Azilsartan impurities and related standards
49 reference standards related to Azilsartan held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
In this group: 47 impurity reference standards · 1 stable isotope labelled standard · 1 nitrosamine standard. CAS numbers are listed for 49 of 49; 46 entries carry a structure drawing.
| Compound | CAS No. | Catalogue No. | Formula | MW |
|---|---|---|---|---|
| Azilsartan Impurity 43 | 1310410-33-3 | RS-A100001 | C5H4O4 | 128.08 |
| Azilsartan impurity W | 1348337-81-4 | RS-A100002 | C24H18N4O4 | 426.42 |
| Azilsartan impurity Z | 136285-65-9 | RS-A100003 | C14H18N2O6 | 310.3 |
| Azilsartan Impurity 116 | 136285-68-2 | RS-A100004 | C28H27N3O6 | 501.53 |
| Azilsartan Impurity E | 136285-69-3 | RS-A100005 | C23H21N3O2 | 371.43 |
| Azilsartan Impurity 134 | 139481-28-0 | RS-A100006 | C22H17N3O4 | 387.39 |
| Azilsartan impurity I | 139481-33-7 | RS-A100007 | C23H17N3O3 | 383.4 |
| Azilsartan impurity R | 139481-44-0 | RS-A100008 | C25H21N3O3 | 411.45 |
| Azilsartan Impurity 151 | 139482-04-5 | RS-A100009 | C24H20N2O5 | 416.43 |
| Azilsartan Impurity 109 | 1397836-41-7 | RS-A100010 | C26H26N4O4 | 458.51 |
| Azilsartan impurity C | 1397836-49-5 | RS-A100011 | C24H22N4O4 | 430.46 |
| Azilsartan impurity Y | 1403474-70-3 | RS-A100012 | C27H24N4O5 | 484.5 |
| Azilsartan Impurity 27 | 1403474-75-8 | RS-A100013 | C29H30N4O6 | 530.57 |
| Azilsartan impurity J | 1403474-78-1 | RS-A100015 | C24H18N4O5 | 442.42 |
| Azilsartan Impurity 105 | 1417576-01-2 | RS-A100017 | C32H28N4O8 | 596.59 |
| Azilsartan Impurity K | 1442400-65-8 | RS-A100019 | C24H22N4O3 | 414.46 |
| Azilsartan impurity T | 1442400-68-1 | RS-A100020 | C23H16N4O5 | 428.4 |
| Azilsartan Impurity 140 | 147403-35-8 | RS-A100021 | C24H18N4O5 | 442.42 |
| Azilsartan impurity U | 147403-52-9 | RS-A100022 | C26H22N4O5 | 470.48 |
| Azilsartan impurity A | 147404-76-0 | RS-A100023 | C25H23N3O4 | 429.47 |
| Azilsartan impurity H | 1499167-72-4 | RS-A100024 | C23H20N4O4 | 416.43 |
| Azilsartan impurity X | 1586011-04-2 | RS-A100027 | C26H25N3O4 | 443.49 |
| Azilsartan impurity Q | 1604812-35-2 | RS-A100028 | C35H28N4O11 | 680.62 |
| Azilsartan Impurity 147 | 1613135-56-0 | RS-A100029 | C29H28N4O5 | 512.56 |
| Azilsartan Impurity 100 | 16339-04-1 | RS-A100030 | C5H12N2O | 116.16 |
| Azilsartan impurity O | 1675221-59-6 | RS-A100031 | C25H24N2O5 | 432.47 |
| Azilsartan impurity B | 1696392-11-6 | RS-A100032 | C24H21N3O4 | 415.44 |
| Azilsartan impurity P | 1696392-12-7 | RS-A100033 | C29H25N3O7 | 527.52 |
| Azilsartan Impurity 103 | 17829-05-9 | RS-A100034 | C2D6N2O | 80.12 |
| Azilsartan impurity D | 1821386-21-3 | RS-A100035 | C22H18N4O4 | 402.4 |
| Azilsartan impurity F | 1863930-34-0 | RS-A100037 | C23H23N3O3 | 389.45 |
| Azilsartan Impurity 137 | 2117636-55-0 | RS-A100038 | C49H38N8O7 | 850.88 |
| Azilsartan Impurity N | 2171316-29-1 | RS-A100039 | C23H19N3O4 | 401.41 |
| Azilsartan Impurity M | 2244031-86-3 | RS-A100040 | C22H17N3O4 | 387.39 |
| Azilsartan Impurity 150 | 2248319-77-7 | RS-A100041 | C12H14N2O6 | 282.25 |
| Azilsartan Impurity 146 | 2922828-23-5 | RS-A100042 | C30H24N4O8 | 568.53 |
| Azilsartan Impurity U-4 | 3031851-96-1 | RS-A100043 | C29H26N4O7 | 542.54 |
| Azilsartan Impurity 106 | 30533-08-5 | RS-A100044 | C4H10N2O | 102.13 |
| Azilsartan Impurity 101 | 601-77-4 | RS-A100045 | C6H14N2O | 130.19 |
| Azilsartan Impurity 102 | 61445-55-4 | RS-A100046 | C5H10N2O3 | 146.14 |
| Azilsartan Impurity L | 632322-61-3 | RS-A100047 | C24H19N3O3 | 397.43 |
| Azilsartan Impurity 107 | 91526-16-8 | RS-A100048 | C12H12O6S | 284.29 |
| Azilsartan Impurity 135 | 949895-84-5 | RS-A100049 | C11H12O6S | 272.27 |
| Azilsartan Impurity 7 | 1403474-76-9 | RS-A100014 | C25H20N4O5 | 456.45 |
| Azilsartan Impurity 28 | 1514933-24-4 | RS-A100026 | C27H26N4O6 | 502.53 |
| Azilsartan Impurity 5 | 1857365-17-3 | RS-A100036 | C24H20N4O3 | 412.45 |
| Azilsartan Impurity 112 | 1417576-00-1 | RS-A100016 | C28H20N4O8 | 540.48 |
| Azilsartan Impurity 104 | 1417576-02-3 | RS-A100018 | C55H42N8O13 | 1022.97 |
| Azilsartan Impurity 141 | 1514933-19-7 | RS-A100025 | C33H28N6O8 | 636.61 |
Structures
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Azilsartan Impurity 43
COA per lot -
Azilsartan impurity W
COA per lot -
Azilsartan impurity Z
COA per lot -
Azilsartan Impurity 116
COA per lot -
Azilsartan Impurity E
COA per lot -
Azilsartan Impurity 134
COA per lot -
Azilsartan impurity I
COA per lot -
Azilsartan impurity R
COA per lot
Frequently asked
How many Azilsartan-related reference standards do you hold?
49 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 49 of them and 46 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply an Azilsartan 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 Azilsartan 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 Azilsartan 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].







