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-linked COA + HPLC chromatogram + MS identity record for every production 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-linked COA, HPLC chromatogram and MS identity record for every production 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?
Every lot ships with 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?
Production lots target ≥99% HPLC purity unless a special RFQ specification is agreed; the actual lot result is shown in that lot's batch-linked COA and supporting records.
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