Metabolic & Weight Management

Orexin-B

Last updated 12 August 2026

Evidence on file1 animal study · 4 citations not yet graded

Strongest sourceModulation of electrically evoked hippocampal epileptiform activity by exogenous orexins in the rat CA1 field. (animal study)

Dosing on file unverified

No established human dose

Carried from a source that labels it unverified, and reproduced with that label attached. A record of what is reported, not a recommendation. No citation on this page establishes it.

Literature on file 5

animal in vivo
Modulation of electrically evoked hippocampal epileptiform activity by exogenous orexins in the rat CA1 field. graded on: an animal model — “rat”

Not graded

4 citations whose study design could not be read from the title. Left ungraded rather than guessed at.

Identity

Space-filling 3D model of Orexin-B, carbon grey, nitrogen blue, oxygen red — Built from the SMILES on this record — the atoms, bonds and stereochemistry are exact. The shape is **one computed low-energy pose**, not a measured structure: a flexible peptide in solution has no single conformation. The skeletal formula below claims connectivity and nothing more, which is what we actually know.

2D chemical structure of Orexin-B — Built from the SMILES on this record — the atoms, bonds and stereochemistry are exact. The shape is **one computed low-energy pose**, not a measured structure: a flexible peptide in solution has no single conformation. The skeletal formula below claims connectivity and nothing more, which is what we actually know.

Molecular weight: 2899.3
Molecular formula: C123H212N44O35S
CAS number: 205599-76-4
PubChem CID: 44404987
InChI key: OHOWSYIKESXDMN-WMQZXSDYSA-N
SMILES: CC[C@H](C)[C@@H](C(=O)NCC(=O)N[C@@H](C)C(=O)N[C@@H](C)C(=O)N[C@@H](CC1=CNC=N1)C(=O)N[C@@H](CC(=O)N)C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCN=C(N)N)C(=O)NCC(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CC(C)C)C(=O)NCC(=O)N2CCC[C@H]2C(=O)N3CCC[C@H]3C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N)NC(=O)[C@H](CC(C)C)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@H](CCSC)N
InChI: InChI=1S/C123H212N44O35S/c1-18-63(12)96(164-114(196)80(46-62(10)11)163-119(201)97(67(16)170)165-102(184)69(124)35-41-203-17)118(200)143-50-91(175)146-64(13)99(181)147-65(14)101(183)157-81(47-68-49-136-57-145-68)113(195)162-82(48-90(128)174)105(187)141-52-93(177)150-83(55-168)115(197)148-66(15)100(182)153-74(30-33-88(126)172)108(190)160-79(45-61(8)9)112(194)161-78(44-60(6)7)111(193)155-72(26-21-38-139-123(134)135)106(188)156-75(31-34-89(127)173)109(191)159-77(43-59(4)5)110(192)154-71(25-20-37-138-122(132)133)103(185)140-51-92(176)149-73(29-32-87(125)171)107(189)158-76(42-58(2)3)104(186)144-54-95(179)166-39-23-28-86(166)120(202)167-40-22-27-85(167)117(199)142-53-94(178)151-84(56-169)116(198)152-70(98(129)180)24-19-36-137-121(130)131/h49,57-67,69-86,96-97,168-170H,18-48,50-56,124H2,1-17H3,(H2,125,171)(H2,126,172)(H2,127,173)(H2,128,174)(H2,129,180)(H,136,145)(H,140,185)(H,141,187)(H,142,199)(H,143,200)(H,144,186)(H,146,175)(H,147,181)(H,148,197)(H,149,176)(H,150,177)(H,151,178)(H,152,198)(H,153,182)(H,154,192)(H,155,193)(H,156,188)(H,157,183)(H,158,189)(H,159,191)(H,160,190)(H,161,194)(H,162,195)(H,163,201)(H,164,196)(H,165,184)(H4,130,131,137)(H4,132,133,138)(H4,134,135,139)/t63-,64-,65-,66-,67+,69-,70-,71-,72-,73-,74-,75-,76-,77-,78-,79-,80-,81-,82-,83-,84-,85-,86-,96-,97-/m0/s1

Notes unverified prose

No human dosing studies identified; research only; No human dosing trials; biomarker studies only

Not on file 1

1 of the 8 fields we track hold nothing on this record, and each says why. A blank field is a bug; a named absence is a finding.

amino-acid sequencenothing we hold supplies it

Each field links to every other record missing the same thing. The full ledger holds 521 gaps across 136 records.