HPLC purity
Reverse-phase HPLC with UV detection; purity target reported per lot with related-substance reporting on request.
GDF-8HPLC ≥ 99%MS confirmed1mg
Vial illustrations reflect supplied lyophilized format. Distribution scope and destination market confirmed before invoicing.
| Compound | GDF-8 |
|---|---|
| CAS number | 271597-12-7 |
| Molecular weight | ≈25 kDa mature disulfide-linked homodimer (2 × 109 aa, ~24.8 kDa / 24814 Da); ~12.4 kDa monomer under reducing conditions |
| Form | Lyophilized powder, glass vial |
| Purity target | ≥ 99% by HPLC |
| Vial formats | 1mg |
| Documentation | Batch-document availability confirmed by product, specification and applicable lot |
| Distribution scope | Research use, worldwide |
| Storage | Store the lyophilized powder at -20°C, protected from light; typically stable ~24 months as supplied. After reconstitution with a suitable sterile buffer, keep the working solution at 2–8°C for short-term use, or aliquot and store at -20°C to minimize freeze-thaw cycles. |
MOQ & lead time
| Tier | Quantity | Lead time |
|---|---|---|
| OEM lot | 50 kits (500 vials) | 3–7 days |
| Production lot | 500–1,000 vials | 10–14 days |
| OEM repeat | 1,000+ vials | 14–18 days, scheduled |
Supplied as a research-use peptide. Every quote confirms current-batch COA, purity, destination market and buyer track before invoicing.
Overview
About GDF-8.
GDF-8 (growth/differentiation factor 8, or myostatin) is a secreted TGF-β superfamily protein whose mature ~25 kDa disulfide-linked homodimer signals through activin type II receptors and the Smad2/3 pathway to act as a negative regulator of skeletal muscle mass. In research settings it is used in muscle-atrophy and hypertrophy models and in the characterization and screening of myostatin/activin-pathway inhibitors.
Documentation
Batch documentation support for GDF-8 lots.
batch-document availability confirmed by product, specification and applicable lot. Distribution scope confirmed before invoicing.
MS identity
Mass spectrometry identity confirmation against the GDF-8 reference profile.
Lot traceability
Compound prefix and lot serial printed on the vial label and repeated in the document pack and carton.
FAQ
GDF-8 — frequently asked by B2B buyers.
Is GDF-8 the same as myostatin?
Yes. GDF-8 (growth/differentiation factor 8) and myostatin are the same TGF-β-superfamily protein, also catalogued as MSTN. Pepti supplies it as a lyophilized research-grade recombinant protein for in-vitro laboratory use only.
What format and vial size does Pepti supply?
GDF-8 ships as a lyophilized (freeze-dried) powder in 1mg vials. The mature protein is a disulfide-linked homodimer of ~25 kDa; the exact recombinant construct and expression host are stated on each batch COA.
What documentation accompanies each batch?
For the applicable lot, Pepti confirms the available document set during RFQ review. Depending on the product and lot, the set can include a Certificate of Analysis reporting identity, purity by RP-HPLC and/or SDS-PAGE, and endotoxin (only if specifically ordered and tested) level. Additional third-party HPLC/MS verification and QC data are available on request for qualified B2B accounts.
What is the minimum order quantity, and are OEM or private-label options available?
MOQ is 50 kits (500 vials). Pepti manufactures to order and offers bulk supply, custom fill volumes, and private-label / OEM packaging and labeling for research-supply distributors and brands.
What purity can be expected?
A ≥99% HPLC purity target may be quoted unless a different RFQ specification is agreed; the acceptance criterion and actual result must be confirmed for the applicable lot.
Related compounds
Related research peptides.
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