Crisaborole impurities and related standards
28 reference standards related to Crisaborole held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
In this group: 27 impurity reference standards · 1 stable isotope labelled standard. CAS numbers are listed for 28 of 28; 25 entries carry a structure drawing.
| Compound | CAS No. | Catalogue No. | Formula | MW |
|---|---|---|---|---|
| Crisaborole Impurity 80 | 1160182-44-4 | RS-C101001 | C9H9BrO3 | 245.07 |
| Crisaborole Impurity 47 | 1160182-46-6 | RS-C101002 | C14H8BrNO2 | 302.12 |
| Crisaborole Impurity 57 | 1160182-70-6 | RS-C101004 | C14H8BrNO2 | 302.12 |
| Crisaborole Impurity 73 | 1160182-71-7 | RS-C101005 | C14H8BrNO2 | 300.97 |
| Crisaborole Impurity 8 | 1187188-59-5 | RS-C101007 | C14H12BNO4 | 269.06 |
| Crisaborole Impurity 81 | 1217366-74-9 | RS-C101009 | C16H12BrNO3 | 346.18 |
| Crisaborole Impurity 35 | 13321-76-1 | RS-C101011 | C7H6Br2O | 265.93 |
| Crisaborole Impurity 27 | 2141947-89-7 | RS-C101013 | C20H20BNO4 | 349.19 |
| Crisaborole Impurity 74 | 2250222-38-7 | RS-C101014 | C20H22BNO4 | 351.2 |
| Crisaborole Impurity 21 | 2268785-42-6 | RS-C101015 | C14H6D4BNO3 | 255.07 |
| Crisaborole Impurity 29 | 2354382-27-5 | RS-C101016 | C14H8BCl2NO3 | 319.94 |
| Crisaborole Impurity 6 | 2803552-54-5 | RS-C101017 | C14H9NO3 | 239.23 |
| Crisaborole Impurity 5 | 2803552-55-6 | RS-C101018 | C14H11NO3 | 241.24 |
| Crisaborole Impurity 54 | 2844350-51-0 | RS-C101019 | C14H12BNO4 | 269.06 |
| Crisaborole Impurity 77 | 2925547-76-6 | RS-C101020 | C18H19BO4 | 310.15 |
| Crisaborole Impurity 41 | 2988644-41-1 | RS-C101021 | C16H13NO4 | 283.28 |
| Crisaborole Impurity 4 | 888967-63-3 | RS-C101022 | C14H11NO2 | 225.24 |
| Crisaborole Impurity 25 | 906673-30-1 | RS-C101023 | C14H10BNO3 | 251.05 |
| Crisaborole Impurity 61 | 906673-41-4 | RS-C101024 | C14H10BNO3 | 251.05 |
| Crisaborole Impurity 26 | 906673-42-5 | RS-C101025 | C14H10BNO3 | 251.05 |
| Crisaborole Impurity 7 | 906673-43-6 | RS-C101026 | C14H11BO5 | 270.05 |
| Crisaborole Impurity 45 | 906673-54-9 | RS-C101027 | C14H8BrNO2 | 302.12 |
| Crisaborole Impurity 16 | 906673-58-3 | RS-C101028 | C14H10BrNO2 | 304.14 |
| Crisaborole Impurity 17 | 1160182-61-5 | RS-C101003 | C14H10BrNO2 | 304.14 |
| Crisaborole Impurity 30 | 1187187-01-4 | RS-C101006 | C14H14BNO3.HCl | 255.08 |
| Crisaborole Impurity 28 | 1187188-60-8 | RS-C101008 | C14H13BO4 | 256.06 |
| Crisaborole Impurity 36 | 13321-75-0 | RS-C101010 | C7H6Br2O | 265.93 |
| Crisaborole Impurity 34 | 1785498-37-4 | RS-C101012 | C7H6Br2O | 265.93 |
Structures
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Crisaborole Impurity 80
COA per lot -
Crisaborole Impurity 47
COA per lot -
Crisaborole Impurity 57
COA per lot -
Crisaborole Impurity 73
COA per lot -
Crisaborole Impurity 8
COA per lot -
Crisaborole Impurity 81
COA per lot -
Crisaborole Impurity 35
COA per lot -
Crisaborole Impurity 27
COA per lot
Frequently asked
How many Crisaborole-related reference standards do you hold?
28 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 28 of them and 25 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Crisaborole 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 Crisaborole 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 Crisaborole 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.






