Apremilast impurities and related standards
38 reference standards related to Apremilast held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
In this group: 36 impurity reference standards · 1 stable isotope labelled standard · 1 nitrosamine standard. CAS numbers are listed for 38 of 38; 34 entries carry a structure drawing.
| Compound | CAS No. | Catalogue No. | Formula | MW |
|---|---|---|---|---|
| Apremilast Impurity 53 | 1131-52-8 | RS-A048002 | C10H12O3 | 180.2 |
| Apremilast Impurity 52 | 120-25-2 | RS-A048005 | C10H12O3 | 180.2 |
| Apremilast Impurity M | 1384439-79-5 | RS-A048008 | C19H18N2O7S | 418.42 |
| Apremilast Impurity QJ | 1384441-38-6 | RS-A048009 | C21H22N2O7S | 446.47 |
| Apremilast Impurity K | 1384814-94-1 | RS-A048010 | C22H24N2O8S | 476.5 |
| Apremilast Impurity QY | 1384967-20-7 | RS-A048011 | C20H20N2O7S | 432.45 |
| Apremilast Impurity 40 | 1450657-31-4 | RS-A048012 | C12H17NO4S | 271.33 |
| Apremilast Impurity 36 | 15371-06-9 | RS-A048013 | C10H9NO5 | 223.18 |
| Apremilast Impurity 60 | 17345-61-8 | RS-A048014 | C7H5NO2 | 135.12 |
| Apremilast Impurity TTN | 1802246-60-1 | RS-A048015 | C30H27N3O9S | 605.62 |
| Apremilast Impurity TNA | 1809170-71-5 | RS-A048016 | C22H26N2O8S | 478.52 |
| Apremilast Impurity 44 | 1822756-03-5 | RS-A048017 | C10H11NO4 | 209.07 |
| Apremilast Impurity 63 | 1831833-38-5 | RS-A048018 | C12H16O4S | 256.32 |
| Apremilast Impurity 47 | 200710-04-9 | RS-A048019 | C11H13NO4 | 223.08 |
| Apremilast Impurity 23 | 202262-76-8 | RS-A048020 | C8H7NO5 | 197.14 |
| Apremilast Impurity 59 | 2024-83-1 | RS-A048021 | C9H9NO2 | 163.17 |
| Apremilast Impurity FA | 2077897-94-8 | RS-A048022 | C21H22N2O7S | 446.47 |
| Apremilast Impurity 43 | 208774-55-4 | RS-A048023 | C10H11NO4 | 209.07 |
| Apremilast Impurity TNB | 2096492-41-8 | RS-A048025 | C22H26N2O8S | 478.52 |
| Apremilast Impurity OH | 2096492-44-1 | RS-A048026 | C22H24N2O8S | 476.5 |
| Apremilast Impurity 20 | 2201974-01-6 | RS-A048027 | C22H24N2O7S | 460.5 |
| Apremilast Impurity 25 | 247569-89-7 | RS-A048028 | C10H13NO3 | 195.22 |
| Apremilast Impurity 19 | 2487573-03-3 | RS-A048029 | C22H24N2O7S | 460.5 |
| Apremilast Impurity 35 | 253168-94-4 | RS-A048030 | C12H19NO4S | 273.35 |
| Apremilast Impurity 26 | 2733250-84-3 | RS-A048031 | C13H21NO5S | 303.37 |
| Apremilast Impurity 58 | 60758-87-4 | RS-A048032 | C11H13NO2 | 191.23 |
| Apremilast Impurity 45 | 62351-80-8 | RS-A048033 | C12H15NO4 | 237.1 |
| Apremilast Impurity 37 | 6296-53-3 | RS-A048034 | C10H7NO4 | 205.17 |
| Apremilast Impurity AND | 635705-72-5 | RS-A048035 | C20H22N2O6S | 418.46 |
| Apremilast Impurity 57 | 81259-56-5 | RS-A048037 | C10H11NO2 | 177.2 |
| Apremilast Impurity A | 885268-06-4 | RS-A048038 | C12H19NO4S | 273.35 |
| Apremilast Impurity 74 | 113579-20-7 | RS-A048003 | C9H9NO4 | 195.17 |
| Apremilast Impurity 77 | 1188-21-2 | RS-A048004 | C8H15NO3 | 173.21 |
| (S)-Apremilast D5 | 1258597-47-5 | RS-A048007 | C22H19D5N2O7S | 465.53 |
| Apremilast Impurity 22 | 106860-70-2 | RS-A048001 | C8H5NO5 | 195.13 |
| Apremilast Impurity B | 1255909-25-1 | RS-A048006 | C11H17NO4S | 259.32 |
| Apremilast Impurity 4 | 2095036-40-9 | RS-A048024 | C20H20N2O8S | 448.45 |
| Apremilast Impurity 160 | 7652-98-4 | RS-A048036 | C12H16O3 | 208.26 |
Structures
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Apremilast Impurity 53
COA per lot -
Apremilast Impurity 52
COA per lot -
Apremilast Impurity M
COA per lot -
Apremilast Impurity QJ
COA per lot -
Apremilast Impurity K
COA per lot -
Apremilast Impurity QY
COA per lot -
Apremilast Impurity 40
COA per lot -
Apremilast Impurity 36
COA per lot
Frequently asked
How many Apremilast-related reference standards do you hold?
38 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 38 of them and 34 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply an Apremilast 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 Apremilast 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 Apremilast 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].