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Levofloxacin impurities and related standards

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

CAS numbers are listed for 30 of 30; 21 entries carry a structure drawing.

Levofloxacin — related standards
CompoundCAS No.Catalogue No.FormulaMW
Levofloxacin Impurity 63 1026952-91-9 RS-L006003 C13H11F2NO4 283.23
Levofloxacin Impurity 37 107359-24-0 RS-L006007 C19H22FN3O4 375.4
Levofloxacin Impurity E 100986-86-5 RS-L006001 C18H20FN3O4 361.37
Levofloxacin Related Compound B(USP) 100986-89-8 RS-L006002 C13H9F2NO4 281.21
Levofloxacin Impurity 15 103995-33-1 RS-L006005 C14H12F4O4 320.24
Levofloxacin Impurity 14 110548-02-2 RS-L006008 C15H15F4NO4 349.28
Levofloxacin Impurity 17 110548-03-3 RS-L006009 C15H14F3NO4 329.28
Levofloxacin Impurity 8 117620-84-5 RS-L006013 C13H10FNO4 263.22
Levofloxacin Impurity D 117620-85-6 RS-L006014 C18H21N3O4 343.38
Levofloxacin EP Impurity C 117678-38-3 RS-L006015 C18H20FN3O5 377.37
Levofloxacin Impurity A 117707-40-1 RS-L006017 C17H18FN3O4 347.34
Levofloxacin Impurity 37 1213269-49-8 RS-L006018 C14H11F2NO4 295.24
Levofloxacin Impurity 24 1329833-82-0 RS-L006019 C23H31N5O4 441.52
Levofloxacin Impurity B(Hydrochloride) 1346603-62-0 RS-L006020 C16H18FN3O4.HCl 335.33
Levofloxacin Impurity 25 138998-47-7 RS-L006021 C14H13F4NO3 319.25
Levofloxacin Impurity 1 151250-76-9 RS-L006023 C16H18FN3O4 335.33
Levofloxacin Impurity 7 1607796-83-7 RS-L006024 C15H14FNO5 307.28
Levofloxacin USP Related Compound C 177472-30-9 RS-L006026 C20H24FN3O4 389.42
Levofloxacin Impurity 5 178912-62-4 RS-L006027 C18H20FN3O4 361.37
Levofloxacin Impurity F 178964-53-9 RS-L006028 C17H20FN3O2 317.36
Levofloxacin Impurity 4 2206135-16-0 RS-L006029 C23H30FN5O3 443.53
Levofloxacin Impurity 73 1430222-73-3 RS-L006022 C16H18FN3O2 303.34
Levofloxacin Impurity 13 1036016-10-0 RS-L006004 C18H21F2N3O4 381.38
Levofloxacin Impurity 11 106939-34-8 RS-L006006 C15H13F2NO4 309.26
Levofloxacin Impurity 9 110548-06-6 RS-L006010 C15H13F2NO4 309.26
Levofloxacin Impurity 10 110548-07-7 RS-L006011 C13H9F2NO4 281.05
Levofloxacin Impurity 26 1117-37-9 RS-L006012 C7H13NO2 143.18
Levofloxacin Impurity 42 117707-39-8 RS-L006016 C17H18FN3O4.HCl 347.35
Levofloxacin Impurity 22 177472-29-6 RS-L006025 C20H25F2N3O4 409.43
Levofloxacin Impurity 5 2206360-62-3 RS-L006030 C13H10FNO5 279.23

Structures

Frequently asked

How many Levofloxacin-related reference standards do you hold?
30 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 30 of them and 21 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Levofloxacin 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 Levofloxacin 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 Levofloxacin 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 [email protected].