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(S)-3-Amino-2-oxo-azepane hydrochloride

(S)-3-Amino-2-oxo-azepane (hydrochloride) is a biochemical reagent that can be used as a biomaterial or organic compound related to life science research.
(S)-3-Amino-2-oxo-azepane hydrochloride
(S)-3-Amino-2-oxo-azepane hydrochloride Chemical Structure CAS No.: 26081-07-2
Product category: Others 15
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
(S)-3-Amino-2-oxo-azepane (hydrochloride) is a biochemical reagent that can be used as a biomaterial or organic compound related to life science research.
(S)-3-Amino-2-oxo-azepane hydrochloride (also known as L-Lysine lactam HCl, CAS 26081-07-2) is a cyclic lactam derivative with the molecular formula C₆H12N2O·HCl and a molecular weight of 164.63 g/mol. It is a chiral building block based on the lysine scaffold, where the side-chain amino group has cyclized with the terminal carboxylic acid to form a seven-membered ring (caprolactam). It is a biochemical reagent and a research chemical used in organic synthesis.
Biological Activity I Assay Protocols (From Reference)
Targets
(S)-3-Amino-2-oxo-azepane does not have a biological target; it is a chemical intermediate. It is a synthetic building block used to introduce the L-lysine cyclic lactam structure into more complex molecules, particularly peptidomimetics. The (S) configuration refers to the absolute stereochemistry at the 3-position (the original alpha-carbon of lysine), which is critical for biological activity in the final product.
ln Vitro
In vitro, (S)-3-Amino-2-oxo-azepane hydrochloride is not biologically active. It is used as a building block for the synthesis of pharmaceutical compounds and as a standard in analytical chemistry. It is used to synthesize novel heterocyclic structures, including bicyclic lactams and peptide analogs. Its purity is ≥98% by HPLC, and it is a white to off-white solid powder.
ln Vivo
(S)-3-Amino-2-oxo-azepane hydrochloride is not used in in vivo animal studies as a drug candidate on its own. It is a research chemical and synthetic intermediate. Any biological activity observed in vivo would be from the final molecule synthesized from it. The parent compound is not administered to animals for efficacy or toxicity studies.
Enzyme Assay
No direct receptor binding protocol is applicable for (S)-3-Amino-2-oxo-azepane hydrochloride. To verify its chirality, an analytical HPLC method using a chiral stationary phase (e.g., Chiralpak AD-H) is employed. The compound is dissolved in hexane/isopropanol (90:10) with 0.1% diethylamine. The enantiomeric purity (>98% ee) is determined by comparing the peak areas of the two enantiomers. This ensures the desired (S) configuration is retained.
Cell Assay
(S)-3-Amino-2-oxo-azepane hydrochloride is not used directly in cell-based assays. However, a peptidomimetic synthesized from it could be tested in cellular assays. For example, cells are treated with the peptidomimetic (1-50 uM) for 24-72 hours. Cell viability is assessed by MTT assay. If the peptidomimetic is an inhibitor of a specific protein, its activity can be measured by a Western blot for a downstream signaling protein.
Animal Protocol
In an animal study, a drug candidate derived from (S)-3-Amino-2-oxo-azepane hydrochloride could be evaluated for its analgesic activity. Mice are administered the test compound orally (10-50 mg/kg) 30 minutes before being placed on a hot plate (55degC). The latency to paw licking or jumping is recorded. A significant increase in latency compared to the control indicates an analgesic effect. Ofloxacin is a known fluoroquinolone antibiotic.
ADME/Pharmacokinetics
N-Desmethyl ofloxacin exhibits antibacterial activity, inhibiting DNA gyrase and topoisomerase IV in bacteria. It is used as an analytical standard.
Toxicity/Toxicokinetics
N-Desmethyl ofloxacin is a metabolite of ofloxacin formed via N-demethylation by CYP450 enzymes.
References

[1]. Biochemical reagents[M]//Methods of Enzymatic Analysis. Academic Press, 1965: 967-1037.

Additional Infomation
In vitro activity is assessed by MIC assays. For in vivo animal studies, ofloxacin is administered, and the metabolite is measured in plasma.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C6H13CLN2O
Molecular Weight
164.63
Exact Mass
128.094
CAS #
26081-07-2
PubChem CID
12228560
Appearance
Solid powder
Density
1.0±0.1 g/cm3
Boiling Point
315.1±35.0 °C at 760 mmHg
Flash Point
144.4±25.9 °C
Vapour Pressure
0.0±0.7 mmHg at 25°C
Index of Refraction
1.470
LogP
-1.64
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
2
Rotatable Bond Count
0
Heavy Atom Count
10
Complexity
114
Defined Atom Stereocenter Count
1
SMILES
O=C1NCCCC[C@@H]1N.[H]Cl
InChi Key
LWXJCGXAYXXXRU-JEDNCBNOSA-N
InChi Code
InChI=1S/C6H12N2O.ClH/c7-5-3-1-2-4-8-6(5)9;/h5H,1-4,7H2,(H,8,9);1H/t5-;/m0./s1
Chemical Name
(3S)-3-aminoazepan-2-one;hydrochloride
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 6.0742 mL 30.3711 mL 60.7423 mL
5 mM 1.2148 mL 6.0742 mL 12.1485 mL
10 mM 0.6074 mL 3.0371 mL 6.0742 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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