Selank TP-7 CAS 129954-34-3 Synthetic Heptapeptide Lyophilized Powder High Purity 99% HPLC Tested

# Frequently Asked Questions Q: Can I get free samples? A: Yes, free samples of most products are available; you only need to cover the shipping cost. Q: What payment methods do you accept? A: We support bank transfer, T/T, PayPal, credit card, etc. For bulk orders, letters of credit (L/C) are also acceptable. Q: Will I receive a tracking number after shipment? How long does delivery take? A: We will send you the tracking number and official tracking website once goods are dispatched. Standard courier transit time is 3–7 days. For shipments facing customs clearance risks, we adopt dedicated special shipping lines, with delivery within 10–12 days and a 100% delivery guarantee. Q: How do you guarantee product quality? A: We provide full test certificates for all goods. You may also send samples to third-party labs for independent inspection. Full refund will be issued if counterfeit products are confirmed. Q: What are the storage requirements? A: Unopened vials should be stored in a cool and dry place. Once opened, refrigerate at 2–5°C. Q: How to place an order for this product? A: Click "Contact Supplier" or send inquiry emails to our mailbox with detailed requirements. We will reply promptly and discuss order details with you. Q: What is your lead time for delivery? A: Goods will be shipped within 48 hours upon receipt of payment. Small orders are delivered door-to-door via express and arrive in around 7–10 days. Q: Do you support cash on delivery? A: Cash on delivery is unavailable in most cases. Q: What is the product price? A: Chemical prices fluctuate with market conditions and are not fixed. Contact us to get the latest quotation, and we guarantee the most competitive rate for you. Q: What about after-sales service? A: Our professional technical and after-sales teams provide full support to resolve all technical and order issues after purchase. # Company Information We possess strong R&D capabilities, mature synthesis technology and strict quality control systems. We actively carry out joint cooperation with mainstream enterprises and manufacturers, adhering to industrial innovation concepts to serve global clients. We keep pace with market demands and continuously develop new high-tech chemicals and pharmaceutical intermediates. Our products are mainly exported to the US, Europe, India, South Africa, Nigeria and other regions. With rich cross-border shipment experience, we ensure secure transportation so customers receive goods safely and promptly.

About Us
SYS specializes in developing and globally distributing high-quality research use only (RUO) raw materials, including peptides, small molecules, and biochemical reagents.
Our products are widely used in life science research, drug discovery, cosmetics, anti-aging medicine, and functional health industries.
1. Excellent product quality
Product quality is the cornerstone of our business. Peptides are synthesized via solid-phase peptide synthesis (SPPS), purified by high-performance liquid chromatography, and confirmed by mass spectrometry (MS).
Each batch includes a Certificate of Analysis (COA), with key data including:
• Purity (HPLC)
• Molecular weight (MS)
• Moisture content
• Residual solvents
• Microbial limits (if applicable)
For customers with higher regulatory requirements, we can also provide third-party test reports, endotoxin (LAL) data, and stability studies upon request.
2. Customization and R&D Support
We offer flexible custom synthesis services supported by an experienced R&D team. Whether you're seeking novel peptide sequences, cosmetic-grade purity, or modified molecules (such as cyclization or acetylation), we deliver high-quality results on time.
Our services include:
• Custom peptide synthesis (from milligrams to kilograms)
• Peptide modification and labeling
• Small molecule synthesis
• Project-based research and scale-up
We work closely with clients to ensure technical feasibility, rapid delivery, and cost control throughout the entire development cycle.
3. Extensive product range
We offer a comprehensive and continuously expanding product line:
• Peptides: GLP-1 analogs (e.g., semaglutide, tirzepatide, retatrutide), cosmetic peptides (e.g., acetyl hexapeptide-8, Matrixyl), anti-aging peptides, and research peptides.
• Small molecules: nootropics, NAD+ boosters (e.g., NMN, NR, NADH), and intermediates.
• Biochemicals: amino acid derivatives, enzyme cofactors, and custom reagents.
New products are regularly introduced to meet evolving market demands. We also support bulk orders from customers for ongoing or seasonal needs.
Product Name: Retatrutide
CAS No.: 2381089-83-0
Appearance: White lyophilized powder
Purity: ≥99%, Detected by HPLC
Molecular Formula: C171H266N44O52S
Molecular Weight: 3994.35 g/mol
Solubility: Soluble in sterile pure water for lab test
Storage Condition: Sealed storage at -20°C, protected from light and humidity
Packaging: 5mg, 10mg, 50mg, 100mg vial package
For transportation, we use FedEx. Once the order is placed, it will be dispatched immediately and arrive within 7 to 15 days.
1. Ultra-high purity
Each batch is synthesized and purified to a purity of >99% (HPLC) to ensure reliable and repeatable results in sensitive experiments.
2. Accurate dosage and consistency
Our peptides are precisely weighed and vacuum-sealed under sterile conditions. Batch-to-batch consistency is strictly maintained.
3. Free of endotoxins and sterile processing
Our peptides are manufactured in a cleanroom environment and do not contain endotoxins, microbial contamination, or other impurities that may interfere with cell-based or in vivo studies.
1. Peptide Synthesis Expertise
Rich Experience: 7 years of experience in peptide synthesis development.
Technical Team: Experts in solid-phase and liquid-phase synthesis.
2. Advanced Manufacturing Capabilities
Advanced Facilities: High-precision equipment ensures purity and biological activity.
Scaleable Production: From milligram-level research peptides to kilograms of industrial batches.
3. Innovation and Customer Commitment
Reliable Supply Chain: Competitive prices and timely global delivery.
Global Coverage: Trusted by global researchers, pharmaceutical companies, and industrial customers.

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