Alpha GPC in the reagent store: six questions before shelving

Description

Alpha GPC, catalogued under CAS 28319-77-9 with the formula C8H20NO6P and a molar mass of 257.22 g/mol, is a phosphocholine derivative that behaves in the store quite unlike a dry crystalline powder. The questions below cover what a reagent store has to settle before the container reaches a shelf. See also our catalogue listing: Alfa GPC, czystość ≥ 99% waga 1000mg netto..

What identifies the lot when the trade name changes?

Only the registry number does. The same material appears in catalogues as choline alfoscerate, L-alpha-glycerylphosphorylcholine or choline glycerophosphate, and all of those designations must resolve to CAS 28319-77-9 on a single stock card. Names printed by distributors are treated as commentary, not as identity.

Why is humidity the decisive storage parameter?

Supplier documentation describes the material as strongly hygroscopic, which means an open container gains water from room air. Absorbed moisture changes the net mass on the label and turns a free-flowing material into a sticky mass that is hard to weigh reproducibly. Storage therefore aims at a dry, closed environment with the exact limits copied from the lot specification.

How should an opened container be returned to the shelf?

It is closed at the balance, not on the way back to the cabinet. Where the specification calls for it, the container returns to a desiccated enclosure, and the date of opening is written on the label so the next user knows how long the material has been in circulation. A working portion is transferred once and labelled with the parent lot number.

What does classification decide about the shelf?

The classification section of the safety data sheet assigns the compatibility group, and the group decides the neighbours on the shelf. A neutral organophosphorus ester stands apart from oxidising agents, strong acids and flammable liquids. The group is written on the shelf label so that segregation survives a change of storekeeper.

What must the transport file contain?

A copy of the certificate of analysis, a copy of the safety data sheet and the transport note. The primary container travels inside a rigid outer box with absorbent filler, and the outer marking follows the classification rather than the marketing description. On arrival the receiving store repeats the whole goods-in check instead of trusting the sender.

Which entries close the stock card?

The card closes with a final movement: transfer to another store, disposal under a waste protocol, or exhaustion of the container. Until then it records every opening, every mass withdrawn and every relocation. See also our laboratory reagent: VIAGRA / Tadalafil Czystość ≥ 99% 1000mg..

• Registry number 28319-77-9 as the single point of identity.
• Dry, closed storage with limits taken from the lot specification.
• Segregation group written on the shelf label, not only in the register.
• Complete transport file accompanying each consignment.
• Stock card opened at acceptance and closed at the final movement.

See also

• VIAGRA / Tadalafil Czystość ≥ 99% 1000mg.
• Alfa GPC, czystość ≥ 99% waga 1000mg netto.
• Bromantan/Ladasten/Bromantane 1000mg, 99% zawartości Bromantanu w opak
• Oxiracetam / Oksiracetam, czystość ≥ 99%, 1000mg

Indexed publications

Animal and in vitro studies indexed in PubMed; no human-use guidance is provided here.

• Kolykhalov IV [Clinical and immunological effects of choline alfoscerate in the treatment of amnestic type Mild Cognitive Impairment] 2022, Zhurnal nevrologii i psikhiatrii imeni S.S. . PMID 36412158
• Lee SH Late treatment with choline alfoscerate (l-alpha glycerylphosphorylcholine, α-GPC) increases hippocampal neurogenesis and provides protection against seizure-induced neuronal death and cognitive impairment 2017, Brain research. PMID 27765578
• Sun L Validated quantitative (31)P NMR spectroscopy for positional isomeric impurity determination in L-α-glycerylphosphorylcholine (L-α-GPC) 2022, Journal of pharmaceutical and biomedical ana. PMID 36179504
• Lee HJ Potential Risk of Choline Alfoscerate on Isoflurane-Induced Toxicity in Primary Human Astrocytes 2024, Journal of Korean Neurosurgical Society. PMID 37859347

Reagent classification

The material must not be used in humans. No veterinary applications are provided for. This is a high-purity laboratory reagent intended for analytical work by HPLC and GC-MS. It is neither a medicinal product nor a foodstuff.