Citicoline (CDP Choline) — Step-by-Step Protocol from Goods Inward to Issue

Description

Citicoline reaches the store as a nucleotide-type organic compound with a well-defined registry identity. The sequence below runs from the loading bay to the closing entry on the stock card, and each step ends with something written down. Zobacz również ten sam materiał w innej gramaturze: Modafinil (CAS 68693-11-8) — karta charakterystyki.

From goods inward to a released shelf position

1. Inspect the outer pack before unpacking. Crushed corners, damp cardboard or a broken seal go on the delivery note first, because after unpacking the evidence is gone.
2. Match identity against the certificate. CAS registry number 987-78-0, molecular formula C14H26N4O11P2 and molar mass 488.33 g/mol must agree between label, certificate and purchase order.
3. Hold the container in quarantine. Until that check is signed off the material stands in a marked position apart from released stock, so nobody issues it unknowingly.
4. Open a stock card. Receipt date, supplier, batch, certificate reference, net quantity, declared purity, storage range and retest date, entered in one sitting.
5. Assign a permanent shelf position. Gram-scale organic reagents shelved together, away from strong oxidisers, concentrated acids and bases, and away from anything that could spill from above.
6. Keep it dry, closed and dark. The temperature window printed by the supplier governs, and a desiccated secondary box is used from the first opening onwards.
7. Issue by first expired, first out. The mass actually taken and the balance remaining are entered at the weighing station by the person who took it.
8. Return the container at once. Closure tightened, position restored, and a cold-stored batch equilibrated to ambient temperature before the next opening.
9. Reconcile the physical count. A stock-take compares containers and residual masses against the register; a gap is explained in writing, never adjusted away.
10. Close the batch. Consumption, disposal or transfer with the destination named — one final entry, dated and signed, on the card that opened the batch.

Why the order matters

The steps most often skipped are the third and the ninth, and they fail in opposite directions. Skipping quarantine lets unverified material into circulation, where a wrong identity surfaces only after the compound has been weighed into work. Skipping reconciliation lets a small unexplained shortfall grow until nobody can say which batch it came from.

Identity deserves particular care here, because catalogue entries for choline derivatives are easy to confuse. Citicoline — also listed as cytidine 5′-diphosphocholine or CDP choline — is the diphosphate-bridged compound; other choline forms carry different formulas and registry numbers entirely. A synonym on the label is acceptable, a mismatched CAS number is not, and the container stays in quarantine until the supplier resolves the difference in writing.

Transport out of the store

Dispatch repeats intake in reverse: the sealed primary pouch never carries the mechanical load, a rigid cushioned carton does, and the paper naming compound, CAS number, quantity and batch is fixed outside the sealed pack. Regulatory status at the destination is confirmed before handover. Zobacz również odczynnik w opakowaniu gramowym: L-Tyrosine / L-Tyrosine /Tyrosine Purity ≥ 99% 100.

Zobacz też w katalogu

• L-Tyrosine / L-Tyrosine /Tyrosine Purity ≥ 99% 1000mg
• Modafinil (CAS 68693-11-8) — karta charakterystyki, klasyfikacja i war
• Mebicar / Mebikar / Temgicoluril – 30x kapsułki 100mg. Czystość ≥ 99%
• PRL-8-53, 1000mg czystej substancji ≥ 99%.

Piśmiennictwo

Badania na zwierzętach i in vitro indeksowane w bazie PubMed; strona nie zawiera wskazówek dotyczących stosowania u ludzi.

• Fagone P Phosphatidylcholine and the CDP-choline cycle 2013, Biochimica et biophysica acta. PMID 23010477
• Weiss GB Metabolism and actions of CDP-choline as an endogenous compound and administered exogenously as citicoline 1995, Life sciences. PMID 7869846
• Secades JJ Citicoline: pharmacological and clinical review, 2022 update 2022, Revista de neurologia. PMID 36544369
• D'Orlando KJ Citicoline (CDP-choline): mechanisms of action and effects in ischemic brain injury 1995, Neurological research. PMID 7477743

Kwalifikacja odczynnika

Materiału nie wolno stosować u ludzi. Nie przewidziano dla niego zastosowań weterynaryjnych. Jest to wysokiej czystości produkt laboratoryjny do prac badawczych z użyciem HPLC i GC-MS. Nie jest produktem leczniczym ani środkiem spożywczym.