Collection: Impurity Standards
QuantiMol impurity standards include related compounds, degradation products, process impurities, isomers, residuals, and pharmaceutical impurity materials. These products support analytical research, method validation, impurity profiling, and quality control studies.
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Sirolimus isomer C [CAS 150821-39-9]
CAS: 150821-39-9 | SKU: QM-0054625 | Size: 1 Each Price on request -
Sildenafil impurity 2 (Standard) [CAS 268204-00-8]
CAS: 268204-00-8 | SKU: QM-0050471 | Size: 1 Each Price on request -
Sildenafil impurity 2 [CAS 268204-00-8]
CAS: 268204-00-8 | SKU: QM-0050470 | Size: 1 Each Price on request -
SIMA phosphoramidite, 6-isomer [CAS 1411797-05-1]
CAS: 1411797-05-1 | SKU: QM-0020343 | Size: 1 Each Price on request -
Sacubitrilat impurity 34 (Standard) [CAS 149709-58-0]
CAS: 149709-58-0 | SKU: QM-0017799 | Size: 1 Each Price on request -
Sacubitrilat impurity 34 [CAS 149709-58-0]
CAS: 149709-58-0 | SKU: QM-0017798-01 | Size: 100 mg£244.40 GBP -
SHP2-D26 isomer-1 [CAS 2740582-16-3]
CAS: 2740582-16-3 | SKU: QM-0148678-01 | Size: 1 mg£865.26 GBP -
SCH900776 (S-isomer) [CAS 891494-64-7]
CAS: 891494-64-7 | SKU: QM-0151675-01 | Size: 5 mg£215.24 GBP -
SAR107375E Impurity 14-d8
SKU: QM-0154001 | Size: 1 Each Price on request -
SAR107375E impurity 13-d8
SKU: QM-0154000 | Size: 1 Each Price on request -
ROX azide, 5-isomer [CAS 2628213-67-0]
CAS: 2628213-67-0 | SKU: QM-0054825 | Size: 1 Each Price on request -
Ropivacaine impurity 1 (hydrochloride) (Standard) [CAS 112773-90-7]
CAS: 112773-90-7 | SKU: QM-0049879 | Size: 1 Each Price on request -
Ropivacaine impurity 1 (hydrochloride) [CAS 112773-90-7]
CAS: 112773-90-7 | SKU: QM-0049878-01 | Size: 100 mg£50.37 GBP -
Rivaroxaban impurity 1 (Standard) [CAS 89281-29-8]
CAS: 89281-29-8 | SKU: QM-0049840 | Size: 1 Each Price on request -
Rivaroxaban impurity 1 [CAS 89281-29-8]
CAS: 89281-29-8 | SKU: QM-0049839-01 | Size: 100 mg£52.44 GBP -
Rivaroxaban impurity 9 [CAS 88777-57-5]
CAS: 88777-57-5 | SKU: QM-0049784-01 | Size: 100 mg£232.25 GBP -
Rivaroxaban impurity 8 (Standard) [CAS 1365267-36-2]
CAS: 1365267-36-2 | SKU: QM-0021326-01 | Size: 5 mg£991.63 GBP -
Rivaroxaban impurity 8 [CAS 1365267-36-2]
CAS: 1365267-36-2 | SKU: QM-0021325-01 | Size: 5 mg£520.20 GBP -
Rivaroxaban impurity 7 (Standard) [CAS 1429334-00-8]
CAS: 1429334-00-8 | SKU: QM-0021311-01 | Size: 1 mg£388.99 GBP -
Rivaroxaban impurity 7 [CAS 1429334-00-8]
CAS: 1429334-00-8 | SKU: QM-0021310-01 | Size: 5 mg£482.54 GBP -
Rivaroxaban impurity 3 (Standard) [CAS 1365267-35-1]
CAS: 1365267-35-1 | SKU: QM-0021309-01 | Size: 1 mg£325.81 GBP -
Rivaroxaban impurity 3 [CAS 1365267-35-1]
CAS: 1365267-35-1 | SKU: QM-0021308-01 | Size: 5 mg£489.83 GBP -
ROX alkyne, 6-isomer [CAS 2097422-22-3]
CAS: 2097422-22-3 | SKU: QM-0020347 | Size: 1 Each Price on request -
ROX azide, 6-isomer [CAS 1422178-12-8]
CAS: 1422178-12-8 | SKU: QM-0020344 | Size: 1 Each Price on request -
Rivaroxaban impurity 68 (Standard) [CAS 845729-41-1]
CAS: 845729-41-1 | SKU: QM-0017577-01 | Size: 5 mg£78.82 GBP -
Rivaroxaban impurity 68 [CAS 845729-41-1]
CAS: 845729-41-1 | SKU: QM-0017576-01 | Size: 100 mg£238.32 GBP -
Ruxolitinib impurity-1 [CAS 952518-97-7]
CAS: 952518-97-7 | SKU: QM-0201136-01 | Size: 25 mg£56.58 GBP -
Rivastigmine carbamate impurity [CAS 1346242-31-6]
CAS: 1346242-31-6 | SKU: QM-0144549-01 | Size: 25 mg£106.00 GBP -
Rivaroxaban EP Impurity I [CAS 1151893-81-0]
CAS: 1151893-81-0 | SKU: QM-0161590-01 | Size: 5 mg£63.82 GBP -
Ribose-5-phosphate isomerase [CAS 9023-83-0]
CAS: 9023-83-0 | SKU: QM-0171409-01 | Size: 1 KU Price on request -
Rosuvastatin impurity-1
SKU: QM-0153692 | Size: 1 Each Price on request -
ROX NHS ester, 6-isomer [CAS 117491-83-5]
CAS: 117491-83-5 | SKU: QM-0134381 | Size: 1 Each Price on request -
Roflumilast Impurity E [CAS 1391052-76-8]
CAS: 1391052-76-8 | SKU: QM-0000094-01 | Size: 5 mg£78.82 GBP -
Roflumilast Impurity E (Standard) [CAS 1391052-76-8]
CAS: 1391052-76-8 | SKU: QM-0079530 | Size: 1 Each Price on request -
Rebamipide impurity 3 (Standard) [CAS 90098-06-9]
CAS: 90098-06-9 | SKU: QM-0056151 | Size: 1 Each Price on request -
Rebamipide impurity 3 [CAS 90098-06-9]
CAS: 90098-06-9 | SKU: QM-0056150-01 | Size: 50 mg£63.82 GBP -
Rebamipide impurity 1 (Standard) [CAS 90098-05-8]
CAS: 90098-05-8 | SKU: QM-0056149-01 | Size: 10 mg£69.50 GBP -
Rebamipide impurity 1 [CAS 90098-05-8]
CAS: 90098-05-8 | SKU: QM-0056148-01 | Size: 50 mg£65.89 GBP -
Revefenacin impurity 4 [CAS 1289178-27-3]
CAS: 1289178-27-3 | SKU: QM-0054852 | Size: 1 Each Price on request -
R6G azide, 5-isomer [CAS 2135330-71-9]
CAS: 2135330-71-9 | SKU: QM-0054824 | Size: 1 Each Price on request -
Rebamipide impurity 13 [CAS 4876-17-9]
CAS: 4876-17-9 | SKU: QM-0051405-01 | Size: 5 mg£89.13 GBP -
Remifentanil impurity 8-d5
SKU: QM-0050958 | Size: 1 Each Price on request -
Remimazolam impurity 4 (Standard) [CAS 1009092-91-4]
CAS: 1009092-91-4 | SKU: QM-0049564-01 | Size: 5 mg£420.57 GBP -
Remimazolam impurity 4 [CAS 1009092-91-4]
CAS: 1009092-91-4 | SKU: QM-0049563 | Size: 1 Each Price on request -
Regorafenib impurity 8 [CAS 1333390-56-9]
CAS: 1333390-56-9 | SKU: QM-0021385-01 | Size: 1 mg£1,104.62 GBP -
Regorafenib impurity 1 [CAS 2188236-16-8]
CAS: 2188236-16-8 | SKU: QM-0021382-01 | Size: 1 mg£1,104.62 GBP -
Rametimide impurity 16 [CAS 1365920-11-1]
CAS: 1365920-11-1 | SKU: QM-0021367-01 | Size: 25 mg£59.16 GBP -
Ramelteon impurity 10 (Standard) [CAS 196597-17-8]
CAS: 196597-17-8 | SKU: QM-0017546-01 | Size: 5 mg£740.12 GBP -
Ramelteon impurity 10 [CAS 196597-17-8]
CAS: 196597-17-8 | SKU: QM-0017545-01 | Size: 5 mg£325.81 GBP -
R6G phosphoramidite, 6-isomer [CAS 1355330-47-0]
CAS: 1355330-47-0 | SKU: QM-0010408 | Size: 1 Each Price on request -
Remdesivir O-desphosphate acetonide impurity (Standard) [CAS 1191237-80-5]
CAS: 1191237-80-5 | SKU: QM-0006353-01 | Size: 10 mg£63.29 GBP -
R110 azide, 6-isomer [CAS 1622395-29-2]
CAS: 1622395-29-2 | SKU: QM-0161002-01 | Size: 1 mg£250.47 GBP -
Remdesivir O-desphosphate acetonide impurity [CAS 1191237-80-5]
CAS: 1191237-80-5 | SKU: QM-0145663-01 | Size: 100 mg£78.82 GBP -
Rel-Biperiden EP impurity B-d5
SKU: QM-0143819-01 | Size: 5 mg Price on request -
Rel-Biperiden EP impurity A-d5
SKU: QM-0143818-01 | Size: 5 mg Price on request -
Remdesivir impurity 9-d4
SKU: QM-0057445 | Size: 1 mg Price on request -
Propofol impurity 1 [CAS 35946-91-9]
CAS: 35946-91-9 | SKU: QM-0050006-01 | Size: 100 mg£140.88 GBP -
Propofol impurity 3 (Standard) [CAS 74663-48-2]
CAS: 74663-48-2 | SKU: QM-0049901 | Size: 1 Each Price on request -
Propofol impurity 3 [CAS 74663-48-2]
CAS: 74663-48-2 | SKU: QM-0049900-01 | Size: 50 mg£126.25 GBP -
Posaconazole impurity 4 [CAS 160709-02-4]
CAS: 160709-02-4 | SKU: QM-0021410-01 | Size: 100 mg£36.91 GBP -
Protein Disulfide Isomerase, Human
SKU: QM-0020955 | Size: 1 Each Price on request -
Pralatrexate impurity 1 (Standard) [CAS 146464-93-9]
CAS: 146464-93-9 | SKU: QM-0017653 | Size: 1 Each Price on request -
Pralatrexate impurity 1 [CAS 146464-93-9]
CAS: 146464-93-9 | SKU: QM-0017652-01 | Size: 5 mg£595.53 GBP -
Propylene glycol monolaurate, Isomeric mixtures (Standard) [CAS 27194-74-7]
CAS: 27194-74-7 | SKU: QM-0016939 | Size: 1 Each Price on request -
Propafenone Dimer Impurity-d10 [CAS 1346602-27-4]
CAS: 1346602-27-4 | SKU: QM-0005913-01 | Size: 1 mg Price on request -
Pregnenolone impurity 1 [CAS 1162-53-4]
CAS: 1162-53-4 | SKU: QM-0003287-01 | Size: 10 mg£44.16 GBP -
Quetiapine impurity 1 (Standard) [CAS 1076199-40-0]
CAS: 1076199-40-0 | SKU: QM-0001661 | Size: 1 Each Price on request -
Quetiapine impurity 1 [CAS 1076199-40-0]
CAS: 1076199-40-0 | SKU: QM-0001660-01 | Size: 5 mg£275.99 GBP -
Pramipexole impurity 7-d10
SKU: QM-0148163-01 | Size: 5 mg Price on request -
Quetiapine dimer impurity-d8
SKU: QM-0147751-01 | Size: 1 mg Price on request -
Protein disulfide isomerase [CAS 37318-49-3]
CAS: 37318-49-3 | SKU: QM-0124783 | Size: 100 µg£577.31 GBP -
Pramipexole impurity 38-d3 [CAS 1217680-69-7]
CAS: 1217680-69-7 | SKU: QM-0107482 | Size: 1 Each Price on request -
Prasugrel chloride impurity [CAS 1056459-37-0]
CAS: 1056459-37-0 | SKU: QM-0062923 | Size: 1 Each Price on request -
Phoxim-d5 (phenyl-d5) (mixture of isomers)
SKU: QM-0054211 | Size: 1 Each Price on request -
Pinaverium impurity 1 (Standard) [CAS 54370-00-2]
CAS: 54370-00-2 | SKU: QM-0050980 | Size: 1 Each Price on request -
Pinaverium impurity 1 [CAS 54370-00-2]
CAS: 54370-00-2 | SKU: QM-0050979-01 | Size: 100 mg£44.16 GBP -
Plesafo impurity 2 (Standard) [CAS 1026380-17-5]
CAS: 1026380-17-5 | SKU: QM-0021292-01 | Size: 5 mg£250.47 GBP -
Plesafo impurity 2 [CAS 1026380-17-5]
CAS: 1026380-17-5 | SKU: QM-0021291-01 | Size: 5 mg£100.38 GBP -
Pitavastatin impurity 12 (Standard) [CAS 185105-98-0]
CAS: 185105-98-0 | SKU: QM-0016843 | Size: 1 Each Price on request -
Pitavastatin impurity 12 [CAS 185105-98-0]
CAS: 185105-98-0 | SKU: QM-0016842-01 | Size: 5 g£52.44 GBP -
Phosphoglucose isomerase, bacillus stearothermophilus [CAS 9001-41-6]
CAS: 9001-41-6 | SKU: QM-0179968-01 | Size: 250 U Price on request -
Phosphoglucose isomerase, Baker's Yeast [CAS 9001-41-6]
CAS: 9001-41-6 | SKU: QM-0172135 | Size: 1 KU£527.50 GBP -
Phosphoglucose Isomerase, Rabbit muscle [CAS 9001-41-6]
CAS: 9001-41-6 | SKU: QM-0091656 | Size: 1 KU£401.13 GBP -
Phosphomannose isomerase [CAS 9023-88-5]
CAS: 9023-88-5 | SKU: QM-0088476 | Size: 1000 U Price on request -
Pantoprazole impurity 26 (Standard) [CAS 107512-35-6]
CAS: 107512-35-6 | SKU: QM-0050414 | Size: 1 Each Price on request -
Pantoprazole impurity 26 [CAS 107512-35-6]
CAS: 107512-35-6 | SKU: QM-0050413-01 | Size: 250 mg£36.91 GBP -
Pantoprazole impurity 42 (Standard) [CAS 107512-34-5]
CAS: 107512-34-5 | SKU: QM-0049396 | Size: 1 Each Price on request -
Pantoprazole impurity 42 [CAS 107512-34-5]
CAS: 107512-34-5 | SKU: QM-0049395-01 | Size: 250 mg£52.44 GBP -
Parecoxib sodium impurity 10 (Standard) [CAS 198471-06-6]
CAS: 198471-06-6 | SKU: QM-0049006 | Size: 1 Each Price on request -
Parecoxib sodium impurity 10 [CAS 198471-06-6]
CAS: 198471-06-6 | SKU: QM-0049005-01 | Size: 10 mg£36.91 GBP -
Palbociclib impurity 2 [CAS 2204863-06-7]
CAS: 2204863-06-7 | SKU: QM-0021417-01 | Size: 5 mg£426.65 GBP -
Paricalcitol impurity 9 (Standard) [CAS 139356-37-9]
CAS: 139356-37-9 | SKU: QM-0017666-01 | Size: 5 mg£364.69 GBP -
Paricalcitol impurity 9 [CAS 139356-37-9]
CAS: 139356-37-9 | SKU: QM-0017665-01 | Size: 100 mg£966.11 GBP -
Paricalcitol impurity 1 (Standard) [CAS 139356-39-1]
CAS: 139356-39-1 | SKU: QM-0017596-01 | Size: 5 mg£313.65 GBP -
Paricalcitol impurity 1 [CAS 139356-39-1]
CAS: 139356-39-1 | SKU: QM-0017595-01 | Size: 5 mg£106.00 GBP -
Paliperidone impurity 1 (Standard) [CAS 1008796-22-2]
CAS: 1008796-22-2 | SKU: QM-0017551-01 | Size: 5 mg£106.00 GBP -
Paliperidone impurity 1 [CAS 1008796-22-2]
CAS: 1008796-22-2 | SKU: QM-0017550-01 | Size: 100 mg£301.50 GBP -
Paliperidone impurity 3 (Standard) [CAS 849903-79-3]
CAS: 849903-79-3 | SKU: QM-0017548 | Size: 1 Each Price on request -
Paliperidone impurity 3 [CAS 849903-79-3]
CAS: 849903-79-3 | SKU: QM-0017547-01 | Size: 25 mg£106.00 GBP -
Pantoprazole impurity 43 (Standard) [CAS 221615-72-1]
CAS: 221615-72-1 | SKU: QM-0017488 | Size: 1 Each Price on request -
Pantoprazole impurity 43 [CAS 221615-72-1]
CAS: 221615-72-1 | SKU: QM-0017487-01 | Size: 250 mg£44.16 GBP -
Palbociclib impurity 20 [CAS 1774898-55-3]
CAS: 1774898-55-3 | SKU: QM-0017264-01 | Size: 5 mg£94.75 GBP -
Peptidyl-prolyl cis-trans isomerase A/CYPA, Human (Tag Free)
SKU: QM-0205958-01 | Size: 5 µg£52.94 GBP -
Peptidyl-prolyl cis-trans isomerase A/CYPA, Human (solution)
SKU: QM-0205376-01 | Size: 10 µg£97.61 GBP -
Pelubiprofen impurity 2-13C2, d6
SKU: QM-0148168-01 | Size: 1 mg Price on request -
PB-22 8-Hydroxyisoquinoline isomer [CAS 1798021-82-5]
CAS: 1798021-82-5 | SKU: QM-0154413 | Size: 1 Each Price on request -
PB-22 5-Hydroxyquinoline isomer [CAS 1885091-23-5]
CAS: 1885091-23-5 | SKU: QM-0132812-01 | Size: 1 mg£414.50 GBP -
PB-22 7-Hydroxyquinoline isomer [CAS 1629062-76-5]
CAS: 1629062-76-5 | SKU: QM-0116313 | Size: 1 Each Price on request -
Peptidylprolyl isomerase [CAS 95076-93-0]
CAS: 95076-93-0 | SKU: QM-0111998 | Size: 100 µg£2,051.11 GBP -
PB-22 5-Hydroxyisoquinoline isomer [CAS 2365471-14-1]
CAS: 2365471-14-1 | SKU: QM-0103784-01 | Size: 1 mg£414.50 GBP -
PB-22 6-Hydroxyisoquinoline isomer [CAS 1797131-58-8]
CAS: 1797131-58-8 | SKU: QM-0100535 | Size: 1 Each Price on request -
PB-22 6-Hydroxyquinoline isomer [CAS 2365471-56-1]
CAS: 2365471-56-1 | SKU: QM-0092683 | Size: 1 Each Price on request -
PB-22 7-Hydroxyisoquinoline isomer [CAS 2365471-61-8]
CAS: 2365471-61-8 | SKU: QM-0080873-01 | Size: 1 mg£414.50 GBP -
Orlistat impurity-M3
SKU: QM-0053089 | Size: 1 Each Price on request -
Palbociclib impurity 2 (Standard) [CAS 2204863-06-7]
CAS: 2204863-06-7 | SKU: QM-0021418 | Size: 1 Each Price on request -
Orphenadrine impurity 6-d3 (hydrochloride)
SKU: QM-0148159-01 | Size: 5 mg Price on request -
O-Tolidine Sulfone (contains 2,6-Dimethyl isomer) [CAS 55011-44-4]
CAS: 55011-44-4 | SKU: QM-0050492-01 | Size: 250 mg£51.91 GBP -
NVP-CGM097 (stereoisomer) [CAS 2070009-54-8]
CAS: 2070009-54-8 | SKU: QM-0152783-01 | Size: 2 mg£426.65 GBP -
NVP-BHG712 isomer [CAS 2245892-85-5]
CAS: 2245892-85-5 | SKU: QM-0144056-01 | Size: 5 mg£140.88 GBP -
Olmesartan medoxomil impurity C [CAS 879562-26-2]
CAS: 879562-26-2 | SKU: QM-0075270-01 | Size: 5 mg£78.82 GBP