By PathGene Biotech · Technically reviewed by Alex Huang
Citicoline vs Citicoline Sodium: What Bulk Buyers Should Verify
Short answer
Citicoline (CDP-choline) and citicoline sodium should not be treated as interchangeable line items. Before requesting a quote, confirm the chemical name, CAS number, salt or counter-ion form, assay basis, moisture specification, and intended application.
What to compare
| Buyer question | Citicoline | Citicoline sodium |
|---|---|---|
| Identity | Confirm CDP-choline name and CAS on the specification sheet. | Confirm the sodium salt name, CAS, and formula separately. |
| Assay basis | Check whether HPLC is reported on an as-is or dried basis. | Check whether the stated result includes the salt form and how water is handled. |
| Formulation | Review water solubility, hygroscopicity, and target dosage form. | Review ionic strength, pH impact, and compatibility with the formula. |
| Documentation | Request the batch COA, chromatogram, and applicable specification. | Request the same documents for the exact salt form being quoted. |
Why the distinction matters
A different counter-ion changes molecular weight, assay interpretation, and the amount of material required to deliver an equivalent molar quantity. A product name alone is not enough for a regulatory or formulation decision.
Buyer checklist
- Match the product name and CAS across the quote, specification sheet, label, and COA.
- Confirm the HPLC method, reference standard, and assay basis.
- Check moisture, particle size, heavy metals, and microbial limits where relevant.
- Confirm packaging protects the material from moisture during transport and storage.
See the Citicoline product page for the current product identity, specification overview, and batch-document request options.
Frequently Asked Questions
Are citicoline and citicoline sodium the same raw material?+
They should be verified as separate specification items. Confirm the exact chemical form, CAS number, assay basis, and formula before purchasing.
What should be on a citicoline COA?+
At minimum, match identity, assay method and result, moisture, appearance, batch number, test date, and applicable impurity or microbial limits to the agreed specification.
Why does the salt form affect formulation?+
Salt form can change molecular weight, ionic strength, pH behavior, and the mass needed for an equivalent molar amount.
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