Reference
The peptide research glossary.
Plain, characterization-only definitions for every compound, research class, and analytical method in the Lineará formulary. A reference for reading a certificate, understanding a spec, or looking up a term — no claims, just the vocabulary.
Definitions are analytical and characterization-only. No efficacy, dosing, or human-use content.
5
5-Amino-1MQCompound
5-Amino-1MQ is a small-molecule quinolinium derivative, 5-amino-1-methylquinolinium, supplied as the iodide salt, with the molecular formula C10H11IN2 and a molecular weight of 286.12 g/mol.
View monograph →A
ACE-031Compound
A protein (UniProt Q13705) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →AdipotideCompound
A 25-residue synthetic peptide (molecular formula C111H204N36O28S2, CAS 859216-15-2) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →AICARCompound
A synthetic small molecule (molecular formula C9H14N4O5, CAS 2627-69-2) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →AmlexanoxCompound
A synthetic small molecule (molecular formula C16H14N2O4, CAS 68302-57-8) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →AOD-9604Compound
AOD-9604 is a synthetic 16-residue fragment of the C-terminus of human growth hormone, residues 176–191, with the molecular formula C78H123N23O23S2 and a molecular weight of 1815.10 g/mol.
View monograph →ARA-290Compound
ARA-290 is a synthetic 11-residue peptide from the erythropoietin helix-B domain, carrying an N-terminal pyroglutamate.
View monograph →B
B7-33Compound
A 27-residue synthetic peptide (molecular formula C131H229N41O36S, CAS 1818415-56-3) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →BPC-157Compound
BPC-157 is a synthetic 15-residue peptide, sequence GEPPPGKPADDAGLV, derived from a partial sequence identified in gastric juice and produced by solid-phase peptide synthesis.
View monograph →BronchogenCompound
A 4-residue synthetic peptide (molecular formula C18H30N4O9) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →C
CagrilintideCompound
Cagrilintide is a synthetic long-acting amylin analog of 37 residues, carrying a Cys3–Cys8 disulfide bridge, with the molecular formula C194H312N54O59S2 and a molecular weight of 4409.07 g/mol.
View monograph →CartalaxCompound
A 3-residue synthetic peptide (molecular formula C12H19N3O8, CAS 85806-95-7) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →CAS numberMethod / concept
A unique numeric identifier assigned by the Chemical Abstracts Service to reference a chemical substance unambiguously.
Certificate of Analysis (COA)Method / concept
A document reporting the analytical results — identity, purity, method, and dates — for one specific production lot.
ChromatogramMethod / concept
The output trace of an HPLC run; peaks represent the components separated by the method, with the target peptide as the dominant peak.
CJC-1295Compound
CJC-1295 is a synthetic 29-residue analog of growth-hormone-releasing hormone, also known as Modified GRF (1-29), with a molecular weight of 3367.95 g/mol.
View monograph →CJC-1295 DACCompound
An alternate chemical form (molecular formula C165H269N47O46, CAS 446262-90-4) listed as an analytical reference only — distinct from CJC-1295 (no DAC), the form Lineará stocks. Not sold, no certificate of analysis.
View monograph →Cold chainMethod / concept
Temperature-controlled handling and storage that preserves a material's integrity from release to receipt.
CortagenCompound
A 4-residue synthetic peptide (molecular formula C17H26N4O9) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →D
DihexaCompound
A 3-residue synthetic peptide (molecular formula C27H44N4O5, CAS 1401708-83-5) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →DSIPCompound
DSIP is a synthetic nonapeptide, delta sleep-inducing peptide, sequence WAGGDASGE, with the molecular formula C35H48N10O15 and a molecular weight of 848.82 g/mol.
View monograph →E
EpithalonCompound
Epithalon is a synthetic tetrapeptide, Ala-Glu-Asp-Gly, with the molecular formula C14H22N4O9 and a molecular weight of 390.35 g/mol.
View monograph →ESI-MS (mass spectrometry)Method / concept
Electrospray-ionization mass spectrometry; confirms a compound's identity by measuring its molecular mass.
F
Follistatin-344Compound
A 344-residue protein (UniProt P19883) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →FOXO4-DRICompound
A 46-residue synthetic peptide (molecular formula C228H388N86O64) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →G
GHK-CuCompound
GHK-Cu is a copper(II)-binding tripeptide complex — the tripeptide glycyl-L-histidyl-L-lysine coordinated to a copper(II) ion — with the molecular formula C14H24CuN6O4 and a molecular weight of 403.93 g/mol.
View monograph →GHRP-2Compound
A 6-residue synthetic peptide (molecular formula C45H55N9O6, CAS 158861-67-7) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →GHRP-6Compound
A 6-residue synthetic peptide (molecular formula C46H56N12O6, CAS 87616-84-0) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →GlutathioneCompound
Glutathione is a tripeptide, γ-L-glutamyl-L-cysteinylglycine, with the molecular formula C10H17N3O6S and a molecular weight of 307.32 g/mol.
View monograph →GonadorelinCompound
A 10-residue synthetic peptide (molecular formula C55H75N17O13, CAS 33515-09-2) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →H
HexarelinCompound
A 6-residue synthetic peptide (molecular formula C47H58N12O6, CAS 140703-51-1) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →HPLC (RP-HPLC)Method / concept
Reversed-phase high-performance liquid chromatography; the analytical method used to measure peptide purity by separating the target from process-related impurities.
HumaninCompound
A 24-residue synthetic peptide (molecular formula C119H204N34O32S2, CAS 330936-69-1) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →I
IGF-1 LR3Compound
A 83-residue protein (UniProt P05019) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →IpamorelinCompound
Ipamorelin is a synthetic pentapeptide, Aib-His-D-2-Nal-D-Phe-Lys, with the molecular formula C38H49N9O5 and a molecular weight of 711.87 g/mol.
View monograph →K
Karl Fischer titrationMethod / concept
An analytical method for measuring residual water content in a lyophilized material.
Kisspeptin-10Compound
A 10-residue synthetic peptide (molecular formula C63H83N17O14, CAS 374675-21-5) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →KPVCompound
KPV is a synthetic tripeptide, Lys-Pro-Val, corresponding to the C-terminal fragment of α-MSH, with the molecular formula C16H30N4O4 and a molecular weight of 342.44 g/mol.
View monograph →L
LarazotideCompound
A 8-residue synthetic peptide (molecular formula C32H55N9O10, CAS 258818-34-7) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →LivagenCompound
A 4-residue synthetic peptide (molecular formula C18H31N5O9) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →LL-37Compound
A 37-residue synthetic peptide (molecular formula C205H340N60O53, CAS 154947-66-7) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →Lot / batchMethod / concept
A specific production run, tracked by a unique lot number and its own certificate of analysis.
LyophilizationMethod / concept
Freeze-drying; removing water from a frozen solution under vacuum to yield a stable dry powder.
M
Molecular formulaMethod / concept
The count of each atom type in a molecule (for example, C62H98N16O22).
Molecular weightMethod / concept
The mass of one molecule of a compound, reported in daltons (g/mol).
MOTS-cCompound
MOTS-c is a mitochondrial-derived peptide of sixteen residues, with the molecular formula C101H152N28O22S2 and a molecular weight of 2174.62 g/mol.
View monograph →MT-1 (Melanotan 1)Compound
MT-1 (Melanotan 1) is a synthetic 13-residue α-MSH analog with the molecular formula C78H111N21O19 and a molecular weight of 1646.87 g/mol.
View monograph →MT-2 (Melanotan 2)Compound
MT-2 (Melanotan 2) is a synthetic cyclic α-MSH analog of seven residues, with the molecular formula C50H69N15O9 and a molecular weight of 1024.20 g/mol.
View monograph →N
NAD+Compound
NAD+ is β-nicotinamide adenine dinucleotide, a pyridine dinucleotide coenzyme, with the molecular formula C21H27N7O14P2 and a molecular weight of 663.43 g/mol.
View monograph →P
P21Compound
A 6-residue synthetic peptide (molecular formula C27H42N6O8, CAS 1246751-68-7) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →PancragenCompound
A 4-residue synthetic peptide (molecular formula C26H36N6O9) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →PeptideMethod / concept
A short chain of amino acids linked by peptide bonds; shorter than a protein.
PinealonCompound
A 3-residue synthetic peptide (molecular formula C15H26N6O8, CAS 175175-23-2) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →ProstamaxCompound
A 4-residue synthetic peptide (molecular formula C20H33N5O9) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →PT-141Compound
PT-141 is a synthetic cyclic heptapeptide and melanocortin-receptor analog, with the molecular formula C50H68N14O10 and a molecular weight of 1025.18 g/mol.
View monograph →PurityMethod / concept
The proportion of the target peptide relative to process-related impurities, measured by HPLC and reported as a percentage.
R
Reference materialMethod / concept
A characterized substance supplied for use as an analytical or research reference.
A research classification for peptides studied in tissue-characterization and cytoprotection contexts.
Research Use Only (RUO)Method / concept
A designation for materials supplied strictly for laboratory research — not for human or veterinary use, and not for diagnostic or therapeutic purposes.
S
A research classification for peptides studied in secretagogue and regulatory-signaling contexts.
SelankCompound
Selank is a synthetic heptapeptide, sequence TKPRPGP, and an analog of the endogenous peptide tuftsin, with the molecular formula C33H57N11O9 and a molecular weight of 751.89 g/mol.
View monograph →SemaxCompound
Semax is a synthetic heptapeptide, sequence MEHFPGP, related to a fragment of ACTH, with the molecular formula C37H51N9O10S and a molecular weight of 813.93 g/mol.
View monograph →SequenceMethod / concept
The ordered list of amino-acid residues that defines a peptide.
SermorelinCompound
A 29-residue synthetic peptide (molecular formula C149H246N44O42S, CAS 86168-78-7) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →A research classification for peptides studied in signaling and neuromodulation contexts.
SLU-PP-332Compound
A synthetic small molecule (molecular formula C18H14N2O2, CAS 303760-60-3) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →SNAP-8Compound
A 8-residue synthetic peptide (molecular formula C41H70N16O16S, CAS 868844-74-0) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →Solid-phase synthesis (SPPS)Method / concept
A method of building a peptide chain one residue at a time on a solid support.
SS-31Compound
SS-31 is a synthetic mitochondria-targeted tetrapeptide, D-Arg-Dmt-Lys-Phe, with the molecular formula C32H49N9O5 and a molecular weight of 639.80 g/mol.
View monograph →T
TB-500Compound
TB-500 is the full-length 43-residue thymosin β4 protein (INN Timbetasin), supplied as a lyophilized research material.
View monograph →TB-500 Fragment (Ac-LKKTETQ)Compound
An alternate chemical form (molecular formula C38H68N10O14, CAS 885340-08-9) listed as an analytical reference only — distinct from TB-500 (full-length thymosin β4), the form Lineará stocks. Not sold, no certificate of analysis.
View monograph →TesamorelinCompound
Tesamorelin is a 44-residue synthetic analog of growth-hormone-releasing hormone, with the molecular formula C221H366N72O67S and a molecular weight of 5135.86 g/mol.
View monograph →TesofensineCompound
A synthetic small molecule (molecular formula C17H23Cl2NO, CAS 195875-84-4) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →TestagenCompound
A 4-residue synthetic peptide (molecular formula C17H29N5O9, CAS 1026993-38-3) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →Third-party testingMethod / concept
Analytical testing performed by a recognized independent laboratory, separate from the manufacturer.
Thymosin Alpha-1Compound
Thymosin Alpha-1 is a synthetic 28-residue peptide corresponding to thymosin α1, with the molecular formula C129H215N33O55 and a molecular weight of 3108.32 g/mol.
View monograph →ThymulinCompound
A 9-residue synthetic peptide (molecular formula C33H54N12O15, CAS 63958-90-7) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →V
VesugenCompound
A 3-residue synthetic peptide (molecular formula C15H26N4O8) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →VilonCompound
A 2-residue synthetic peptide (molecular formula C11H21N3O5, CAS 45234-02-4) listed as an analytical reference only — not sold, no certificate of analysis.
View monograph →A 28-residue synthetic peptide (molecular formula C147H237N43O43S, CAS 37221-79-7) listed as an analytical reference only — not sold, no certificate of analysis.
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The glossary is the connective tissue of the research library. Pricing and ordering open for verified research professionals; the definitions stay public.