HPLC purity
Reverse-phase HPLC with UV detection; purity target reported per lot with related-substance reporting on request.
Orexin BHPLC ≥ 98%MS confirmed5mg
Vial illustrations reflect supplied lyophilized format. Distribution scope and destination market confirmed before invoicing.
| Compound | Orexin B |
|---|---|
| CAS number | 205640-91-1 |
| Class | Neuro & other |
| Molecular formula | C123H212N44O35S |
| Molecular weight | 2899.34 g/mol (PubChem 2899.3; ChemicalBook 2899.34) |
| Sequence | RSGPPGLQGRLQRLLQASGNHAAGILTM-NH2 (H-Arg-Ser-Gly-Pro-Pro-Gly-Leu-Gln-Gly-Arg-Leu-Gln-Arg-Leu-Leu-Gln-Ala-Ser-Gly-Asn-His-Ala-Ala-Gly-Ile-Leu-Thr-Met-NH2; human, C-terminally amidated, 28 residues) |
| Form | Lyophilized powder, sterile glass vial |
| Purity target | ≥ 98% by HPLC |
| Vial formats | 5mg / 10mg |
| Documentation | COA + HPLC + MS, batch lot file where available |
| Distribution scope | Research use, worldwide |
| Storage | Store lyophilized powder at -20°C, protected from light and moisture; stable for extended periods when sealed. After reconstitution, hold at 2-8°C for short-term research use or aliquot and freeze at -20°C for longer storage, and minimize freeze-thaw cycles. For laboratory research use only. |
MOQ & lead time
| Tier | Quantity | Lead time |
|---|---|---|
| Sample lot | From 50 vials | 3–7 days |
| Production lot | 200–1,000 vials | 10–14 days |
| OEM repeat | 1,000+ vials | 14–18 days, scheduled |
Orexin B (Hypocretin-2) is a 28-amino-acid, C-terminally amidated hypothalamic neuropeptide that signals preferentially through the OX2 receptor, supplied as a research-use reference peptide for B2B and private-label buyers.
Documentation
Batch documentation support for Orexin B lots.
COA / HPLC / MS document support where available. Distribution scope confirmed before invoicing.
MS identity
Mass spectrometry identity confirmation against the Orexin B reference profile.
Lot traceability
Compound prefix and lot serial printed on the vial label and repeated in the document pack and carton.
FAQ
Orexin B — frequently asked by B2B buyers.
What format and vial sizes does Pepti supply Orexin B in?
Orexin B is supplied as a lyophilized (freeze-dried) powder in sealed vials at 5 mg and 10 mg fill weights. Custom fill weights and bulk quantities are available on RFQ. Material is intended strictly for laboratory research use.
What documentation and purity are provided with each lot?
Each lot ships with a Certificate of Analysis reporting identity and purity by RP-HPLC (typically ≥98%) together with mass-spectrometry confirmation of molecular weight. Supporting data such as amino-acid analysis, water/acetate content, or residual solvent testing can be provided on request.
Which Orexin B variant do you supply, and what are its key specifications?
Our standard product is human Orexin B (Hypocretin-2), a 28-residue C-terminally amidated peptide: CAS 205640-91-1, molecular formula C123H212N44O35S, MW approximately 2899.4 g/mol, sequence RSGPPGLQGRLQRLLQASGNHAAGILTM-NH2. Rat/mouse sequence variants can be quoted separately on request.
What is the minimum order quantity for private-label or OEM orders?
Standard MOQ is 50 vials. We provide private-label and OEM services including custom labeling, kitting, and lot documentation; larger volume tiers and contract-manufacturing terms are quoted on RFQ.
Is Orexin B sold for research use only?
Yes. Orexin B is offered exclusively as a research-use reference material for laboratory and manufacturing customers. It is not a drug, food, cosmetic, or dietary supplement and is not supplied for human or veterinary use. Buyers are responsible for compliance with applicable regulations in their destination market.
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