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Levonorgestrel impurities and related standards

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

CAS numbers are listed for 16 of 16; 16 entries carry a structure drawing.

Levonorgestrel — related standards
CompoundCAS No.Catalogue No.FormulaMW
Levonorgestrel Impurity 17 178737-52-5 RS-L001013 C21H28O2 312.4
Levonorgestrel Impurity 14 38165-80-9 RS-L001016 C49H72BrN19O9S2 1215.3
Levonorgestrel-Impurity Q 1038-28-4 RS-L001002 C20H30O2 302.45
Levonorgestrel EP Impurity P 100021-05-4 RS-L001001 C21H28O2 312.45
(+/-) Levonorgestrel EP Impurity A 110785-09-6 RS-L001003 C21H26O2 310.43
Levonorgestrel EP Impurity J 1175109-63-3 RS-L001004 C21H26O3 326.43
Levonorgestrel EP Impurity A 1260525-53-8 RS-L001005 C21H26O2 310.43
Levonorgestrel EP Impurity C 1337972-89-0 RS-L001006 C23H28O 320.47
Levonorgestrel EP Impurity V 14009-70-2 RS-L001007 C22H28O2 324.46
Levonorgestrel EP Impurity Q 14507-49-4 RS-L001008 C20H30O2 302.45
Levonorgestrel EP Impurity T 14507-51-8 RS-L001009 C22H30O2 326.47
Levonorgestrel EP Impurity W 155683-59-3 RS-L001010 C21H24O2 308.41
Levonorgestrel EP Impurity O 155683-60-6 RS-L001011 C22H32O3 344.49
Levonorgestrel EP Impurity S 176254-10-7 RS-L001012 C22H30O2 326.47
Levonorgestrel EP Impurity R 2322-77-2 RS-L001014 C20H28O2 300.44
Levonorgestrel EP Impurity D 32419-58-2 RS-L001015 C21H30O 298.47

Structures

Frequently asked

How many Levonorgestrel-related reference standards do you hold?
16 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 16 of them and 16 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Levonorgestrel 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 Levonorgestrel 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 Levonorgestrel 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.