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| Product Name: | Carminic Acid | | Synonyms: | Carminic Acid ;3,5,6,8-Tetrahydroxy-1-methyl-9,10-dioxo-7-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-9,10-dihydroanthracene-2-carboxylic acid;Carminic acid (C.I. 75470) GR for analysis and for microscopy;ALUMINUM LAKE OF CARMINIC ACID;2-anthracenecarboxylicacid,7-beta-d-glucopyranosyl-9,10-dihydro-3,5,6,8-tetra;7-.beta.-D-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-2-Anthracenecarboxylicacid;7-alpha-d-glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo;C.I.Naturalred4 | | CAS: | 1260-17-9 | | MF: | C22H20O13 | | MW: | 492.39 | | EINECS: | 215-023-3 | | Mol File: | 1260-17-9.mol |  |
Use
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.]
- Carminic Acid
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- US $10.00 / KG
- 2025-03-28
- CAS:1260-17-9
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 10 mt
- Carminic Acid
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- US $50.00 / KG
- 2025-03-21
- CAS:1260-17-9
- Min. Order: 25KG
- Purity: 98
- Supply Ability: 200ton
- Carminic acid
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- US $72.00-39.00 / mg
- 2024-11-19
- CAS:1260-17-9
- Min. Order:
- Purity: 99.94%
- Supply Ability: 10g
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1260-17-9
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