Fragment 176-191 Research Peptide
Fragment 176-191 is a short chain copied from the tail end of human growth hormone, which is 191 links long in full.
- Purity
- >99%
- Dispatch
- Dispatched next business day with cold-chain delivery
- Cold chain
- Temperature-controlled packaging from lab to door
- Certificate
- Certificate of Analysis available on request for this batch
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Ships Next Day
Orders confirmed before 12pm EST ship the same business day; orders after 12pm EST ship the next business day. Monday to Friday.
Quality Guaranteed
Every batch is HPLC-tested to >99% purity. Certificate of Analysis available on request; MSDS available on request.
Certificate of Analysis Available on Request
Request this batch's certificate using your order number.
What is Fragment 176-191?
Fragment 176-191 is a short chain copied from the tail end of human growth hormone, which is 191 links long in full. The related product AOD-9604 is the same tail piece with a tyrosine added at the front. Both have been studied for what the tail end of growth hormone does to fat tissue, separately from what the whole hormone does to growth. All the published work is in obese rats and obese mice.
Technical Specs
Labeled quantity is net peptide content, not gross salt weight.
Fragment 176-191 Research & Reference
What Fragment 176-191 does in published studies, and how to work with it in the laboratory, are covered in full on two dedicated pages rather than summarised here, so neither the evidence nor the handling detail is cut short.
Safety Data Sheet
The safety data sheet for Fragment 176-191 is below as a PDF, in the 16-section GHS format covering identification, hazards, handling, storage and disposal.
Frequently Asked Questions
Is Fragment 176-191 independently tested for purity?+−
Yes. Every batch of Fragment 176-191 is tested by an independent third-party laboratory using HPLC and MS-UPLC, confirming purity and mass identity before the batch is released. Pure Peptides does not test its own material.
What does "Research Use Only" mean?+−
It means Fragment 176-191 is supplied for in-vitro laboratory research and for no other purpose, and must not be administered to humans or animals. Fragment 176-191 is legal to purchase in the United States for in vitro and non-clinical laboratory research. It carries no FDA approval or therapeutic indication for human use. Fragment 176-191 appears in section S2 of the WADA Prohibited List for competitive athletes, a separate consideration from its legal research status. Sold strictly for qualified research use, not human or veterinary administration.
How is Fragment 176-191 shipped and stored?+−
Fragment 176-191 ships from US stock with cold-chain packaging and full tracking; orders placed before noon EST on business days are typically dispatched the same business day. On arrival, store the lyophilized powder at -20°C or below, dry and protected from light.
How is Fragment 176-191 different from AOD-9604?+−
AOD-9604 is Tyr-hGH(177-191): it substitutes a tyrosine for the phenylalanine that sits at position 176 of growth hormone. Fragment 176-191 is the unmodified peptide. The two have overlapping but separate published literature, and this site reports each one's findings on its own page. Note that the published studies of the unmodified fragment used a peptide beginning at residue 177.
Related Compounds
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