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U-49900 Sale

目录号 : GC45103

An Analytical Reference Material

U-49900 Chemical Structure

Cas No.:67579-76-4

规格 价格 库存 购买数量
1mg
¥1,113.00
现货
5mg
¥5,003.00
现货

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Sample solution is provided at 25 µL, 10mM.

产品文档

Quality Control & SDS

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产品描述

U-49900 is an analytical reference material categorized as an opioid. The primary metabolite of U-49900 is N-desethyl U-49900. This product is intended for research and forensic applications.

Chemical Properties

Cas No. 67579-76-4 SDF
Canonical SMILES ClC1=C(C=CC(C(N(C)[C@@H]2CCCC[C@H]2N(CC)CC)=O)=C1)Cl
分子式 C18H26Cl2N2O 分子量 357.3
溶解度 DMF: 20 mg/ml,DMF:PBS (pH 7.2)(1:3): 0.25 mg/ml,DMSO: 10 mg/ml,Ethanol: 10 mg/ml 储存条件 Store at -20°C
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储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。
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溶解性数据

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1 mg 5 mg 10 mg
1 mM 2.7988 mL 13.9938 mL 27.9877 mL
5 mM 0.5598 mL 2.7988 mL 5.5975 mL
10 mM 0.2799 mL 1.3994 mL 2.7988 mL
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Research Update

On the Horizon: The Synthetic Opioid U-49900

Cureus 2017 Sep 12;9(9):e1679.PMID:29152436DOI:10.7759/cureus.1679.

Synthetic opioid use continues to be a problem in the United States. New designer opioids continue to be released as "research chemicals" by vendors, leading to widespread use and potentially devastating consequences. U-49900 is a new synthetic opioid with limited clinical data available. Herein, we provide an overview of U-49900, the anecdotal accounts of U-49900 use that clinicians need to be made aware of, and a call for the federal government to take immediate action in curtailing the use of U-49900.

Metabolism of novel opioid agonists U-47700 and U-49900 using human liver microsomes with confirmation in authentic urine specimens from drug users

Drug Test Anal 2018 Jan;10(1):127-136.PMID:28608586DOI:10.1002/dta.2228.

Recently, the number of adverse events, including death, involving novel opioids has continued to increase, providing additional and sustained challenges for forensic and medical communities. Identification of emerging novel opioids can be challenging, compounded by detection windows and unknown metabolic profiles. In this study, human liver microsomes were used for the generation of in vitro metabolic profiles of U-47700 and U-49900. Generated metabolites were analyzed via a SCIEX TripleTOF® 5600+ quadrupole time-of-flight mass spectrometer and resulting data files were processing using MetabolitePilot™. Characterized metabolites were verified in vivo by analysis of authentic human urine specimens collected after analytically confirmed cases of overdose involving U-47700 or U-49900. In total, four metabolites were identified and present in urine specimens for U-47700, and five metabolites for U-49900. N-Desmethyl-U-47700 was determined to be the primary metabolite of U-47700. Parent U-47700 was identified in all urine specimens. N-Desmethyl-U-47700 and N,N-didesmethyl-U-47700 were structurally confirmed for the first time during this study following acquisition of standard reference material. N-Desethyl-U-49900 was determined to be the primary metabolite of U-49900 following microsomal incubations, while N,N-didesethyl-N-desmethyl-U-49900 was the most abundant in a urine specimen. Similarities in metabolic transformation were identified between U-47700 and U-49900, resulting in a common metabolite and isomeric species. These phenomena should be considered in cases involving U-47700 or U-49900. This study is the first to map the metabolic profiles of U-47700 and U-49900 using human liver microsomes, as well as the first to report any literature involving U-49900 and analysis of case specimens.

Investigation of the μ- and κ-opioid receptor activation by eight new synthetic opioids using the [35 S]-GTPγS assay: U-47700, isopropyl U-47700, U-49900, U-47931E, N-methyl U-47931E, U-51754, U-48520, and U-48800

Drug Test Anal 2022 Jul;14(7):1187-1199.PMID:35142070DOI:10.1002/dta.3238.

In 2009, new synthetic opioids appeared on the new psychoactive substances market. This class of new psychoactive substances generally poses a health risk due to the high affinity and potency of most of these compounds for the opioid receptors. It is known that overdoses can lead to respiratory depression and result in death. However, for many new synthetic opioids, data on toxicological and toxicokinetic properties are scarce. In the present study, eight U-opioids were investigated for their structure activity relationships at the μ- and κ-opioid receptors using a [35 S]-GTPγS assay. The potencies of the investigated U-opioids were lower than those of the reference compounds (μ-opioid receptor: hydromorphone, fentanyl; κ-opioid receptor: U-69593, U-50488). At the μ-opioid receptor, U-47700 showed the highest potency with an EC50 value of 111 nM, and at the κ-opioid receptor, U-51754 was found to be the most potent compound with an EC50 value of 120 nM. The following structural features were advantageous for activating the μ-opioid receptor: two chlorine substituents in 3,4-position at the aromatic ring, the absence of the methylene group between the amide group and the aromatic ring, a methyl group at the amide nitrogen, and/or a dimethylamine residue at the amine nitrogen of the cyclohexane ring. Further, the following structural features were beneficial for κ-opioid receptor activation: a methylene group between the amide group and the aromatic ring, a pyrrolidine residue at the amine nitrogen of the cyclohexane ring, a methyl group at the amide nitrogen, and/or a chlorine substitution at the 3,4-position of the aromatic ring.

Fatality Following Ingestion of Tetrahydrofuranylfentanyl, U-49900 and Methoxy-Phencyclidine

J Anal Toxicol 2018 Apr 1;42(3):e27-e32.PMID:29186585DOI:10.1093/jat/bkx092.

Novel psychoactive substances (NPS), and specifically novel opioids, continue to cause adverse events, including death, within drug-using populations. As the number of opioid-related overdoses continues to increase, laboratories have identified the emergence of new fentanyl analogues and other synthetic opioid-related drugs. Tetrahydrofuranylfentanyl (THFF) has been identified in Europe and the United States as an emerging novel opioid, causing death in at least 15 drug-using individuals to date. THFF is structurally similar to furanylfentanyl, a previously characterized novel opioid responsible for numerous adverse events, including death. In this case report, THFF, U-49900 and methoxy-phencyclidine were identified in postmortem blood and urine specimens collected after a suspected overdose. As part of the death investigation, an unknown substance was collected from the scene and analytically confirmed as THFF and U-49900. To further assist laboratories in identifying THFF ingestion, metabolic profiling was conducted using pooled human liver microsomes. Characterized metabolites were then confirmed in the specimens collected during this investigation. In total, seven metabolites were identified for THFF, most notably THF-norfentanyl and hydroxyl-THFF. THF-norfentanyl provides utility as a biomarker because it is a unique metabolite of THFF. 4-Anilino-N-phenethylpiperidine (4-ANPP) and its metabolite, hydroxyl-4-ANPP, were identified in microsomal incubations and collected specimens, but usefulness as biomarkers is limited due to commonality between other fentanyl analogues and co-ingestion as a synthesis precursor. To our knowledge, this case report is the first to document a fatality after ingestion of THFF and U-49900 in the United States.

Updating the list of known opioids through identification and characterization of the new opioid derivative 3,4-dichloro-N-(2-(diethylamino)cyclohexyl)-N-methylbenzamide (U-49900)

Sci Rep 2017 Jul 24;7(1):6338.PMID:28740128DOI:10.1038/s41598-017-06778-9.

New psychoactive substances have been rapidly growing in popularity in the drug market as non-illegal drugs. In the last few years, an increment has been reported on the use of synthetic alternatives to heroin, the synthetic opioids. Based on the information provided by the European Monitoring Centre for Drug and Drug Addiction, these synthetic opioids have been related to overdoses and deaths in Europe and North America. One of these opioids is the U-47700. A few months ago, U-47700 was scheduled in the U.S. and other countries, and other opioid derivatives have been appearing in order to replace it. One of these compounds is U-49900, an analog of U-47700. A white powder sample was obtained from an anonymous user in Spain. After an accurate characterization by gas chromatography-mass spectrometry, ultra-high performance liquid chromatography-high resolution mass spectrometry, nuclear magnetic resonance and single-crystal X-ray diffraction; and complemented by Fourier-transformed infrared spectroscopy, ultraviolet and circular dichroism spectrophotometry, the drug sample was unequivocally identified as U-49900. The information provided will be useful for the Early Warning System and forensic laboratories for future identifications of the U-49900, as well as in tentative identifications of other related opioids.