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Nootropic API Selank Peptide CAS:129954-34-3 Neuroprotective Synthetic Heptapeptide

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Unit Price:

$135-165/G FOB

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CAS No.:

129954-34-3

Grade:

Pharmaceutical Grade

Content:

99.9%

Port:

Hangzhou

Brand:

HyperChem

Packaging:

1kg/bag, 5kg/bag, 25kg/Drum

Price valid (until):

2028-07-31

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Hangzhou Hyper Chemicals Limited

Company Type:

Trader

Location:

China

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Main Products:

Pharmaceuticals,Peptide,Cosmetics,Nutritional Supplements

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Product Description
Seller Information
Inquiry History

Description

Name	Selank
CAS number	129954-34-3
Synonym	Factory Supply Selank; Hot SaleSelank; Low MOQ Selank; Fast Delivery Selank; Wholesale Selank
Related APIs #	1. Semax, CAS 80714-61-0 2. N-Acetyl Selank Amidate, CAS 2212313-10-6 3. N-Acetyl Semax Amidate, CAS 2920938-90-3 4. DSIP (Delta Sleep-Inducing Peptide), CAS 62568-57-4 5. Pinealon, CAS 177584-07-9 6. Tuftsin, CAS 9063-57-4 7. Adalank, CAS 2411410-15-4
Description	Selank Peptide (CAS 129954-34-3) Professional Product Introduction Selank Peptide, registered under CAS number 129954-34-3, is a synthetic heptapeptide developed as a structural analog of tuftsin, a naturally occurring immunomodulatory peptide found in mammalian physiological systems. This synthetic peptide has become a staple research raw material for neuroscience laboratories, biochemical research institutes and pharmaceutical formulation development teams globally, valued for its dual regulatory activity over central nervous system balance and immune function modulation. This overview details its chemical and physical characteristics, core biological effects, intracellular regulatory mechanisms, and mainstream research applications, with no reference to hazardous chemical substances, restricted active pharmaceutical ingredients, or liquid administration forms Chemical and Physical Properties The molecular structure of Selank Peptide consists of seven linked amino acid residues, forming a hydrophilic linear peptide chain with the molecular formula C33H57N11O9 and a molecular weight of 747.88 g/mol. Commercial research-grade Selank exists as a pure lyophilized off-white crystalline powder under standard ambient storage environments. The material features minimal hygroscopicity, granting outstanding long-term chemical stability when sealed and stored at low temperatures between 2°C and 8°C away from direct light and moisture. Thermal stability testing confirms no structural degradation occurs during routine short-term room-temperature handling, eliminating complex cold-chain transportation requirements for small laboratory shipments. Solubility profiles demonstrate high compatibility with aqueous solutions such as purified water and mild buffered media, alongside moderate dissolution in polar organic solvents with Standard factory purification processes deliver a minimum chromatographic purity of 99% verified by high-performance liquid chromatography, with heavy metal residuals and residual peptide synthesis reagents controlled to meet international laboratory testing standards. All bulk batches are supplied with complete supporting documentation including certificates of analysis, mass spectrometry validation data, nuclear magnetic resonance spectra and material safety data sheets to satisfy cross-border research procurement compliance requirements. Packaging specifications range from gram-scale laboratory vials to sealed multi-kilogram bulk drums for large institutional research projects, with standardized traceability records for all production batches. The purified peptide powder carries no hazardous material classification under general fine chemical logistics guidelines for academic research use. Core Biological Functions and Research-Documented Effects Selank Peptide is primarily investigated for its combined nootropic, mood-balancing and immune-supporting properties, targeting unregulated nervous system response to chronic environmental stress as its core research focus. A primary observed effect is consistent regulation of overactive stress signaling pathways, supporting steady emotional equilibrium without inducing severe inhibitory effects on central nervous system activity common to alternative nervous system modulators. Long-term preclinical research records show sustained exposure to Selank stabilizes circulating stress biomarker levels, reducing elevated marker concentrations triggered by prolonged environmental pressure and restoring baseline physiological balance within short continuous treatment cycles. Beyond stress regulation, Selank delivers measurable cognitive supportive effects across multiple preclinical study models. Research data highlights improved focus capacity, stabilized memory retention and enhanced learning efficiency in test subjects exposed to sustained mental strain. Unlike broad-spectrum cognitive modulators that create overstimulated neural activity, Selank delivers gentle, balanced neural support without disrupting natural circadian neural rhythm patterns. The peptide also exerts mild immune regulatory activity by modulating the activity of phagocytic immune cells, optimizing innate immune response efficiency while avoiding excessive inflammatory signal activation. Combined nervous and immune regulatory activity makes Selank a unique research compound for studying the bidirectional communication pathways linking central neural function and systemic immune performance. Mechanism of Biological Action Selank’s multi-target regulatory activity originates from its structural similarity to endogenous tuftsin, enabling the peptide to cross biological tissue barriers and interact with two primary biological signaling networks: central neurotransmitter pathways and peripheral immune cell receptor sites. Within neural tissue environments, Selank modulates the turnover and binding efficiency of key mood-regulating neurotransmitters, including serotonin and gamma-aminobutyric acid, without irreversible binding to neurotransmitter receptor complexes. It normalizes excessive neural signal discharge triggered by stress stimuli by moderating secondary messenger cascade activity inside neuronal cells, gradually lowering hyperactive neural signaling rather than fully blocking normal neurotransmission. At the immune cell level, Selank binds to specific surface receptors on phagocytic cell populations to balance cellular activation thresholds. It boosts baseline immune cell clearance capacity for foreign biological particles while suppressing overproduction of pro-inflammatory signaling molecules that drive chronic inflammatory stress responses. A critical distinguishing feature of Selank’s mechanism is its modulatory rather than suppressive or stimulatory mode of action: it restores homeostatic balance to overactive or underactive biological pathways instead of artificially overriding natural physiological feedback loops. Pharmacokinetic research further validates its suitability for long-duration research testing. After absorption across mucosal tissue barriers, Selank maintains steady systemic target engagement with a moderate metabolic clearance rate, supporting once-daily dosing regimens for consistent experimental data collection. Metabolic breakdown occurs via natural peptide degradation pathways into individual amino acid fragments that integrate into standard cellular metabolic cycles, leaving no persistent accumulated metabolites within bodily tissue systems. This gentle metabolic profile minimizes interference with auxiliary experimental variables during in vivo and in vitro laboratory trials. Industrial and Laboratory Research Applications High-purity Selank lyophilized powder serves three primary global buyer groups: academic neuroscience laboratories researching stress and cognitive physiology, biotech development teams exploring novel nervous system balancing formulations, and analytical standard suppliers providing reference materials for peptide pathway screening assays. Its dual neuro-immune regulatory profile makes it an essential positive control compound for in vitro neural cell culture testing, ex vivo immune cell functional analysis, and in vivo stress animal model research. Global bulk purchasers prioritize consistent batch-to-batch purity, complete analytical certification and stable supply capacity, all standard deliverables for factory-produced Selank research peptide material suitable for non-clinical laboratory development work.
Molecular Formula	C ₃₃ H ₅₇ N ₁₁ O ₉
Molecular Weight	751.9 g/mol
Appearance	White or almost white powder
Quality Standard	Enterprise standard
Shipping Condition	Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition	Dry, dark and at 0-28℃ for short term (days to weeks) or 8-20 ℃ for long term (months to years).
Shelf Life	>2 years if stored properly
Sample package	Double plastic bags inside, fiber drum outside, any quantity available.
Commercial package	Aluminium Tin, Fiber drum
Origin	China

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FAQ

Q1. What is the Hyper chem payment term?
T/T advance
LC at sight
DP at sight
Trade assurance
Money gram

Q2. What is Hyper chem shipment policy?
Our policy is to strive for the quickest shipment time possible, with ready stock sample shipment typically going out the same day that your order was placed. Your satisfaction is very important to us.
For non-ready stock, please contact the Hyper Chem sales team to negotiate.

Q3. What hyper chem will provide after shipment?
For sample orders:
After shipment is done, an timely email including:

Track details (Fedex /TNT/DHL/EMS Track number)

Package photo

COA, MSDS, etc

Dispatch date & Estimated arriving time

Shipping invoice

For commercial orders
A full set of shipment documents as well as package photos can be provided
in scan-copy and original, to help customers complete the customs clearance process.

Q4. What is Hyper Chem shipment term?

By Express
DHL  FedEx  TNT  EMS
Fast:5 days around
High cost, door to door service

By Air
Suitable for more than 50kg
Fast :3-7 days Hight cost, port to port, professional broker needed

By Sea
Suitable for more than 500kg
Slow:7-45 days, Low cost, port to port, professional broker needed
We will always attempt to utilize the quickest and most affordable way for customers to receive orders. And follow -up with customers via email for all shipment details as well as updated track information until it arrives without damage.

Q5. Does hyper chem provide a shipment return policy?
Yes, we have.
Return Policy: At Hyper chem, your satisfaction is guaranteed. If you are dissatisfied for any reason with a product, please send back the unused portion along with your packing slip and a brief note on why you were dissatisfied within 45 days of purchase for a full refund to:

Q6. What is hyper chem After-sales service
•Documents support: COA ,MSDS, MOA ,MS Report,HNMR Report,SDS,DMF
• Customer Support: Shipment clearance support, quality issue support
• Automated Customer Service: Our worldwide customers enjoy immediate 24/7 access to the HYPER CHEM support team from any location, at any time.

Company profile

Established in 2013, Hyper Chem has exclusive tie-ups with leading manufacturers, supplying raw materials produced in GMP and ISO 9002 certified facilities, and provides high-quality ingredients and raw materials to cater to the requirements of our diverse range of clients.

Among them, our key client industrial sectors around the global are:

Pharmaceuticals
Nutrition Ingredients/ Dietary supplements
Cosmetic Ingredients
Food Ingredients
Veterinary API
Agriculture fertilizer
Custom Synthesis lab supply

HyperChem provides to its wonderful and honorable clients comprehensive purchasing and distribution services which ensure that we are delivering the right generic, raw, or customized product, make sure that we are delivering it at the right time, ensure that it is delivered in the specified amount, and in the right kind of packaging to clients and customers of all types of industries irrespective of their size of operation.

SELANK Synthetic is a single, non-glycosylated polypeptide chain containing 7 amino acids, having a molecular mass of 751.89 Dalton and a Molecular formula of C33H57N11O9.

Research & Reference Note

Nootropic API Selank Peptide CAS:129954-34-3 Neuroprotective Synthetic Heptapeptide is listed on ECHEMI for industrial / laboratory sourcing. This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.

Authoritative sources

Disclaimer: This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.

Reviewed by ECHEMI Scientific Review - Platform editorial review for research chemicals

Certificates

Basic Info

Product Name:

Selank peptide

Other Name:

Selank peptide;SelankAcetate;PL14736;L-threonyl-L-lysyl-L-prolyl-L-arginyl-L-prolylglycyl-L-proline;L-THREONYL-L-LYSYL-L-PROLYL-L-ARGINYL-L-PROLYLGLYCYL-L-PROLINE; MONOACETATE;H-Thr-Lys-Pro-Arg-Pro-Gly-Pro-OH;SLANK;Selank peptid

CAS No.:

129954-34-3

Molecular Formula:

C33H57N11O9

InChIKeys:

JTDTXGMXNXBGBZ-YVHUGQOKSA-N

Molecular Weight:

751.87

Exact Mass:

751.43407244

EC Number:

232-660-2

UNII:

TS9JR8EP1G

Categories:

Nervous System Drugs

Characteristics

Density:

1.53±0.1 g/cm3(Predicted)

Melting Point:

134-136 °C

PKA:

3.43±0.20(Predicted)

See More Selank peptide Properties 

Seller Information

Business Type:
Trader

Main Products:
Pharmaceuticals,Peptide,Cosmetics,Nutritional Supplements

Location:
Rm. 803, Tower 4, LOFT49 Creative City Pioneer Zone, No.88 Jiru Rd. Gongshu Dist., Hangzhou, 310015 ZJ, China

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$5 million-$10 million

Total Employees:
11-50

Year of Establishment:
2013

Certifications:
Certification Report by Bureau Veritas

About HyperChem

Established in 2013, Hyper Chem has exclusive tie-ups with leading manufacturers, supplying raw materials produced in GMP and ISO 9002 certified facilities, and provides high-quality ingredients and raw materials to meet the needs of a diverse range of pharmaceutical cosmetics ingredients and nootropic supplements companies worldwide.

Our Competitiveness

One-stop supply

Wide Range Of products including pharmaceutical, Cosmetic Ingredients and nootropic supplements

Among all the pharmaceuticals,

90% of them with GMP certificates,

85% of them with DMF files and

50% of them passed FDA approval,

30% get CEP certificate

20% are new R&D products.

Custom Repackaging Service

We can efficiently repackage your material into sample sizes, custom batch-specific sizes, or semi-bulk package sizes according to your specifications. And ensures the product is packaged in a quality-controlled environment and will maintain its integrity throughout every stage of the process.

Quality Control/Quality Assurance

HyperChem is committed to delivering on its promises of top-quality products with verified quality data.

All materials are vigorously inspected by the factory and/or outsourced analytical laboratories to ensure each and every lot meets or exceeds our reference standards.

Trade assurance service with 100% payment protection, It is best achieved by delivering products and services 100% right the first time, on time, every time.

Professional

Transparent Communication

Fast Reaction,

Professional Suggestion

Beyond Expectation.

We have exclusive partnerships with research and production facilities across the country and we offer varied pharmaceutical services in the most cost-efficient way. The production facilities are GMP, WHO-GMP, EU GMP and US FDA approved and are backed by strong regulatory support such as Dossier, DMF, Tech Pack and relevant Stability studies for regulatory filings.

Inquiry History

35 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	Selank 99% Purity 129954-34-3	1 G	Jan 23, 2026
Greece	selank	10 MG	May 20, 2026
United States	N acetyl selank	500 MG	Apr 30, 2026
United States	Selank	100 MG	Apr 24, 2026
Italy	Nacetyl selank	1 MT	Apr 22, 2026
Oman	Selank	1 G	Mar 4, 2026
United States	Selank	30 40' Fcl	Oct 14, 2025
United States	selank	30 MG	May 25, 2026
Brazil	Selank	10 MT	Apr 7, 2026
United States	selank	1 G	Mar 13, 2026
United States	Selank	1 G	Mar 9, 2026
United Kingdom	Selank	1 G	Dec 22, 2025
United States	Selank	20 MG	Nov 10, 2025
United States	NA-Selank Amidate	10 MG	Sep 18, 2025
United Kingdom	Selank	100 MG	Jul 15, 2025
United States	N-Acetyl Selank Amidate	1 KG	Jan 9, 2025
United States	Selank	10	Mar 29, 2024
Poland	Selank	10 G	Feb 18, 2024
United States	Selank	1 G	Jan 27, 2024
United States	selank	100 MG	Jul 7, 2026

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Nootropic API Selank Peptide CAS:129954-34-3 Neuroprotective Synthetic Heptapeptide

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