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 mgRegular price £499.55 GBPRegular priceSale price £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 mgRegular price £57.09 GBPRegular priceSale price £57.09 GBP -
Ibuprofen Impurity F (Standard) [CAS 65322-85-2]
CAS: 65322-85-2 | SKU: QM-0143597-01 | Size: 25 mgRegular price £71.58 GBPRegular priceSale price £71.58 GBP -
Ibuprofen Impurity F [CAS 65322-85-2]
CAS: 65322-85-2 | SKU: QM-0143596-01 | Size: 1 gRegular price £94.75 GBPRegular priceSale price £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 mgRegular price £260.19 GBPRegular priceSale price £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 mgRegular price £928.45 GBPRegular priceSale price £928.45 GBP -
Hydroxychloroquine Impurity E [CAS 10500-64-8]
CAS: 10500-64-8 | SKU: QM-0061710 | Size: 100 mgRegular price £458.24 GBPRegular priceSale price £458.24 GBP -
Hydroxy Pioglitazone-d5 (M-IV) (Mixture of-diastereomers) [CAS 1189445-29-1]
CAS: 1189445-29-1 | SKU: QM-0143979 | Size: 500 µgRegular price £1,261.36 GBPRegular priceSale price £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 mgRegular price £118.38 GBPRegular priceSale price £118.38 GBP -
HEX azide, 6-isomer [CAS 1450752-91-6]
CAS: 1450752-91-6 | SKU: QM-0161209-01 | Size: 5 mgRegular price £595.53 GBPRegular priceSale price £595.53 GBP -
Glucose isomerase (immobilized) [CAS 9055-00-9]
CAS: 9055-00-9 | SKU: QM-0075746-01 | Size: 25 mgRegular price £62.26 GBPRegular priceSale price £62.26 GBP -
Glucose-6-phosphate isomerase, Human (His)
SKU: QM-0196796-01 | Size: 5 µgRegular price £146.50 GBPRegular priceSale price £146.50 GBP -
Glucose-6-phosphate isomerase, Mouse (P.pastoris, His)
SKU: QM-0193720-01 | Size: 5 µgRegular price £127.38 GBPRegular priceSale price £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 mgRegular price £212.81 GBPRegular priceSale price £212.81 GBP -
Flurbiprofen impurity 2 [CAS 42771-79-9]
CAS: 42771-79-9 | SKU: QM-0049764 | Size: 100 mgRegular price £133.00 GBPRegular priceSale price £133.00 GBP -
Flurbiprofen impurity 3 [CAS 137045-30-8]
CAS: 137045-30-8 | SKU: QM-0048393-01 | Size: 100 mgRegular price £120.63 GBPRegular priceSale price £120.63 GBP -
Fluralaner impurity 2 (Standard) [CAS 864725-62-2]
CAS: 864725-62-2 | SKU: QM-0017353-01 | Size: 25 mgRegular price £71.58 GBPRegular priceSale price £71.58 GBP -
Fluralaner impurity 2 [CAS 864725-62-2]
CAS: 864725-62-2 | SKU: QM-0017352-01 | Size: 100 mgRegular price £51.91 GBPRegular priceSale price £51.91 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 mgRegular price £200.66 GBPRegular priceSale price £200.66 GBP -
Gefitinib impurity 2 [CAS 246512-44-7]
CAS: 246512-44-7 | SKU: QM-0079564-01 | Size: 5 mgRegular price £363.47 GBPRegular priceSale price £363.47 GBP -
Gefitinib impurity 1 [CAS 675126-26-8]
CAS: 675126-26-8 | SKU: QM-0143595-01 | Size: 500 mgRegular price £51.91 GBPRegular priceSale price £51.91 GBP -
Gefitinib impurity 5 [CAS 199327-61-2]
CAS: 199327-61-2 | SKU: QM-0144550-01 | Size: 50 mgRegular price £106.00 GBPRegular priceSale price £106.00 GBP -
Gefitinib impurity 5 (Standard) [CAS 199327-61-2]
CAS: 199327-61-2 | SKU: QM-0126543-01 | Size: 5 mgRegular price £70.54 GBPRegular priceSale price £70.54 GBP -
Fluticasone dimer impurity [CAS 220589-37-7]
CAS: 220589-37-7 | SKU: QM-0064811-01 | Size: 500 µgRegular price £1,365.85 GBPRegular priceSale price £1,365.85 GBP -
FAM azide, 5-isomer [CAS 510758-23-3]
CAS: 510758-23-3 | SKU: QM-0054953-01 | Size: 5 mgRegular price £64.33 GBPRegular priceSale price £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 mgRegular price £273.56 GBPRegular priceSale price £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 mgRegular price £51.91 GBPRegular priceSale price £51.91 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 gRegular price £76.75 GBPRegular priceSale price £76.75 GBP -
Fesoterodine impurity 1 (Standard) [CAS 250214-69-8]
CAS: 250214-69-8 | SKU: QM-0021254-01 | Size: 1 mgRegular price £212.81 GBPRegular priceSale price £212.81 GBP -
Fesoterodine impurity 1 [CAS 250214-69-8]
CAS: 250214-69-8 | SKU: QM-0021253-01 | Size: 5 mgRegular price £206.74 GBPRegular priceSale price £206.74 GBP -
FAM phosphoramidite, 5-isomer [CAS 147566-42-5]
CAS: 147566-42-5 | SKU: QM-0010580-01 | Size: 25 mgRegular price £57.09 GBPRegular priceSale price £57.09 GBP -
FAM amine, 5-isomer [CAS 2183440-41-5]
CAS: 2183440-41-5 | SKU: QM-0005833-01 | Size: 5 mgRegular price £275.99 GBPRegular priceSale price £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 mgRegular price £111.63 GBPRegular priceSale price £111.63 GBP -
Febuxostat amide impurity [CAS 1239233-86-3]
CAS: 1239233-86-3 | SKU: QM-0143604-01 | Size: 5 mgRegular price £98.13 GBPRegular priceSale price £98.13 GBP -
Febuxostat n-butyl isomer [CAS 1657014-33-9]
CAS: 1657014-33-9 | SKU: QM-0143600-01 | Size: 5 mgRegular price £57.09 GBPRegular priceSale price £57.09 GBP -
Farnesene (mixture of isomers) [CAS 125037-13-0]
CAS: 125037-13-0 | SKU: QM-0148875-01 | Size: 50 mgRegular price £118.38 GBPRegular priceSale price £118.38 GBP -
Febuxostat dicarboxylic acid impurity [CAS 1239233-87-4]
CAS: 1239233-87-4 | SKU: QM-0143603-01 | Size: 5 mgRegular price £206.74 GBPRegular priceSale price £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 mgRegular price £363.47 GBPRegular priceSale price £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 mgRegular price £679.37 GBPRegular priceSale price £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 mgRegular price £206.74 GBPRegular priceSale price £206.74 GBP -
FAM alkyne, 6-isomer [CAS 478801-49-9]
CAS: 478801-49-9 | SKU: QM-0120288-01 | Size: 5 mgRegular price £144.25 GBPRegular priceSale price £144.25 GBP -
Febuxostat impurity 8 [CAS 144060-62-8]
CAS: 144060-62-8 | SKU: QM-0061713-01 | Size: 25 mgRegular price £67.44 GBPRegular priceSale price £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 mgRegular price £325.81 GBPRegular priceSale price £325.81 GBP -
Febuxostat isopropyl isomer [CAS 144060-52-6]
CAS: 144060-52-6 | SKU: QM-0061705-01 | Size: 5 mgRegular price £62.26 GBPRegular priceSale price £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 mgRegular price £188.51 GBPRegular priceSale price £188.51 GBP -
Erlotinib lactam impurity [CAS 179688-29-0]
CAS: 179688-29-0 | SKU: QM-0047542-01 | Size: 25 gRegular price £56.05 GBPRegular priceSale price £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 mgRegular price £129.63 GBPRegular priceSale price £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 mgRegular price £194.59 GBPRegular priceSale price £194.59 GBP -
Erlotinib impurity 45 [CAS 183321-83-7]
CAS: 183321-83-7 | SKU: QM-0004569-01 | Size: 5 mgRegular price £401.13 GBPRegular priceSale price £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 µgRegular price £640.49 GBPRegular priceSale price £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 gRegular price £88.00 GBPRegular priceSale price £88.00 GBP -
Dronedarone impurity 25 (hydrochloride) (Standard) [CAS 437651-44-0]
CAS: 437651-44-0 | SKU: QM-0017580-01 | Size: 5 mgRegular price £78.82 GBPRegular priceSale price £78.82 GBP -
Dronedarone impurity 25 (hydrochloride) [CAS 437651-44-0]
CAS: 437651-44-0 | SKU: QM-0017579-01 | Size: 100 mgRegular price £226.18 GBPRegular priceSale price £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 mgRegular price £313.65 GBPRegular priceSale price £313.65 GBP -
Endoxifen (E-isomer hydrochloride) [CAS 1197194-61-8]
CAS: 1197194-61-8 | SKU: QM-0155101-01 | Size: 1 mgRegular price £100.38 GBPRegular priceSale price £100.38 GBP -
Eltanexor Z-isomer [CAS 1642300-78-4]
CAS: 1642300-78-4 | SKU: QM-0079304-01 | Size: 10 mM - 1 mLRegular price £461.88 GBPRegular priceSale price £461.88 GBP -
Endoxifen (Z-isomer) [CAS 112093-28-4]
CAS: 112093-28-4 | SKU: QM-0155098-01 | Size: 5 mgRegular price £118.38 GBPRegular priceSale price £118.38 GBP -
Dxr/DXP reductoisomerase, E.coli (Myc, His)
SKU: QM-0198086-01 | Size: 5 µgRegular price £122.88 GBPRegular priceSale price £122.88 GBP -
Edoxaban impurity 4 [CAS 480452-36-6]
CAS: 480452-36-6 | SKU: QM-0144818-01 | Size: 5 mgRegular price £325.81 GBPRegular priceSale price £325.81 GBP -
Endoxifen (Z-isomer hydrochloride) [CAS 1032008-74-4]
CAS: 1032008-74-4 | SKU: QM-0155099-01 | Size: 5 mgRegular price £129.63 GBPRegular priceSale price £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 gRegular price £51.91 GBPRegular priceSale price £51.91 GBP -
Edoxaban impurity 6 [CAS 480452-37-7]
CAS: 480452-37-7 | SKU: QM-0097928-01 | Size: 25 mgRegular price £137.50 GBPRegular priceSale price £137.50 GBP -
DM1 Impurity [CAS 936481-22-0]
CAS: 936481-22-0 | SKU: QM-0017397-01 | Size: 1 mgRegular price £331.88 GBPRegular priceSale price £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 mgRegular price £51.91 GBPRegular priceSale price £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 mgRegular price £194.59 GBPRegular priceSale price £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 mgRegular price £444.88 GBPRegular priceSale price £444.88 GBP -
Devaleryl Valsartan Impurity [CAS 676129-92-3]
CAS: 676129-92-3 | SKU: QM-0143609-01 | Size: 5 mgRegular price £118.38 GBPRegular priceSale price £118.38 GBP -
Desmethylclotiazepam Uncyclized Intermediate (hydrochloride) [CAS 74422-48-3]
CAS: 74422-48-3 | SKU: QM-0124892-01 | Size: 1 mgRegular price £285.71 GBPRegular priceSale price £285.71 GBP -
Dabigatran impurity 75 [CAS 1408238-36-7]
CAS: 1408238-36-7 | SKU: QM-0047606-01 | Size: 5 mgRegular price £72.61 GBPRegular priceSale price £72.61 GBP -
Dapagliflozin impurity 57 [CAS 1662702-90-0]
CAS: 1662702-90-0 | SKU: QM-0021437-01 | Size: 100 mgRegular price £140.88 GBPRegular priceSale price £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 mgRegular price £363.47 GBPRegular priceSale price £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 mgRegular price £140.88 GBPRegular priceSale price £140.88 GBP -
Dabigatran impurity 8 [CAS 1408238-40-3]
CAS: 1408238-40-3 | SKU: QM-0016852-01 | Size: 5 mgRegular price £100.38 GBPRegular priceSale price £100.38 GBP