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Citric acid monohydrate impurities and related standards

Citric acid monohydrate is held here as a working collection of 10 reference materials across 9 CAS numbers. 8 entries carry a verified structure drawing, a coverage of 80%. 9 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 1 remain tier C and are kept for search coverage. These are commodity chemistry rather than a drug impurity series, which changes what a buyer should check. The identity is usually straightforward; what varies between suppliers is the trace profile and the water content, and both of those show up in a specification rather than on a chromatogram. A specification for material of this kind is only meaningful with the assay basis stated, because the difference between an assay on the dried substance and an assay as is can be several per cent on the same lot. 9 of the 10 entries carry a registered CAS number; the remaining 1 are described by structure and name alone.

Sources: DailyMed (US NLM) - SODIUM CITRATE AND CITRIC ACID (SODIUM CITRATE AND CITRIC ACID MONOHYDRATE) SOLUTION [CARDINAL HEALTH 107, LLC.

9 reference standards related to Citric acid monohydrate held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 4 fine chemicals · 3 pharmaceutical intermediates · 1 general reference standard · 1 chemical reagent. CAS numbers are listed for 9 of 9; 9 entries carry a structure drawing.

On this page

9 reference standards

All entries — structure, identifiers and pack sizes

9 reference standards

Frequently asked

How many citric acid monohydrate-related reference standards do you hold?
9 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 9 of them and 9 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Citric acid monohydrate impurity that is not listed here?
Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.
What documentation is supplied with citric acid monohydrate impurities?
Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.
Do you publish prices or a lead time for citric acid monohydrate impurities?
No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to sales@rssechem.com.