7-Acetoxy-4-methylcoumarinCAS# 2747-05-9 |
Quality Control & MSDS
3D structure
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Number of papers citing our products
| Cas No. | 2747-05-9 | SDF | Download SDF |
| PubChem ID | 366 | Appearance | Powder |
| Formula | C12H10O4 | M.Wt | 218 |
| Type of Compound | N/A | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | (4-methyl-2-oxochromen-7-yl) acetate | ||
| SMILES | CC1=CC(=O)OC2=C1C=CC(=C2)OC(=O)C | ||
| Standard InChIKey | HXVZGASCDAGAPS-UHFFFAOYSA-N | ||
| Standard InChI | InChI=1S/C12H10O4/c1-7-5-12(14)16-11-6-9(15-8(2)13)3-4-10(7)11/h3-6H,1-2H3 | ||
| 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. | ||
7-Acetoxy-4-methylcoumarin Dilution Calculator
7-Acetoxy-4-methylcoumarin Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 4.5872 mL | 22.9358 mL | 45.8716 mL | 91.7431 mL | 114.6789 mL |
| 5 mM | 0.9174 mL | 4.5872 mL | 9.1743 mL | 18.3486 mL | 22.9358 mL |
| 10 mM | 0.4587 mL | 2.2936 mL | 4.5872 mL | 9.1743 mL | 11.4679 mL |
| 50 mM | 0.0917 mL | 0.4587 mL | 0.9174 mL | 1.8349 mL | 2.2936 mL |
| 100 mM | 0.0459 mL | 0.2294 mL | 0.4587 mL | 0.9174 mL | 1.1468 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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Downregulation of Rubisco Activity by Non-enzymatic Acetylation of RbcL.[Pubmed:27109602]
Mol Plant. 2016 Jul 6;9(7):1018-27.
Atmospheric carbon dioxide (CO2) is assimilated by the most abundant but sluggish enzyme, ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). Here we show that acetylation of lysine residues of the Rubisco large subunit (RbcL), including Lys201 and Lys334 in the active sites, may be an important mechanism in the regulation of Rubisco activities. It is well known that Lys201 reacts with CO2 for carbamylation, a prerequisite for both carboxylase and oxygenase activities of Rubisco, and Lys334 contacts with ribulose-1,5-bisphosphate (RuBP). The acetylation level of RbcL in plants is lower during the day and higher at night, inversely correlating with the Rubisco carboxylation activity. A search of the chloroplast proteome database did not reveal a canonical acetyltransferase; instead, we found that a plant-derived metabolite, 7-Acetoxy-4-methylcoumarin (AMC), can non-enzymatically acetylate both native Rubisco and synthesized RbcL peptides spanning Lys334 or Lys201. Furthermore, lysine residues were modified by synthesized 4-methylumbelliferone esters with different electro- and stereo-substitutes, resulting in varied Rubisco activities. 1-Chloroethyl 4-methylcoumarin-7-yl carbonate (ClMC) could transfer the chloroethyl carbamate group to lysine residues of RbcL and completely inactivate Rubisco, whereas bis(4-methylcoumarin-7-yl) carbonate (BMC) improved Rubisco activity through increasing the level of Lys201 carbamylation. Our findings indicate that RbcL acetylation negatively regulates Rubisco activity, and metabolic derivatives can be designed to dissect and improve CO2 fixation efficiency of plants through lysine modification.
