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Chlorophyll impurities and related standards

Chlorophyll is held here as a working collection of 23 reference materials across 15 CAS numbers. Within the range, numbered impurities go up to 11. 12 of the entries are impurity-type materials of the parent, 2 are salt or counter-ion variants. 15 entries carry a verified structure drawing, a coverage of 65%. 15 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 8 remain tier C and are kept for search coverage. Relative response factors are what decide whether a percentage on a chromatogram means anything. Impurities that lack a chromophore, or whose ultraviolet maximum sits away from the detection wavelength used for the parent, under-respond by a factor that has to be established with a solution of the standard itself rather than assumed. Where a letter exists in a monograph but not in a supplier catalogue, that gap is what stops a validation study, and it is worth asking for the letter rather than for a percentage.

Sources: DailyMed (US NLM) - NATUROPATHICA CHLOROPHYLL AND SALICYLIC ACID SPOT TREATMENT (SALICYLIC ACID) GEL [NATUROPATHICA HOLISTIC HEALT.

15 reference standards related to Chlorophyll held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 6 general reference standards · 5 fine chemicals · 3 impurity reference standards · 1 chemical reagent. CAS numbers are listed for 15 of 15; 15 entries carry a structure drawing.

On this page

15 reference standards

All entries — structure, identifiers and pack sizes

15 reference standards

Frequently asked

How many Chlorophyll-related reference standards do you hold?
15 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 15 of them and 15 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Chlorophyll 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 Chlorophyll 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 Chlorophyll 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.