Carminic acid, 5 g

Carminic acid, 5 g

Synonyms C.I. 75470; Natural Red 4; 7-α-D-Glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl- 9,10-dioxo-2- anthracenecarboxylic acid

CAS Number: 1260-17-9 Molecular Formula: C22H20O13 Molecular Weight: 492.4

Beilstein Registry Number: 71651 EC Number: 215-023-3 MDL Number: MFCD00167028

Packaging size: 5 g

SKU 0215494205
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Description

Product Description

Carminic acid is aglucosidal coloring matter. The essential constituent of carmine. A pH indicator.

Application Notes

Typical Uses:
1. Free acid in color photography
2. Pigment for artists' paints
3. As bacteriology stain
4. Rarely now as acid-base indicator or as oxidimetric indicator
5. As a reagent for aluminum
6. As a complexing agent for cations.

Usage Statement

Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.

Key Applications

Bacteriology stain | Reagent for aluminum

Specifications
SKU 0215494205
Alternate Names C.I. 75470; Natural Red 4; 7-α-D-Glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl- 9,10-dioxo-2- anthracenecarboxylic acid
Application Notes Typical Uses:
1. Free acid in color photography
2. Pigment for artists' paints
3. As bacteriology stain
4. Rarely now as acid-base indicator or as oxidimetric indicator
5. As a reagent for aluminum
6. As a complexing agent for cations.
Base Catalog Number 15494205
Beilstein Registry Number 71651
CAS # 1260-17-9
EC Number 215-023-3
Molecular Formula C22H20O13
Molecular Weight 492.4
Optical Rotation [α]20/D +3.1°, c = 1 in H<sub>2</sub>O (Lit.)
Pack Size 5 g
Personal Protective Equipment Eyeshields, Gloves, respirator filter
pH Visual Transition Inverval: 4.8 (yellow to violet) to 6.2 (deep red)
Solubility Soluble in water (4 mg/mL), ethanol (2 mg/mL), methanol or in 1N NaOH (1:1).
Usage Statement Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.
UV Visible Absorbance λ max (water) 490 - 491 nm