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| | ALPHA-SOLANINE Basic information |
| | ALPHA-SOLANINE Chemical Properties |
| Melting point | 285℃ (dec.) | | Boiling point | 780.78°C (rough estimate) | | density | 1.40±0.1 g/cm3 (20 ºC 760 Torr) | | refractive index | 1.5280 (estimate) | | storage temp. | −20°C | | solubility | Methanol (Slightly, Heated), Pyridine (Slightly, Sonicated), Water (Slightly, Heated) | | form | Solid | | pka | 6.66(at 15℃) | | color | White to Off-White | | Water Solubility | 26.04mg/L(15 ºC) | | Merck | 13,8779 | | BRN | 77607 | | LogP | 5.670 (est) |
| | ALPHA-SOLANINE Usage And Synthesis |
| Description | This steroidal alkaloid is present in several Solanum species including S. nigrum,
S. Iycopersicum (tomato) and S. tuberosum (potato). The base crystallizes in
slender needles and shrinks markedly at 235°C. It has [α]20D - 59.45° (pyridine)
or - 42.16° (dilute HCl) and is readily soluble in hot EtOH, sparingly so in H20
and virtually insoluble in CHCl 3 or Et2 0. The salts are mostly amorphous
although a crystalline hydrochloride has been prepared with m.p. 212°C (dec.).
It is not affected by alkalies but mineral acids hydrolyze it to solanidine (q.v.)
and one mole each of dextrose, galactose and rhamnose.
Pharmacologically, the alkaloid is a protoplasmic poison and a powerful
haemolytic. Poisoning by potatoes sometimes occurs although the results are not
usually fatal. The symptoms are nausea, headache, emesis and gastritis. With
large doses parenchymatous nephritis and haemoglobinuria occurs with, at times,
paralysis of the central nervous system and cardiac arrest. The alkaloid also
possesses local irritant properties. | | Chemical Properties | White solid | | Uses | α-Solanine is produced as a by product in the synthesis of α-Chaconine. α-Chaconine is a glycoalkaloid displaying nerve toxin activity. Potential antifungal activity. | | Definition | ChEBI: A glycoalkaloid poison found in species of the nightshade family (Solanaceae), such as the potato (Solanum tuberosum). It is a trisccharide derivative of solanidine [(22beta)-solanid-5-en-3beta-ol]. | | General Description | This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG | | Hazard | A poison. | | Purification Methods | Recrystallise -solanine from EtOH, 85% aqueous EtOH, MeOH or aqueous MeOH as dihydrate m 276-278o. It solubility in H2O is 25mg/L and 5% in pyridine, but it is very soluble in Et2O and CHCl3. The hydrochloride is gummy or amorphous but has been crystallised (m ~212o dec). It has insecticidal properties. [Kuhn et al. Chem Ber 88 1492 1955, Beilstein 21 III/IV 1402.] | | References | Desfosses.,lahresb., 2, 114 (1820)
Firbas., Monatsh., 10, 541 (1889)
Cazeneuve, Breteau., Compt. rend., 128,887 (1899)
Davis., Pharm. I., 15, 160 (1902)
Wittman., Monatsh., 26,445 (1905)
Colombano., Gazzetta, 38, 19 (1908)
Zemplen, Gerecs., Ber., 61,2294 (1928)
Schopf, Herrmann., ibid, 66, 298 (1933)
Oddo, Caronna., ibid, 67,446 (1934) |
| | ALPHA-SOLANINE Preparation Products And Raw materials |
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