{"id":531,"date":"2022-10-02T10:05:50","date_gmt":"2022-10-02T10:05:50","guid":{"rendered":"https:\/\/antyrad.pl\/sklep\/alpha-gpc-purity-%e2%89%a5-99-weight-1000mg-net\/"},"modified":"2026-08-13T18:23:37","modified_gmt":"2022-10-02T10:05:50","slug":"alpha-gpc","status":"publish","type":"product","link":"https:\/\/antyrad.pl\/en\/sklep\/alpha-gpc\/","title":{"rendered":"Alpha GPC in the reagent store: six questions before shelving"},"content":{"rendered":"\n

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, czysto\u015b\u0107 \u2265 99% waga 1000mg netto.<\/a>.<\/p>\n\n\n\n

What identifies the lot when the trade name changes?<\/h2>\n\n\n\n

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.<\/p>\n\n\n\n

Why is humidity the decisive storage parameter?<\/h2>\n\n\n\n

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.<\/p>\n\n\n\n

How should an opened container be returned to the shelf?<\/h2>\n\n\n\n

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.<\/p>\n\n\n\n

What does classification decide about the shelf?<\/h2>\n\n\n\n

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.<\/p>\n\n\n\n

What must the transport file contain?<\/h2>\n\n\n\n

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.<\/p>\n\n\n\n

Which entries close the stock card?<\/h2>\n\n\n\n

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 Czysto\u015b\u0107 \u2265 99% 1000mg.<\/a>.<\/p>\n\n\n\n