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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Ivabradine impurity 2 [CAS 73954-34-4]
CAS: 73954-34-4 | SKU: QM-0061718 | Size: 1 Each Price on request -
Isomer-CM 352 [CAS 1542205-84-4]
CAS: 1542205-84-4 | SKU: QM-0099011-01 | Size: 1 mg£499.55 GBP -
Ivabradine impurity 1 [CAS 1428869-91-3]
CAS: 1428869-91-3 | SKU: QM-0061717 | Size: 1 Each Price on request -
Isomerazin (Standard) [CAS 1088-17-1]
CAS: 1088-17-1 | SKU: QM-0085459 | Size: 1 Each Price on request -
Ibuprofen Impurity K [CAS 43153-07-7]
CAS: 43153-07-7 | SKU: QM-0143598-01 | Size: 5 mg£57.09 GBP -
Ibuprofen Impurity F (Standard) [CAS 65322-85-2]
CAS: 65322-85-2 | SKU: QM-0143597-01 | Size: 25 mg£71.58 GBP -
Ibuprofen Impurity F [CAS 65322-85-2]
CAS: 65322-85-2 | SKU: QM-0143596-01 | Size: 1 g£94.75 GBP -
Ibuprofen Impurity K (Standard) [CAS 43153-07-7]
CAS: 43153-07-7 | SKU: QM-0099672 | Size: 1 Each Price on request -
Ibuprofen impurity 1 [CAS 3585-47-5]
CAS: 3585-47-5 | SKU: QM-0061708-01 | Size: 5 mg£260.19 GBP -
Hydroxychloroquine EP impurity D-d5 (dihydrochloride)
SKU: QM-0148056-01 | Size: 1 mg Price on request -
Hydroxychloroquine Impurity F [CAS 6281-58-9]
CAS: 6281-58-9 | SKU: QM-0061711-01 | Size: 5 mg£928.45 GBP -
Hydroxychloroquine Impurity E [CAS 10500-64-8]
CAS: 10500-64-8 | SKU: QM-0061710 | Size: 100 mg£458.24 GBP -
Hydroxy Pioglitazone-d5 (M-IV) (Mixture of-diastereomers) [CAS 1189445-29-1]
CAS: 1189445-29-1 | SKU: QM-0143979 | Size: 500 µg£1,261.36 GBP -
Grazoprevir impurity 1 (Standard) [CAS 1206524-79-9]
CAS: 1206524-79-9 | SKU: QM-0017786 | Size: 1 Each Price on request -
Grazoprevir impurity 1 [CAS 1206524-79-9]
CAS: 1206524-79-9 | SKU: QM-0017785-01 | Size: 5 mg£118.38 GBP -
HEX azide, 6-isomer [CAS 1450752-91-6]
CAS: 1450752-91-6 | SKU: QM-0161209-01 | Size: 5 mg£595.53 GBP -
Glucose isomerase (immobilized) [CAS 9055-00-9]
CAS: 9055-00-9 | SKU: QM-0075746-01 | Size: 25 mg£62.26 GBP -
Glucose-6-phosphate isomerase, Human (His)
SKU: QM-0196796-01 | Size: 5 µg£146.50 GBP -
Glucose-6-phosphate isomerase, Mouse (P.pastoris, His)
SKU: QM-0193720-01 | Size: 5 µg£127.38 GBP -
Glucose-6-phosphate isomerase, Mouse (His-B2M)
SKU: QM-0132911 | Size: 1 Each Price on request -
Goserelin EP Impurity E [CAS 147688-42-4]
CAS: 147688-42-4 | SKU: QM-0119769 | Size: 1 Each Price on request -
GSK-1482160 (isomer) [CAS 1695551-19-9]
CAS: 1695551-19-9 | SKU: QM-0060370 | Size: 1 Each Price on request -
Flurbiprofen impurity 4 [CAS 55258-76-9]
CAS: 55258-76-9 | SKU: QM-0049765 | Size: 100 mg£212.81 GBP -
Flurbiprofen impurity 2 [CAS 42771-79-9]
CAS: 42771-79-9 | SKU: QM-0049764 | Size: 100 mg£133.00 GBP -
Flurbiprofen impurity 3 [CAS 137045-30-8]
CAS: 137045-30-8 | SKU: QM-0048393-01 | Size: 100 mg£120.63 GBP -
Fluralaner impurity 2 (Standard) [CAS 864725-62-2]
CAS: 864725-62-2 | SKU: QM-0017353-01 | Size: 25 mg£71.58 GBP -
Fluralaner impurity 2 [CAS 864725-62-2]
CAS: 864725-62-2 | SKU: QM-0017352-01 | Size: 100 mg£36.91 GBP -
Gefitinib impurity 1 (Standard) [CAS 675126-26-8]
CAS: 675126-26-8 | SKU: QM-0005713 | Size: 1 Each Price on request -
Gigantol isomer-1 [CAS 67884-30-4]
CAS: 67884-30-4 | SKU: QM-0165019-01 | Size: 5 mg£200.66 GBP -
Gefitinib impurity 2 [CAS 246512-44-7]
CAS: 246512-44-7 | SKU: QM-0079564-01 | Size: 5 mg£363.47 GBP -
Gefitinib impurity 1 [CAS 675126-26-8]
CAS: 675126-26-8 | SKU: QM-0143595-01 | Size: 500 mg£51.91 GBP -
Gefitinib impurity 5 [CAS 199327-61-2]
CAS: 199327-61-2 | SKU: QM-0144550-01 | Size: 50 mg£106.00 GBP -
Gefitinib impurity 5 (Standard) [CAS 199327-61-2]
CAS: 199327-61-2 | SKU: QM-0126543-01 | Size: 5 mg£70.54 GBP -
Fluticasone dimer impurity [CAS 220589-37-7]
CAS: 220589-37-7 | SKU: QM-0064811-01 | Size: 500 µg£1,365.85 GBP -
FAM azide, 5-isomer [CAS 510758-23-3]
CAS: 510758-23-3 | SKU: QM-0054953-01 | Size: 5 mg£64.33 GBP -
FAM NHS ester, 6-isomer [CAS 890090-41-2]
CAS: 890090-41-2 | SKU: QM-0054905 | Size: 1 Each Price on request -
FAM DBCO, 6-isomer [CAS 2768977-07-5]
CAS: 2768977-07-5 | SKU: QM-0054826-01 | Size: 5 mg£273.56 GBP -
FAM tetrazine, 5-isomer [CAS 1619222-85-3]
CAS: 1619222-85-3 | SKU: QM-0053948 | Size: 1 Each Price on request -
Febuxostat impurity 50 [CAS 2230270-05-8]
CAS: 2230270-05-8 | SKU: QM-0051899-01 | Size: 5 mg£36.91 GBP -
Famotidine impurity 16 (Standard) [CAS 76823-93-3]
CAS: 76823-93-3 | SKU: QM-0048199 | Size: 1 Each Price on request -
Famotidine impurity 16 [CAS 76823-93-3]
CAS: 76823-93-3 | SKU: QM-0048198 | Size: 1 g£61.75 GBP -
Fesoterodine impurity 1 (Standard) [CAS 250214-69-8]
CAS: 250214-69-8 | SKU: QM-0021254-01 | Size: 1 mg£212.81 GBP -
Fesoterodine impurity 1 [CAS 250214-69-8]
CAS: 250214-69-8 | SKU: QM-0021253-01 | Size: 5 mg£206.74 GBP -
FAM phosphoramidite, 5-isomer [CAS 147566-42-5]
CAS: 147566-42-5 | SKU: QM-0010580-01 | Size: 25 mg£57.09 GBP -
FAM amine, 5-isomer [CAS 2183440-41-5]
CAS: 2183440-41-5 | SKU: QM-0005833-01 | Size: 5 mg£275.99 GBP -
FAM hydrazide,5-isomer [CAS 2183440-64-2]
CAS: 2183440-64-2 | SKU: QM-0005831 | Size: 1 Each Price on request -
Febuxostat impurity 7 (Standard) [CAS 1350352-70-3]
CAS: 1350352-70-3 | SKU: QM-0005715 | Size: 1 Each Price on request -
Febuxostat n-butyl isomer (Standard) [CAS 1657014-33-9]
CAS: 1657014-33-9 | SKU: QM-0005714 | Size: 1 Each Price on request -
Fingolimod impurity 3 (Standard) [CAS 162358-08-9]
CAS: 162358-08-9 | SKU: QM-0003439 | Size: 1 Each Price on request -
Fingolimod impurity 3 [CAS 162358-08-9]
CAS: 162358-08-9 | SKU: QM-0003438 | Size: 1 Each Price on request -
FAM azide, 6-isomer [CAS 1386385-76-7]
CAS: 1386385-76-7 | SKU: QM-0161003-01 | Size: 1 mg£111.63 GBP -
Febuxostat amide impurity [CAS 1239233-86-3]
CAS: 1239233-86-3 | SKU: QM-0143604-01 | Size: 5 mg£98.13 GBP -
Febuxostat n-butyl isomer [CAS 1657014-33-9]
CAS: 1657014-33-9 | SKU: QM-0143600-01 | Size: 5 mg£57.09 GBP -
Farnesene (mixture of isomers) [CAS 125037-13-0]
CAS: 125037-13-0 | SKU: QM-0148875-01 | Size: 50 mg£118.38 GBP -
Febuxostat dicarboxylic acid impurity [CAS 1239233-87-4]
CAS: 1239233-87-4 | SKU: QM-0143603-01 | Size: 5 mg£206.74 GBP -
Fluorofenidone impurity 1-d3
SKU: QM-0148066-01 | Size: 5 mg Price on request -
Febuxostat impurity 7 [CAS 1350352-70-3]
CAS: 1350352-70-3 | SKU: QM-0143602-01 | Size: 5 mg£363.47 GBP -
Fluazinam impurity 1 (Standard) [CAS 169327-87-1]
CAS: 169327-87-1 | SKU: QM-0079071 | Size: 1 Each Price on request -
Febuxostat impurity 6 [CAS 1271738-74-9]
CAS: 1271738-74-9 | SKU: QM-0061714-01 | Size: 100 mg£679.37 GBP -
FAM hydrazide, 6-isomer [CAS 151890-73-2]
CAS: 151890-73-2 | SKU: QM-0069553 | Size: 1 Each Price on request -
FAM hydrazide, 6-isomer (hydrochloride) [CAS 2183440-65-3]
CAS: 2183440-65-3 | SKU: QM-0120633-01 | Size: 5 mg£206.74 GBP -
FAM alkyne, 6-isomer [CAS 478801-49-9]
CAS: 478801-49-9 | SKU: QM-0120288-01 | Size: 5 mg£144.25 GBP -
Febuxostat impurity 8 [CAS 144060-62-8]
CAS: 144060-62-8 | SKU: QM-0061713-01 | Size: 25 mg£67.44 GBP -
Febuxostat amide impurity (Standard) [CAS 1239233-86-3]
CAS: 1239233-86-3 | SKU: QM-0111372 | Size: 1 Each Price on request -
Febuxostat dicarboxylic acid impurity (Standard) [CAS 1239233-87-4]
CAS: 1239233-87-4 | SKU: QM-0108988 | Size: 1 Each Price on request -
Fexofenadine Impurity F [CAS 185066-33-5]
CAS: 185066-33-5 | SKU: QM-0061715 | Size: 1 Each Price on request -
FAM amine, 6-isomer [CAS 2183440-42-6]
CAS: 2183440-42-6 | SKU: QM-0096632-01 | Size: 1 mg£325.81 GBP -
Febuxostat isopropyl isomer [CAS 144060-52-6]
CAS: 144060-52-6 | SKU: QM-0061705-01 | Size: 5 mg£62.26 GBP -
Fluazinam impurity 1 [CAS 169327-87-1]
CAS: 169327-87-1 | SKU: QM-0056847 | Size: 1 Each Price on request -
Febuxostat impurity 8 (Standard) [CAS 144060-62-8]
CAS: 144060-62-8 | SKU: QM-0089523 | Size: 1 Each Price on request -
Etoposide impurity 1 (Standard) [CAS 23363-35-1]
CAS: 23363-35-1 | SKU: QM-0006371 | Size: 1 Each Price on request -
Etoposide impurity 1 [CAS 23363-35-1]
CAS: 23363-35-1 | SKU: QM-0006370-01 | Size: 5 mg£188.51 GBP -
Erlotinib lactam impurity [CAS 179688-29-0]
CAS: 179688-29-0 | SKU: QM-0047542-01 | Size: 25 g£56.05 GBP -
Esazomide impurity 11 (Standard) [CAS 69125-10-6]
CAS: 69125-10-6 | SKU: QM-0017499 | Size: 1 Each Price on request -
Esazomide impurity 11 [CAS 69125-10-6]
CAS: 69125-10-6 | SKU: QM-0017498-01 | Size: 100 mg£129.63 GBP -
Endoxifen-d5 (Z-isomer) [CAS 1584173-54-5]
CAS: 1584173-54-5 | SKU: QM-0016474 | Size: 1 Each Price on request -
Erlotinib impurity 44 [CAS 183321-85-9]
CAS: 183321-85-9 | SKU: QM-0004570-01 | Size: 1 mg£194.59 GBP -
Erlotinib impurity 45 [CAS 183321-83-7]
CAS: 183321-83-7 | SKU: QM-0004569-01 | Size: 5 mg£401.13 GBP -
Eribulin (mesylate) (purity>99%, single impurity ≤ 0.15%) [CAS 441045-17-6]
CAS: 441045-17-6 | SKU: QM-0077686-01 | Size: 500 µg£640.49 GBP -
Epinephrine impurity 19-d3 (hydrochloride)
SKU: QM-0148064-01 | Size: 5 mg Price on request -
Edaravone dimer impurity [CAS 177415-76-8]
CAS: 177415-76-8 | SKU: QM-0052487 | Size: 1 Each Price on request -
Duloxetine impurity 1 (Standard) [CAS 132335-47-8]
CAS: 132335-47-8 | SKU: QM-0049858 | Size: 1 Each Price on request -
Duloxetine impurity 1 [CAS 132335-47-8]
CAS: 132335-47-8 | SKU: QM-0049857 | Size: 5 g£88.00 GBP -
Dronedarone impurity 25 (hydrochloride) (Standard) [CAS 437651-44-0]
CAS: 437651-44-0 | SKU: QM-0017580-01 | Size: 5 mg£78.82 GBP -
Dronedarone impurity 25 (hydrochloride) [CAS 437651-44-0]
CAS: 437651-44-0 | SKU: QM-0017579-01 | Size: 100 mg£226.18 GBP -
DM51 impurity 1
SKU: QM-0007016 | Size: 1 Each Price on request -
Eltanexor Z-isomer (Standard) [CAS 1642300-78-4]
CAS: 1642300-78-4 | SKU: QM-0001817 | Size: 1 Each Price on request -
Endoxifen (E-isomer) [CAS 114828-90-9]
CAS: 114828-90-9 | SKU: QM-0155102-01 | Size: 5 mg£313.65 GBP -
Endoxifen (E-isomer hydrochloride) [CAS 1197194-61-8]
CAS: 1197194-61-8 | SKU: QM-0155101-01 | Size: 1 mg£100.38 GBP -
Eltanexor Z-isomer [CAS 1642300-78-4]
CAS: 1642300-78-4 | SKU: QM-0079304-01 | Size: 10 mM - 1 mL£461.88 GBP -
Endoxifen (Z-isomer) [CAS 112093-28-4]
CAS: 112093-28-4 | SKU: QM-0155098-01 | Size: 5 mg£118.38 GBP -
Dxr/DXP reductoisomerase, E.coli (Myc, His)
SKU: QM-0198086-01 | Size: 5 µg£122.88 GBP -
Edoxaban impurity 4 [CAS 480452-36-6]
CAS: 480452-36-6 | SKU: QM-0144818-01 | Size: 5 mg£325.81 GBP -
Endoxifen (Z-isomer hydrochloride) [CAS 1032008-74-4]
CAS: 1032008-74-4 | SKU: QM-0155099-01 | Size: 5 mg£129.63 GBP -
DM51 impurity 1-d9
SKU: QM-0148102-01 | Size: 5 mg Price on request -
DNA topoisomerase II inhibitor 1 [CAS 2459950-15-1]
CAS: 2459950-15-1 | SKU: QM-0066703 | Size: 1 Each Price on request -
Dodecenylsuccinic anhydride (mixture of isomers) [CAS 26544-38-7]
CAS: 26544-38-7 | SKU: QM-0098260-01 | Size: 1 g£51.91 GBP -
Edoxaban impurity 6 [CAS 480452-37-7]
CAS: 480452-37-7 | SKU: QM-0097928-01 | Size: 25 mg£137.50 GBP -
DM1 Impurity [CAS 936481-22-0]
CAS: 936481-22-0 | SKU: QM-0017397-01 | Size: 1 mg£331.88 GBP -
Disulfiram impurity 1-d10 [CAS 2749799-73-1]
CAS: 2749799-73-1 | SKU: QM-0148061-01 | Size: 1 mg Price on request -
DM50 impurity 1-d9-1
SKU: QM-0148101-01 | Size: 5 mg Price on request -
DM50 impurity 1-d9
SKU: QM-0148100-01 | Size: 5 mg Price on request -
Dihydroartemisinin (mixture of α and β isomers) [CAS 131175-87-6]
CAS: 131175-87-6 | SKU: QM-0117192-01 | Size: 50 mg£51.91 GBP -
Dicyclomine impurity 1 (Standard) [CAS 60263-54-9]
CAS: 60263-54-9 | SKU: QM-0049161 | Size: 1 Each Price on request -
Dicyclomine impurity 1 [CAS 60263-54-9]
CAS: 60263-54-9 | SKU: QM-0049160-01 | Size: 50 mg£194.59 GBP -
Difluorocarboxyfluorescein cadaverine, 5-isomer [CAS 886210-16-8]
CAS: 886210-16-8 | SKU: QM-0020368 | Size: 1 Each Price on request -
Difluorocarboxyfluorescein NHS Ester, 6-isomer [CAS 2702251-82-7]
CAS: 2702251-82-7 | SKU: QM-0010899 | Size: 1 Each Price on request -
Diatrizoic acid EP impurity A [CAS 1713-07-1]
CAS: 1713-07-1 | SKU: QM-0088757 | Size: 1 Each Price on request -
Devaleryl Valsartan Impurity (Standard) [CAS 676129-92-3]
CAS: 676129-92-3 | SKU: QM-0005717 | Size: 1 Each Price on request -
Dexamethasone impurity 3 (Standard) [CAS 37927-01-8]
CAS: 37927-01-8 | SKU: QM-0004045 | Size: 1 Each Price on request -
Dexamethasone impurity 3 [CAS 37927-01-8]
CAS: 37927-01-8 | SKU: QM-0004044-01 | Size: 5 mg£444.88 GBP -
Devaleryl Valsartan Impurity [CAS 676129-92-3]
CAS: 676129-92-3 | SKU: QM-0143609-01 | Size: 5 mg£118.38 GBP -
Desmethylclotiazepam Uncyclized Intermediate (hydrochloride) [CAS 74422-48-3]
CAS: 74422-48-3 | SKU: QM-0124892-01 | Size: 1 mg£285.71 GBP -
Dabigatran impurity 75 [CAS 1408238-36-7]
CAS: 1408238-36-7 | SKU: QM-0047606-01 | Size: 5 mg£57.61 GBP -
Dapagliflozin impurity 57 [CAS 1662702-90-0]
CAS: 1662702-90-0 | SKU: QM-0021437-01 | Size: 100 mg£140.88 GBP -
Dapagliflozin impurity 111 (Standard) [CAS 333359-90-3]
CAS: 333359-90-3 | SKU: QM-0021432 | Size: 1 Each Price on request -
Dapagliflozin impurity 111 [CAS 333359-90-3]
CAS: 333359-90-3 | SKU: QM-0021431-01 | Size: 25 mg£363.47 GBP -
Dapagliflozin impurity 112 (Standard) [CAS 872980-38-6]
CAS: 872980-38-6 | SKU: QM-0021430 | Size: 1 Each Price on request -
Dapagliflozin impurity 112 [CAS 872980-38-6]
CAS: 872980-38-6 | SKU: QM-0021429-01 | Size: 5 mg£140.88 GBP -
Dabigatran impurity 8 [CAS 1408238-40-3]
CAS: 1408238-40-3 | SKU: QM-0016852-01 | Size: 5 mg£100.38 GBP