MethyltestosteroneCAS# 58-18-4 |
Quality Control & MSDS
3D structure
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Number of papers citing our products
| Cas No. | 58-18-4 | SDF | Download SDF |
| PubChem ID | 6010 | Appearance | Powder |
| Formula | C20H30O2 | M.Wt | 302.5 |
| Type of Compound | N/A | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | (8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13,17-trimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one | ||
| SMILES | CC12CCC(=O)C=C1CCC3C2CCC4(C3CCC4(C)O)C | ||
| Standard InChIKey | GCKMFJBGXUYNAG-HLXURNFRSA-N | ||
| Standard InChI | InChI=1S/C20H30O2/c1-18-9-6-14(21)12-13(18)4-5-15-16(18)7-10-19(2)17(15)8-11-20(19,3)22/h12,15-17,22H,4-11H2,1-3H3/t15-,16+,17+,18+,19+,20+/m1/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. | ||
Methyltestosterone Dilution Calculator
Methyltestosterone Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 3.3058 mL | 16.5289 mL | 33.0579 mL | 66.1157 mL | 82.6446 mL |
| 5 mM | 0.6612 mL | 3.3058 mL | 6.6116 mL | 13.2231 mL | 16.5289 mL |
| 10 mM | 0.3306 mL | 1.6529 mL | 3.3058 mL | 6.6116 mL | 8.2645 mL |
| 50 mM | 0.0661 mL | 0.3306 mL | 0.6612 mL | 1.3223 mL | 1.6529 mL |
| 100 mM | 0.0331 mL | 0.1653 mL | 0.3306 mL | 0.6612 mL | 0.8264 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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Development of an extraction method for anabolic androgenic steroids in dietary supplements and analysis by gas chromatography-mass spectrometry: Application for doping-control.[Pubmed:30118779]
Steroids. 2018 Oct;138:134-160.
Several studies have highlighted that nutritional supplements may contain undeclared anabolic steroids that are banned by the International Olympic Committee/World Anti-Doping Agency. Any kind of abuse with these drugs is extremely dangerous because of their side effects. Thus, the control of food additives in order to protect the best consumer health and to limit fraudulent practices in the field of sports is essential. This paper describes a simple and effective qualitative gas chromatography-mass spectrometry (GC-MS) method to detect anabolic androgenic steroids (AAS): androsterone, nandrolene, dehydroepiandrosterone, 5a-androstane-3beta, 17beta-diol, dihydrotestosterone, testosterone, methenolone acetate, methandienone, boldenone and fluoxymesterone, in food supplements. Methyltestosterone was used as internal standard. Target compounds were extracted with a mixture of N-pentane and di-ethylether (7.5:2.5, v/v). A good extraction recovery was obtained by our method for all the AAS (R>88%). Crude extract was derivatized with N-methyl-N-trimethylsilyl-trifluoracetamide. Separation was performed on a GC connected to quadrupole MS detector using a 5% phenylmethylsiloxane fused silica capillary column (30mx0.25mm i.d.; film thickness, 0.25microm). Helium was used as carrier gas with a flow rate of 0.3microlmin(-1) (measured at 6.1 psi 190 degrees C). The MS was operated in electron ionization mode (70eV) and in selected ion monitoring (SIM). The mass spectra of the standard compounds were acquired in full SCAN mode (50-700m/z) by infusion of a reference solution at 50microg/ml. Three higher diagnostic ions were monitored for each compound of interest. All AAS get separated with good peak shapes and resolution factor. The total analysis time by our optimised method was only 20min. The developed method was validated according to Laboratories International Standard regulations for specificity, precision in both liquid and solid matrixes, and memory effect. The Tolerance Interval was judged true. The limit of detection was about 10ng/g for solid samples and 10ng/ml for liquid samples. The developed method was then applied to the research of steroids in nine Tunisian commercially dietary supplements using for each compound of interest SIM mode for screening then SCAN mode for confirmation. One of the monitoring samples was positive to methandienone not declared on the label. Our analytical method can be beneficial for AAS screening in dietary supplements.
