Carthamin
From Wikipedia, the free encyclopedia
| Carthamin[1] | |
|---|---|
 |
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| IUPAC name | (2Z,6S)-6-β-D-Glucopyranosyl -2-[ [(3S) -3-β-D-glucopyranosyl-2,3,4-trihydroxy -5-[(2E)-3-(4-hydroxyphenyl) -1-oxo-2-propenyl] -6-oxo-1,4-cyclohexadien-1-yl]methylene] -5,6-dihydroxy -4-[(2E)-3-(4-hydroxyphenyl) -1-oxo-2-propenyl] -4-cyclohexene-1,3-dione |
| Other names | Carthamin Carthamic acid C.I. Natural Red 26 Safflower red |
| Identifiers | |
| CAS number | [] |
| SMILES | O=C(/C=C/C3=C C=C(O)C=C3) C (C(/C1=C/C2=C(O) [C@]([C@@]6([H])[C@H](O) [C@@H](O)[C@H](O)[C@@H](CO)O6)(O) C (O)= C (C(/C=C/C5=CC=C(O)C=C5) =O)C2=O)=O)= C(O)[C@]([C@]4([H]) O [C@H](CO)[C@@H](O)[C@H] (O)[C@H]4O)(O)C1=O |
| Properties | |
| Molecular formula | C43H42O22 |
| Molar mass | 910.78 |
| Appearance | Red powder |
| Solubility in water | Slightly soluble |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Carthamin is a natural red pigment derived from safflower (Carthamus tinctorius). It is used as a dye and a food coloring. As a food additive it is known as Natural Red 26.
It was used extensively in the past for dyeing wool for the carpet industry in European countries.[2]
[edit] References
- ^ Merck Index, 11th Edition, 1876.
- ^ Carthamus tinctorius (Safflower), a commercially viable dye for textiles. Vankar, Padma S.; Tiwari, Vandana; Shanker, Rakhi; Shivani. Asian Dyer (2004), 1(4), 25-27.
| Major Families of Biochemicals | ||
| Peptides | Amino acids | Nucleic acids | Carbohydrates | Lipids | Terpenes | Carotenoids | Tetrapyrroles | Enzyme cofactors | Steroids | Flavonoids | Alkaloids | Polyketides | Glycosides | ||
| Analogues of nucleic acids: | Types of Glycosides | Analogues of nucleic acids: |
| Bond: | O-glycosidic bond | S-glycosidic bond | N-glycosidic bond | |
|---|---|---|
| Geometry: | α-Glycoside | β-Glycoside | 1,4-Glycoside | 1,6-Glycoside | |
| Glycone: | Glucoside | Fructoside | Glucuronide | |
| Aglycone: | Alcoholic glycoside | Anthraquinone glycoside | Coumarin glycoside | Cyanogenic glycoside | Flavonoid glycoside | Phenolic glycoside | Saponin | Cardiac glycoside | Steviol glycoside | Thioglycoside | Glycosylamine | Bufanolide | Cardenolide | |
