FGL

FGL is supplied as a laboratory research reference material for in-vitro and laboratory research use only. This synthetic 15-residue peptide (Glu-Val-Tyr-Val-Val-Ala-Glu-Asn-Gln-Gln-Gly-Lys-Ser-Lys-Ala) corresponds to a sequence derived from the second fibronectin type III module of the neural cell adhesion molecule (NCAM), and is offered as a well-defined synthetic reference standard for comparative analytical work.

Key identifiers for FGL include CAS 868852-04-0, molecular formula C70H116N22O24, and a calculated monoisotopic-consistent average molecular weight of 1665.8 g/mol. The primary structure carries two acidic glutamate residues, two basic lysines, one tyrosine chromophore that supports UV quantitation near 280 nm, and a serine hydroxyl available as a polar handle. With no cysteines and no engineered disulfide constraint, FGL is a linear, non-cyclized sequence, which simplifies mass-spectrometric confirmation and reversed-phase HPLC profiling.

The material is produced by solid-phase peptide synthesis and isolated as a white to off-white lyophilized powder. Purity is specified as not less than 98% by HPLC, with identity, purity, counterion content and residual profile documented on the lot-specific Certificate of Analysis available on request. Typical analytical workflows employed by laboratories characterizing FGL include reversed-phase HPLC (C18, water/acetonitrile with trifluoroacetic acid or formic acid modifier), ESI-MS or MALDI-TOF for molecular-weight confirmation, and orthogonal amino-acid analysis where required.

Handling considerations for laboratory personnel: store the lyophilized powder sealed, protected from light and moisture, and equilibrate sealed vials to ambient temperature prior to opening to limit condensation on the hygroscopic solid. Reconstitution behavior in aqueous buffers reflects the peptide's mixed polar and hydrophobic character; solubility, stock concentration and buffer compatibility should be verified empirically for each analytical protocol.

Published scientific literature has examined FGL in preclinical research; PEPTIDE.Power makes no therapeutic, diagnostic, or efficacy claims regarding this material and provides no administration or dosing guidance. This material is not a drug, supplement, cosmetic, or food, and is not for human or veterinary use, injection, or ingestion. It is intended solely as a synthetic reference substance for in-vitro laboratory investigation by qualified researchers.

Supplied as a lyophilized (freeze-dried) powder in a sealed vial. A research reference material - not a finished product and not a delivery device. Net contents per unit are shown in the product options.

Store the sealed lyophilized powder at -20 C, protected from light and moisture. After reconstitution for laboratory use, keep cold and use promptly. Handle per standard laboratory practice; a Safety Data Sheet (SDS) is available on request.

This material is sold to qualified laboratory and research buyers for lawful research use only. It is not a drug, supplement, cosmetic, or food, and is not for human or veterinary use, injection, or ingestion. By purchasing, you confirm you are 21 or older and will use this material only for lawful laboratory research.