Larixyl acetateCAS# 4608-49-5 |
Quality Control & MSDS
3D structure
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Number of papers citing our products
| Cas No. | 4608-49-5 | SDF | Download SDF |
| PubChem ID | 11957828 | Appearance | White powder |
| Formula | C22H36O3 | M.Wt | 348.5 |
| Type of Compound | Isoprenoids | Storage | Desiccate at -20°C |
| Solubility | Soluble in ethanol and methan | ||
| Chemical Name | [(1S,4S,4aR,8aS)-4-[(3S)-3-hydroxy-3-methylpent-4-enyl]-4a,8,8-trimethyl-3-methylidene-2,4,5,6,7,8a-hexahydro-1H-naphthalen-1-yl] acetate | ||
| SMILES | CC(=O)OC1CC(=C)C(C2(C1C(CCC2)(C)C)C)CCC(C)(C=C)O | ||
| Standard InChIKey | WCNCDVQMEQJFGH-TZWCSUAMSA-N | ||
| Standard InChI | InChI=1S/C22H36O3/c1-8-21(6,24)13-10-17-15(2)14-18(25-16(3)23)19-20(4,5)11-9-12-22(17,19)7/h8,17-19,24H,1-2,9-14H2,3-7H3/t17-,18-,19-,21+,22+/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. | ||
Larixyl acetate Dilution Calculator
Larixyl acetate Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.8694 mL | 14.3472 mL | 28.6944 mL | 57.3888 mL | 71.736 mL |
| 5 mM | 0.5739 mL | 2.8694 mL | 5.7389 mL | 11.4778 mL | 14.3472 mL |
| 10 mM | 0.2869 mL | 1.4347 mL | 2.8694 mL | 5.7389 mL | 7.1736 mL |
| 50 mM | 0.0574 mL | 0.2869 mL | 0.5739 mL | 1.1478 mL | 1.4347 mL |
| 100 mM | 0.0287 mL | 0.1435 mL | 0.2869 mL | 0.5739 mL | 0.7174 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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Mass spectrometric methodology for the analysis of highly oxidized diterpenoid acids in Old Master paintings.[Pubmed:10797648]
J Mass Spectrom. 2000 Apr;35(4):512-533.
Diterpenoid resins from larch and pine trees and the corresponding fractions in a >100-year-old wax-resin adhesive and varnish and a 200-year-old resin/oil paint sample were analysed with by gas chromatography/mass spectrometry (GC/MS) using several off-line and on-line derivatization methods. The main resin compounds were highly oxidized abietic acids. Important products found are hydroxydehydroabietic acids (OH-DHAs), 7-oxoDHA, di-OH-DHAs and 15-OH-7-oxoDHA. The last two compounds have not been reported to occur in artworks before. Larixyl acetate, an important marker from larch resins, was found to be still present in high amounts in the adhesive. A large number of mass spectra of the different oxidation products and larixol and Larixyl acetate are presented and their fragmentation behaviour under electron impact conditions is discussed. An index for the degree of oxidation (IDOX) of the abietic acids is presented as an indicator of the degree of oxidation of the matrix in which the resin is present. The IDOX was 0.10, 0.67, 0.81 and 0.76 for the fresh resins, the dark-aged adhesive, the aged varnish and the resin/oil paint, respectively (measured with pyrolysis (Py)-tetramethylammonium hydroxide (TMAH)-GC/MS). Py-TMAH-GC/MS and direct temperature-resolved mass spectrometry are reliable, valuable and fast techniques for the assessment of the presence and degree of oxidation of diterpenoid resins. Copyright 2000 John Wiley & Sons, Ltd.
