B7-33
For research and laboratory use only. Not for human or animal consumption.
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Reship or refund
Storage & handling: Store at 2–8 °C (≤ –20 °C long-term), away from light. Ships at ambient temperature.
Shipping
Regular tracked: $15 per order, 5 to 10 days. Express tracked: $25 per order, 3 to 5 days. Orders are dispatched within 24–48 business hours. Regular shipping is free on orders over $200 and express on orders over $400, after discounts.
Research & Education Tool
Peptide Dosage Calculator
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B7-33 (5mg) is available exclusively for research and institutional use. Researchers can buy B7-33 peptide online through secure ordering channels.
Laboratories may order B7-33 in standardized units to support controlled research workflows. Each order includes documentation to ensure compliance with laboratory standards.
Product overview
B7-33 (5mg) is of scientific interest as a short peptide fragment. Peptides are small chains of amino acids, which are organic molecules that form the building blocks of proteins.
Researchers investigate B7-33 (5mg) to study molecular interactions and peptide behavior in controlled laboratory conditions. The content is strictly research-focused with neutral positioning, and no clinical or therapeutic claims are made.
Research focus
B7-33 (5mg) is investigated in research settings for structural, biochemical, and signaling studies. The phrase “investigated in research settings” indicates scientific observation without implying any outcomes, benefits, or applications.
Research may include analysis of molecular interactions, peptide stability, or biochemical behavior. Laboratory experiments maintain neutral, non-clinical objectives.
Methodological notes
B7-33 (5mg) is intended for laboratory handling only. Standard laboratory safety procedures should be followed during all research activities.
Store B7-33 (5mg) in a controlled environment with appropriate temperature and humidity conditions. Proper storage supports structural stability and reproducibility across batches.
This peptide is not a prescription product and is not suitable for human or veterinary use.
Quality & sourcing
Quality control testing for B7-33 (5mg) includes purity verification through liquid chromatography-mass spectrometry (LC-MS) and other analytical methods. LC-MS separates molecular components and confirms peptide structure and purity.
Batch consistency ensures reproducible experimental results. Analytical documentation accompanies each unit, supporting laboratory compliance and research-grade standards.
Units are labeled with batch numbers, pack size, and verified purity to streamline laboratory workflows and peptide research supply management.
Chemical properties
- CAS: 1818415-56-3
- Chemical Formula: C₁₃₁H₂₂₉N₄₁O₃₆S
- Molecular Weight: 2986.54 g/mol
- Peptide Sequence: Val-Ile-Lys-Leu-Ser-Gly-Arg-Glu-Leu-Val-Arg-Ala-Gln-Ile-Ala-Ile-Ser-Gly-Met-Ser-Thr-Trp-Ser-Lys-Arg-Ser-Leu-NH₂
- Shelf life: 24 months from the manufacturing date.
B7-33 (5mg) consists of a biologically characterized peptide fragment. Peptides are composed of amino acids, the organic molecules that form chains to create peptide structures.
Analytical techniques such as mass spectrometry or chromatography are used to confirm molecular structure. These tests verify molecular weight, integrity, and purity, supporting research-grade accuracy.
No additional excipients are included, ensuring consistent peptide purity for laboratory experiments.
Key features
Research-Grade Purity
B7-33 (5mg) is produced to research-grade purity standards. Purity refers to the proportion of the intended peptide in each unit. Purity verification ensures consistent quality and reliable results across experiments.
Structurally Defined Peptide Fragment
Structural definition allows reproducible laboratory findings. B7-33 (5mg) is monitored for molecular consistency, which supports accurate peptide research studies.
Designed for Laboratory Workflows
The peptide is supplied in standardized units. Pack size, labeling, and documentation facilitate integration into research workflows. Laboratories can manage peptide research supply efficiently.
Express tracked
- Tracked door to door, dispatched within 24–48 business hours
- Ambient shipping, safe for lyophilized peptides
Regular tracked
- Free on orders over $200
- Tracked door to door, dispatched within 24–48 business hours
What form is this product supplied in?
It is supplied as lyophilized (freeze-dried) powder in a sealed vial.
Do peptides need to be shipped cold?
Lyophilized peptides are stable at ambient temperature for the duration of shipping. Room-temperature (ambient) shipping is our standard and is safe for lyophilized product.
How should I store peptides before reconstitution?
Keep vials sealed in a cool, dry place away from light. Refrigeration (2–8 °C) extends long-term stability.
How should peptides be handled after reconstitution?
Once reconstituted, store refrigerated at 2–8 °C and use within 28 days.
Can I cancel my order?
Orders can be cancelled until 11:59 PM CST on the day they are placed.
What if my order arrives wrong or damaged?
We do not accept returns. If your order arrives wrong or damaged, we reship it or refund it, whichever you prefer. If your order has not arrived, contact us and we will look into it.
Lab results
View all lab reports- CAS: 1818415-56-3
- Chemical Formula: C₁₃₁H₂₂₉N₄₁O₃₆S
- Molecular Weight: 2986.54 g/mol
- Peptide Sequence: Val-Ile-Lys-Leu-Ser-Gly-Arg-Glu-Leu-Val-Arg-Ala-Gln-Ile-Ala-Ile-Ser-Gly-Met-Ser-Thr-Trp-Ser-Lys-Arg-Ser-Leu-NH₂
- Shelf life: 24 months from the manufacturing date.
B7-33 (5mg) consists of a biologically characterized peptide fragment. Peptides are composed of amino acids, the organic molecules that form chains to create peptide structures.
Analytical techniques such as mass spectrometry or chromatography are used to confirm molecular structure. These tests verify molecular weight, integrity, and purity, supporting research-grade accuracy.
No additional excipients are included, ensuring consistent peptide purity for laboratory experiments.
Save up to 25%.
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Delivered tracked, every order.

Shipping options
Dispatched in 24–48 business hours.
Regular tracked$15 per order · 5 to 10 days
Express tracked$25 per order · 3 to 5 days
Free shippingRegular over $200 · express over $400, after discounts
Researchers often ask
Is B7-33 for human use?
No. B7-33 is sold for laboratory research only. It is not for human or veterinary use, and it is not a drug, food or cosmetic.
How do I find the lab report?
Use View COAs on the product page, or search the COA library by compound name. The summary is public; the signed PDF reports are available to signed-in researchers.
Why is purity measured by LC-MS?
LC-MS separates the sample and identifies each component by its mass, so one run confirms identity and measures purity.
When will my order ship?
Orders are dispatched within 24–48 business hours. Regular tracked delivery takes 5 to 10 days and express tracked 3 to 5 days. Regular shipping is free on orders over $200 and express on orders over $400, after discounts.
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