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Chemical Structure| 5746-86-1 Chemical Structure| 5746-86-1

Structure of (±)-Nornicotine
CAS No.: 5746-86-1

Chemical Structure| 5746-86-1

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Synonyms: DL-Nornicotine; (R,S)-Nornicotine; Nornicotine

4.5 *For Research Use Only! Not for Human Use. We Do Not Sell to Patients.

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Product Citations

Product Citations

Guo, Xinyang ; Thomas, Bryce ; Chau, KN Minh ; Zhang, Di ; Shen, Qiming ; Talebian, Shakiba , et al.

Abstract: Quantification of total N-nitrosamines (TONO) is critical for assessing environmental carcinogens. UV-chemiluminescence (UV-CL) shows promise for TONO analysis; however, the data accuracy is limited by matrix interference and the analyte-specific method sensitivity. To overcome these challenges, we designed a new online UV-CL analyzer integrating anion exchange cartridges (AEC) and a homemade nebulizer. The AEC eliminates interference from a wide concentration range of NO2. The nebulizer effectively introduces both volatile and less-volatile nitrosamines, achieving 98.4% photolysis while requiring only 14–53% of the UV dosage used in previous studies. Our analyzer achieved a universal calibration across structurally diverse N-nitrosamines, simplifying quantitative N-nitrosamine measurements. We further demonstrated its application by measuring TONO in authentic tobacco products. Compared to liquid chromatography mass spectrometry (LC-MS), the analyzer obtained consistent kinetic results when monitoring the reaction between NO2 and nornicotine, supporting its application in kinetic studies. Moreover, our preliminary analysis of flavored e-juices shows that they could contain up to 0.24 μmol/g of TONO, which could increase further when an environmental level of NO2 (6.7 mg/L) is present. Comparing results obtained using the analyzer and LC-MS, known tobacco-specific nitrosamines (TSNAs) account for less than 5.5% of TONO, indicating that most N-nitrosamines in tobacco are unknown. This led to the tentative identification of two new N-nitrosamines: pyridine-methylated N-nitrosoanatabine and pyridine-methylated N-nitrosoanabasine using high-resolution HPLC-MS/MS. Our results supported the feasibility of using the UV-CL analyzer for rapid TONO measurements and highlighted the need to monitor N-nitrosamine contamination in e-juice and tobacco products.

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Product Details of (±)-Nornicotine

CAS No. :5746-86-1
Formula : C9H12N2
M.W : 148.21
SMILES Code : C2=C(C1CCCN1)C=NC=C2
Synonyms :
DL-Nornicotine; (R,S)-Nornicotine; Nornicotine
English Name :3-(Pyrrolidin-2-yl)pyridine
MDL No. :MFCD00016913
InChI Key :MYKUKUCHPMASKF-UHFFFAOYSA-N
Pubchem ID :412

Safety of (±)-Nornicotine

Isoform Comparison

Protocol

Bio Calculators
Preparing Stock Solutions 1mg 5mg 10mg

1 mM

5 mM

10 mM

6.75mL

1.35mL

0.67mL

33.74mL

6.75mL

3.37mL

67.47mL

13.49mL

6.75mL

Dissolving Methods
Please choose the appropriate dissolution scheme according to your animal administration guide.For the following dissolution schemes, clear stock solution should be prepared according to in vitro experiments, and then cosolvent should be added in turn:

in order to ensure the reliability of the experimental results, the clarified stock solution can be properly preserved according to the storage conditions; The working fluid for in vivo experiment is recommended to be prepared now and used on the same day;

The percentage shown in front of the following solvent refers to the volume ratio of the solvent in the final solution; If precipitation or precipitation occurs in the preparation process, it can be assisted by heating and/or ultrasound.
Protocol 1
Protocol 2
 

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