Information for institutional quotation
Orexin B: price, documentation and dispatch in Colombia
Orexin B appears at Péptidos Colombia as laboratory material for research, within the experimental neuromodulation thematic group. Technically it is a linear 28-amino-acid neuropeptide, also called hypocretin-2, and its closest relative in the catalog is Orexin A (hypocretin-1). There are two presentations, 5 and 10 mg, with different reference prices. This page develops that classification, the group of nine references it belongs to, how to read its two presentations, and which document backs each lot.
Presentations and visible prices
| Presentation | Code | Reference price |
|---|---|---|
| 5mg | * | US$261 |
| 10mg | * | US$518 |
The price above is the public value per vial. Availability and batch documentation are confirmed before the quotation is accepted.
Orexin B: a linear 28-amino-acid neuropeptide
The catalog classifies Orexin B as a linear 28-amino-acid neuropeptide, also known as hypocretin-2. It is a structural classification: chain, length, and alternative name verified by the site, without this page describing any neuronal mechanism or associated effect.
The amino-acid sequence, the CAS number, and a purity figure of its own for Orexin B are not filled in here. When a laboratory file needs those fields, the only valid source is the certificate of analysis of the delivered lot.
Its place in the experimental neuromodulation group
The site's curated category groups Orexin B together with Cerebrolysin, DSIP, Dermorphin, Orexin A, P21 (P021), PE-22-28, Selank, and Semax: nine references the catalog studies in the context of neuronal signaling, each with a distinct structural classification. Most, like Orexin B, are synthetic peptides; Cerebrolysin is the group's declared exception, described as a low-molecular-weight peptide hydrolysate of porcine origin, not as a single peptide of defined sequence.
Within that group, the reference closest to Orexin B by classification is Orexin A: the catalog's other hypocretin. Both belong to the same family of related neuropeptides, though with a different sequence length and alternative name.
Two presentations, two reference prices
Orexin B is offered in 5 mg (US$261) and in 10 mg (US$518). Since both are declared by mass, both arrive as lyophilized powder in their vial. The institutional quote must state which of the two is requested, with its own reference code.
Compared with Orexin A, which is offered in a single 10 mg presentation, Orexin B offers an additional 5 mg option for an institution seeking to commit less mass in a first request, though both remain distinct references with their own code and their own lot certificate.
Orexin B versus Orexin A: the catalog's two hypocretins
Orexin A and Orexin B are, according to their own classification, the catalog's two hypocretins: Orexin A is a 33-amino-acid neuropeptide (hypocretin-1) and Orexin B a 28-amino-acid one (hypocretin-2). Each keeps its own current price in its respective page's commercial block.
The comparison above stays within the structural classification and sequence length stated on each page. Neither page attributes a neuronal effect or a use indication: both references are offered only as laboratory research material.
Orexin B's COA: Janoshik Analytical, HPLC, and identity by MS
The certificate of analysis (COA) for each lot of Orexin B is signed by Janoshik Analytical, with purity measured by HPLC and identity confirmed by mass spectrometry (MS). This page does not advance a purity percentage, because that number belongs to the specific lot's report, not to the reference in the abstract.
That COA is handled on request and subject to documentary availability. Upon receiving the material, it helps to check the reference name, the presentation — 5 or 10 mg — and the lot identifier against what the document states.
Shipping to Bogotá, storage, and payment coordination
Orexin B is stored according to what the lot's documentation indicates; if it specifies 2–8 °C and protection from light, those conditions must be in place before shipping. Rates for shipping to Bogotá and to the rest of the country are shown on the site's shipping information, with delivery times confirmed at the time of quote. Outside Colombia, this reference ships to 5 countries (Costa Rica, Ecuador, United States, Mexico and Puerto Rico), from US$57; the rate for each country is listed on the site's international shipping page.
Purchasing Orexin B moves in steps: registering the request, written confirmation of the quote with presentation, price, and shipping, and coordinating payment at the end through the method defined in that document. Keeping the quote, the payment receipt, the shipping confirmation, and the lot certificate together makes any later review easier.
Frequently asked questions about Orexin B
What is Orexin B according to its catalog classification?
A linear 28-amino-acid neuropeptide, also called hypocretin-2. It is, along with Orexin A, one of the catalog's two hypocretins.
What is the price of Orexin B's presentations?
US$261 for 5 mg and US$518 for 10 mg. These are the values in force at the time of this writing; the page's commercial block always shows the current value.
Who issues Orexin B's certificate of analysis?
Janoshik Analytical, per lot, with purity reported by HPLC and identity confirmed by mass spectrometry (MS). It is handled on request and subject to documentary availability.
How is this reference stored?
According to the documentation applicable to the lot. If it specifies 2–8 °C and protection from light, those conditions are built into the custody record before shipping.
How much does shipping cost?
Rates for Bogotá and for the rest of the country are shown on the site's shipping information. Time is confirmed at the time of quote. Outside Colombia, this reference ships to 5 countries (Costa Rica, Ecuador, United States, Mexico and Puerto Rico), from US$57; the rate for each country is listed on the site's international shipping page.
What technical difference is there between Orexin B and Orexin A?
Orexin B is a linear 28-amino-acid neuropeptide (hypocretin-2); Orexin A is a 33-amino-acid neuropeptide (hypocretin-1). The comparison is limited to their structural classification and sequence length.