenecarboxylicacid, 7-b-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-
Synonyms:2-Anthroicacid, 7-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-(7CI);Carminic acid (6CI,8CI);C.I. 75470;C.I. Natural Red 4;Carmine 5297;Cochineal Red PWD;E 120;E 120 (dye);NSC 326224;Natural Red 4;San Red 1;San-Ei Gen San Red 1;Sun Red 1;Sun Red No. 1;
CAS:1260-17-9
EINECS: 215-023-3
Molecular Formula: C22H20O13
Molecular Weight: 492.387
InChI: InChI=1/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)/t7-,14-,19+,20-,21-/m1/s1
Molecular Structure: (C22H20O13) 2-Anthroicacid, 7-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-(7CI);Carmi...
Properties
Melting Point: 136ºC
Density:1.869 g/cm3
Refractive index:1.792
Solubility:SOL IN WATER, ALCOHOL, CONCENTRATED SULFURIC ACID; SLIGHTLY SOL IN ETHER; PRACTICALLY INSOL IN PETROLEUM ETHER, BENZENE, CHLOROFORM
Appearance:dark red crystalline powder
Color: RED MONOCLINIC PRISMS FROM AQ METHANOL
DARK, PURPLISH-BROWN MASS OR BRIGHT-RED POWDER
DEEP RED COLOR IN WATER; YELLOW TO VIOLET IN ACID SOLN
Safety Data
 

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