COA Center



CARMINE For Microscopy

C.I.No.75470 -Nuclear stain. Suitable for use in Orth's Lithium Carminic technique
Alum lake of carminic acid, Cochineal, Nacarat, Natural Red 4


5 g (00005)

25 g (00025)

1GBA000015 1GBA000060
Article No. 02540 Grade For Microscopy
Purity CAS No. 1390-65-4
Molecular Formula Molecular Weight
H.S. Code 3203.0090 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Pink to red
Odour odorless Density [g/cm3] > 1.0
Solubility in water [% weight] Negligible


Appearance Dark red coloured powder Absorption maxima (λmax1, in DMSO) 563 - 571 nm
Absorption maxima (λmax2, in DMSO) 525 - 533 nm A1%,1cm, λ 1 max Min. 70
A1%,1cm, λ 2 max Min. 100 Ratio λmax. P+/-15 nm (at 528 nm) 1.00 - 1.10
Loss on drying (at 110°C) Max. 15%

Safety Information and Hazard Symbols

Safety Statement: 22-24/25
Revision Date: 02-May-2017

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