Description

Technical Parameters

Introduction

Selank2

Factory 2

musclepic 2

Products Description

Part 1: Basic Overview of Selank

Selank is a short peptide (heptapeptide) composed of seven amino acids, typically with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro. Researchers have optimized the structure of the traditional anti-anxiety peptide tuftsin to achieve higher stability, better bioavailability, and broader research applications. Compared to many traditional peptides, Selank possesses characteristics such as high solubility, slow degradation, low toxicity, and flexible application methods, thus it is often classified as a high-quality small molecule peptide.

Part 2: Classification and Grading of Selank

From a raw material perspective, Selank peptide powder can generally be divided into three main categories:

1. Pharmaceutical Grade Raw Materials

These products typically have a purity of 98% to 99% or higher, requiring compliance with strict impurity control and stability standards, and can be used in preclinical research, pharmacological experiments, or high-end formulation development.

II. Research-Grade Raw Materials

Used for laboratory research, cell experiments, and animal testing, with a purity of approximately 95% to 98%. Requirements for residual solvents and impurities are lower than pharmaceutical grade, but high-quality standards are still maintained.

III. Commercial Nutritional Peptide Grade

Suitable for market product development, such as peptide sprays, sublingual products, or other non-medical R&D products. Emphasis is placed on stability, solubility, and sensory quality.

Part 3: Physicochemical Properties

1. Molecular Structure and Molecular Weight

Selank is a small-molecule heptapeptide, typically with the molecular formula C33H57N11O9 and a molecular weight of approximately 751 Da. Its small molecular weight allows for easy diffusion in solvents, improving usability.

2. Solubility

Selank exhibits excellent solubility in water, weakly acidic solutions, and physiological saline, dissolving quickly and without the formation of flocculent precipitates. It has good stability under weakly alkaline conditions, but exposure to strong alkalis or organic solvents is not recommended to avoid degradation.

3. Stability

Selank's structural design provides strong resistance to enzymatic cleavage, making it more stable than many similar peptides. It can be stored for a long time in its lyophilized state. It is slightly sensitive to light and air at room temperature, therefore it must be stored in a light-protected, sealed container.

The stability period in the lyophilized state is typically 18 to 24 months.

4. pH and Heat Resistance

Its stable pH range is generally between 4.5 and 7.5. Short-term exposure to slightly higher temperatures will not cause rapid degradation, but long-term exposure to temperatures above 40 degrees Celsius will accelerate molecular breakage; therefore, cold chain storage is more reliable.

Part 4: Appearance and Color Characteristics of Selank

High-quality Selank peptide raw material powder typically has the following appearance characteristics:

Color: White to off-white powder; the closer the color is to pure white, the fewer impurities.

Appearance: Fine lyophilized powder, no visible particles.

Odor: No noticeable odor.

Touch: Dry and light, with low hygroscopicity, but prolonged exposure to air may still cause it to absorb moisture and clump.

If it appears bright yellow, slightly gray, or has obvious clumps, it may indicate improper storage, moisture absorption, or high impurity content.

Part 5: Key Advantages of Selank

1. High Structural Stability

Compared to many natural peptides that are easily and rapidly degraded, Selank, after structural optimization, is more resistant to temperature and enzymatic degradation, exhibiting greater stability in vivo and in experiments.

2. High Bioavailability

As a small molecule peptide, Selank dissolves rapidly in many solvents, facilitating various administration methods, including sprays, drops, and experimental injections.

3. Good Safety

Existing studies show that Selank has low toxicity levels, is unlikely to cause serious side effects, and has a wide tolerance range in animal experiments. It does not possess hormone or adrenal function, thus its safety profile is relatively friendly.

4. Wide Range of Applications

Including neuroscience research, stress mechanism research, cognitive experimental model establishment, and learning ability-related research. Its mechanisms often point to neurotransmitter regulation, such as GABA and BDNF (brain-derived neurotrophic factor).

5. Convenient Storage

The lyophilized powder facilitates transportation and long-term storage, is not easily degraded, and is suitable for use in laboratories, research institutions, and peptide product companies.

Part 6: Selank Manufacturing Process and Quality Standards

Selank is typically produced in batches using solid-phase peptide synthesis (SPPS) technology. It involves extending amino acid residues one by one onto a resin, followed by purification and lyophilization to obtain the final powder.

Quality control includes:

High-performance liquid chromatography (HPLC) for purity detection

Mass spectrometry (MS) for molecular weight confirmation

Amino acid sequence determination

Microbial limit testing

Residual solvent detection

Lyophilized water content testing

These steps determine whether the product meets the "high-quality peptide" standard.

Part 7: Selank Applications

1. Neuroscience Research

Used to explore the GABA system, anxiety response mechanisms, cognitive pathways, etc.

2. Mental and Behavioral Model Research

Including stress models, attention models, or emotional behavior models.

3. Cognitive, Memory, and Learning Experiments

Some research teams use Selank to investigate its effects on neural network regulation and synaptic plasticity.

4. Biotechnology and the Peptide Industry

Selank is commonly used in the development of oral peptides, sublingually soluble peptides, high-purity research peptides, and complex peptide formulations.

Part 8 Storage and Transportation

It is typically stored as a lyophilized powder, ideally refrigerated at 2 to 8 degrees Celsius.

Avoid light and high temperatures. Cold chain packaging is recommended for transportation.

The solution is not suitable for long-term storage and should be prepared and used immediately.

Part 9 Summary

As a high-quality peptide with refined structure, high stability, and broad research value, Selank not only exhibits superior physicochemical properties but also attracts significant attention from scientific research and industry due to its good safety profile and multi-directional application potential. From appearance, performance, and classification to stability analysis, every indicator gives it high professional and product value in the peptide field. In the future, with the development of peptide science, Selank is expected to demonstrate even greater potential in more research areas.