Calystegine B1CAS# 127414-86-2 |
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 127414-86-2 | SDF | Download SDF |
| PubChem ID | 164245 | Appearance | Powder |
| Formula | C7H13NO4 | M.Wt | 175.18 |
| Type of Compound | Alkaloids | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | (1S,3R,4S,5R,7R)-8-azabicyclo[3.2.1]octane-3,4,5,7-tetrol | ||
| SMILES | C1C2C(CC(N2)(C(C1O)O)O)O | ||
| Standard InChIKey | BQFFLYRIKODYEN-CXNFULCWSA-N | ||
| Standard InChI | InChI=1S/C7H13NO4/c9-4-1-3-5(10)2-7(12,8-3)6(4)11/h3-6,8-12H,1-2H2/t3-,4+,5+,6-,7+/m0/s1 | ||
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it. |
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| About Packaging | 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment. |
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| Shipping Condition | Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request. | ||
| Description | 1. Calystegine B1 is a noncompetitive inhibitor of rice alpha-glucosidase, with a Ki value of 0.9 +/- 0.1 microM. 2. Calystegine B1 and Calystegine C1 are potent competitive inhibitors of the bovine, human, and rat beta-glucosidase activities, with Ki values of 150, 10, and 1.9 microM. |
Calystegine B1 Dilution Calculator
Calystegine B1 Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 5.7084 mL | 28.5421 mL | 57.0841 mL | 114.1683 mL | 142.7104 mL |
| 5 mM | 1.1417 mL | 5.7084 mL | 11.4168 mL | 22.8337 mL | 28.5421 mL |
| 10 mM | 0.5708 mL | 2.8542 mL | 5.7084 mL | 11.4168 mL | 14.271 mL |
| 50 mM | 0.1142 mL | 0.5708 mL | 1.1417 mL | 2.2834 mL | 2.8542 mL |
| 100 mM | 0.0571 mL | 0.2854 mL | 0.5708 mL | 1.1417 mL | 1.4271 mL |
| * Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations. | |||||
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Enzymatic synthesis of the glycosides of calystegines B1 and B2 and their glycosidase inhibitory activities.[Pubmed:9449768]
Carbohydr Res. 1997 Nov 10;304(2):173-8.
Several glycosides of calystegines B1 and B2 were synthesized by use of rice alpha-glucosidase and the whole cells of Rhodotorula lactosa, and their glycosidase inhibitory activities were investigated. Incubation of mixture of Calystegine B1 and maltose with rice alpha-glucosidase gave 3-O-alpha-D-glucopyranosylCalystegine B1 (2, 11.3%). An enzymatic beta-transglucosylation reaction of calystegines B1 or B2 with cellobiose using the whole cells of R. lactosa gave 3-O-beta-D-glucopyranosylCalystegine B1 (1) (0.9%) or 4-O-beta-D-glucopyranosylcalystegine B2 (3, 11.2%), respectively, while similar beta-transgalactosylation of calystegine B2 from lactose gave 4-O-beta-D-galactopyranosylcalystegine B2 (4, 10.1%). The glycosylation of calystegines B1 and B2 markedly decreased or abolished their inhibition against beta-glucosidase, alpha- or beta-galactosidase. Compound 4 however retained more or less the potency of calystegine B2 against trehalase. Interestingly, compound 1 was a noncompetitive inhibitor of rice alpha-glucosidase, with a Ki value of 0.9 +/- 0.1 microM.
The effects of calystegines isolated from edible fruits and vegetables on mammalian liver glycosidases.[Pubmed:9455909]
Glycobiology. 1997 Dec;7(8):1085-8.
The polyhydroxylated nortropane alkaloids called calystegines occur in many plants of the Convolvulaceae, Solanaceae, and Moraceae families. Certain of these alkaloids exhibit potent inhibitory activities against glycosidases and the recently demonstrated occurrence of calystegines in the leaves, skins, and sprouts of potatoes (Solanum tuberosum), and in the leaves of the eggplant (S. melongena), has raised concerns regarding the safety of these vegetables in the human diet. We have surveyed the occurrence of calystegines in edible fruits and vegetables of the families Convolvulaceae, Solanaceae, and Moraceae by GC-MS. Calystegines A3, B1, B2, and C1 were detected in all the edible fruits and vegetables tested; sweet and chili peppers, potatoes, eggplants, tomatoes, Physalis fruits, sweet potatoes, and mulberries. Calystegines B1 and C1 were potent competitive inhibitors of the bovine, human, and rat beta-glucosidase activities, with Ki values of 150, 10, and 1.9 microM, respectively for B1 and 15, 1.5, and 1 microM, respectively, for C1. Calystegine B2 was a strong competitive inhibitor of the alpha-galactosidase activity in all the livers. Human beta-xylosidase was inhibited by all four nortropanes, with calystegine C1 having a Ki of 0.13 microM. Calystegines A3 and B2 selectively inhibited the rat liver beta-glucosidase activity. The potent inhibition of mammalian beta-glucosidase and alpha-galactosidase activities in vitro raises the possibility of toxicity in humans consuming large amounts of plants that contain these compounds.
