Dispatched same day before 4pm

Orexin A research vial
PepNex
Orexin A
5mg
Research use only

Orexin A

Supplied in 5 mg vials. UK-stocked line, back in soon.

Batch certified
UK stock, same-day
Stored cold, shipped & sealed safely

Out of stock. A certificate of analysis is published with the first batch.

Strength
How many vials?
Out of stock

Not currently available. A certificate of analysis is published with the first batch.

For laboratory research use only. Not for human or animal consumption, and not a drug, food, or cosmetic. Sold to qualified researchers and institutions.

About Orexin A

Molecular weight
3561.1 g/mol
CAS number
205640-90-0

Orexin A (hypocretin-1) is a 33-residue hypothalamic neuropeptide stabilised by an N-terminal pyroglutamate and two intramolecular disulfide bridges, so it has no plain single-letter sequence. It is studied as an agonist at the orexin OX1 and OX2 receptors in arousal- and feeding-signalling models.

For laboratory research use only. Not for human or veterinary use.

Specifications

Identity
Sequence
not recorded
Molecular formula
C152H243N47O44S4
Molecular weight
3561.1 g/mol
CAS number
205640-90-0
Physical
Form
Lyophilised powder
Appearance
White to off-white powder
Solubility
Soluble in bacteriostatic or sterile water
Storage
Store the lyophilised powder at -20°C, protected from light. Refrigerate reconstituted material at 2 to 8°C and use within its stability window.

Certificate

This compound is not currently stocked. Its certificate of analysis, with the independent HPLC and mass-spectrometry results for the batch, is published here when the first lot is released.

Handling and storage

Reconstitute with bacteriostatic or sterile water. Store the lyophilised powder at -20°C, protected from light; refrigerate reconstituted material at 2 to 8°C. Handle under standard laboratory conditions.

Literature

  • Orexins and orexin receptors: a family of hypothalamic neuropeptides and G protein-coupled receptors that regulate feeding behavior
    Sakurai T, et al. · Cell · 1998

Common questions about Orexin A

What is Orexin A?
Orexin A (hypocretin-1) is a 33-residue hypothalamic neuropeptide stabilised by an N-terminal pyroglutamate and two intramolecular disulfide bridges, so it has no plain single-letter sequence.
How is Orexin A supplied?
Orexin A is supplied as a lyophilised (freeze-dried) powder in 5 mg vials, for laboratory research use only.
How should Orexin A be stored and handled?
Reconstitute with bacteriostatic or sterile water. Store the lyophilised powder at -20°C, protected from light; refrigerate reconstituted material at 2 to 8°C. Handle under standard laboratory conditions.
Is Orexin A for human use?
No. Orexin A is supplied strictly for in vitro laboratory research. It is not for human or animal consumption, and is not a drug, food, or cosmetic.

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Reconstitution

Concentration
2.50 mg/ml
Volume to draw
0.100 ml
On a U-100 syringe
10 units

A measurement aid for laboratory handling. For research use only.

Need the syringe mark, a round-number draw, or a U-40 reading? Open the full calculator with this 5 mg vial loaded.