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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(15α) -15,26-Dihydroxylanosta-7,9 (11),24-trien-3-one [CAS 420781-85-7]
CAS: 420781-85-7 | SKU: QM-0092182 | Size: 1 Each Price on request -
(2,6-Dihydroxy-4-methoxyphenyl) (4-hydroxyphenyl) methanone [CAS 55051-85-9]
CAS: 55051-85-9 | SKU: QM-0086594 | Size: 1 Each Price on request -
(2-Hydroxyethoxy) acetic acid [CAS 13382-47-3]
CAS: 13382-47-3 | SKU: QM-0062503 | Size: 1 Each Price on request -
(2,4,6-Trichloro-3-hydroxy-5-methoxyphenyl) methyl β-D-glucopyranoside [CAS 2839363-14-1]
CAS: 2839363-14-1 | SKU: QM-0085496-01 | Size: 1 mg£285.71 GBP -
(1S,3R) -3-Hydroxycyclopentane carboxylic acid methyl ester [CAS 1292307-06-2]
CAS: 1292307-06-2 | SKU: QM-0084849 | Size: 1 Each Price on request -
(-) -12α-Hydroxyevodol [CAS 120722-04-5]
CAS: 120722-04-5 | SKU: QM-0084383 | Size: 1 Each Price on request -
(2,4-Dihydroxyphenyl) acetonitrile [CAS 57576-34-8]
CAS: 57576-34-8 | SKU: QM-0084179-01 | Size: 1 mg£836.11 GBP -
(+)-Desmethylxestospongin B [CAS 144789-03-7]
CAS: 144789-03-7 | SKU: QM-0113010 | Size: Inquire Price on request -
Zopiclone impurity-1 [CAS 43200-81-3]
CAS: 43200-81-3 | SKU: QM-0050094-01 | Size: 250 mg£51.91 GBP -
α-Hydroxy Metoprolol-d5 (Mixture of Diastereomers) [CAS 1189934-03-9]
CAS: 1189934-03-9 | SKU: QM-0062509 | Size: 1 mg£681.80 GBP -
Xanthorrhizol impurity 1 [CAS 196193-23-4]
CAS: 196193-23-4 | SKU: QM-0053821 | Size: 1 Each Price on request -
Vardenafil Oxopiperazine (Impurity) -d6
SKU: QM-0053759 | Size: 1 Each Price on request -
Vonoprazan impurity 4 [CAS 56448-22-7]
CAS: 56448-22-7 | SKU: QM-0049786-01 | Size: 100 mg£120.63 GBP -
Umeclidinium bromide impurity 8 (Standard) [CAS 55022-88-3]
CAS: 55022-88-3 | SKU: QM-0047609 | Size: 1 Each Price on request -
Umeclidinium bromide impurity 8 [CAS 55022-88-3]
CAS: 55022-88-3 | SKU: QM-0047608-01 | Size: 100 mg£137.50 GBP -
Vildagliptin impurity 1 [CAS 565453-40-9]
CAS: 565453-40-9 | SKU: QM-0021237-01 | Size: 5 mg£89.13 GBP -
Vitamin impurity 4 [CAS 2229745-37-1]
CAS: 2229745-37-1 | SKU: QM-0017670-01 | Size: 5 mg£331.88 GBP -
Voriconazole impurity 1 (Standard) [CAS 137330-52-0]
CAS: 137330-52-0 | SKU: QM-0017620 | Size: 1 Each Price on request -
Voriconazole impurity 1 [CAS 137330-52-0]
CAS: 137330-52-0 | SKU: QM-0017619-01 | Size: 5 mg£241.97 GBP -
Valproic acid impurity 1 (Standard) [CAS 5343-52-2]
CAS: 5343-52-2 | SKU: QM-0017033 | Size: 1 Each Price on request -
Valproic acid impurity 1 [CAS 5343-52-2]
CAS: 5343-52-2 | SKU: QM-0017032-01 | Size: 100 mg£103.75 GBP -
Uradil impurity 1 (Standard) [CAS 31737-09-4]
CAS: 31737-09-4 | SKU: QM-0016823 | Size: 1 Each Price on request -
Uradil impurity 1 [CAS 31737-09-4]
CAS: 31737-09-4 | SKU: QM-0016822-01 | Size: 100 mg£51.91 GBP -
Vitamin impurity 3 (Standard) [CAS 483-55-6]
CAS: 483-55-6 | SKU: QM-0006125 | Size: 1 Each Price on request -
Vitamin impurity 3 [CAS 483-55-6]
CAS: 483-55-6 | SKU: QM-0006124-01 | Size: 25 mg£74.68 GBP -
W-7 (isomer hydrochloride) [CAS 69762-85-2]
CAS: 69762-85-2 | SKU: QM-0079800-01 | Size: 1 mg£91.38 GBP -
VIC phosphoramidite, 6-isomer [CAS 1414265-81-8]
CAS: 1414265-81-8 | SKU: QM-0161214-01 | Size: 5 mg£78.82 GBP -
Verapamil EP Impurity C (hydrochloride) [CAS 51012-67-0]
CAS: 51012-67-0 | SKU: QM-0145656-01 | Size: 5 mg£238.32 GBP -
Voriconazole EP impurity D-d3
SKU: QM-0148218-01 | Size: 5 mg Price on request -
Vonoprazan impurity 11-d5 (fumarate)
SKU: QM-0183287-01 | Size: 5 mg Price on request -
Type II topoisomerase inhibitor 1 [CAS 2245691-60-3]
CAS: 2245691-60-3 | SKU: QM-0068774 | Size: 1 Each Price on request -
Ulevostinag (isomer 3) [CAS 2082743-98-2]
CAS: 2082743-98-2 | SKU: QM-0063738 | Size: 1 Each Price on request -
Vericiguat impurity-2
SKU: QM-0122395 | Size: 1 Each Price on request -
Ulevostinag (isomer 2) [CAS 2082743-99-3]
CAS: 2082743-99-3 | SKU: QM-0063737 | Size: 1 Each Price on request -
VIC azide, 6-isomer
SKU: QM-0096293 | Size: 1 Each Price on request -
Ulevostinag (isomer 1) [CAS 2231258-61-8]
CAS: 2231258-61-8 | SKU: QM-0063736 | Size: Inquire Price on request -
Vericiguat impurity-3
SKU: QM-0092939 | Size: 1 Each Price on request -
Ulevostinag (isomer 4) [CAS 2082743-97-1]
CAS: 2082743-97-1 | SKU: QM-0063739 | Size: 1 Each Price on request -
Vericiguat impurity-1 [CAS 2135333-04-7]
CAS: 2135333-04-7 | SKU: QM-0087301 | Size: 1 Each Price on request -
Trimetazidine impurity 10 [CAS 879646-17-0]
CAS: 879646-17-0 | SKU: QM-0049452-01 | Size: 5 mg£57.61 GBP -
TTA-Q6 (isomer) [CAS 910484-32-1]
CAS: 910484-32-1 | SKU: QM-0083508-01 | Size: 5 mg£111.63 GBP -
Triosephosphate isomerase [CAS 9023-78-3]
CAS: 9023-78-3 | SKU: QM-0199830-01 | Size: 1 mg£301.50 GBP -
Trospium EP impurity C-d8 (chloride)
SKU: QM-0148203-01 | Size: 5 mg Price on request -
Trityl olmesartan medoxomil impurity III [CAS 1227626-51-8]
CAS: 1227626-51-8 | SKU: QM-0062379 | Size: 1 Each Price on request -
Tridecanol (mixture of isomers) [CAS 26248-42-0]
CAS: 26248-42-0 | SKU: QM-0105563 | Size: 1 Each Price on request -
Tolterodine Ep Impurity D-d7 [CAS 1794768-30-1]
CAS: 1794768-30-1 | SKU: QM-0052941-01 | Size: 2.5 mg£613.76 GBP -
Tranexamic acid impurity 1 (Standard) [CAS 1197-17-7]
CAS: 1197-17-7 | SKU: QM-0049433 | Size: 1 Each Price on request -
Tranexamic acid impurity 1 [CAS 1197-17-7]
CAS: 1197-17-7 | SKU: QM-0049432-01 | Size: 50 mg£139.75 GBP -
Tofacitinib Impurity T [CAS 1675248-19-7]
CAS: 1675248-19-7 | SKU: QM-0017776-01 | Size: 5 mg£138.63 GBP -
Tolterodine impurity 1 (Standard) [CAS 260389-90-0]
CAS: 260389-90-0 | SKU: QM-0017680-01 | Size: 5 mg£67.44 GBP -
Tolterodine impurity 1 [CAS 260389-90-0]
CAS: 260389-90-0 | SKU: QM-0017679-01 | Size: 100 mg£212.81 GBP -
Tolvaptan Impurity [CAS 137977-97-0]
CAS: 137977-97-0 | SKU: QM-0017240-01 | Size: 250 mg£59.16 GBP -
Topoisomerase II-IN-25
SKU: QM-0015662 | Size: 1 Each Price on request -
Topoisomerase I-IN-18
SKU: QM-0015191 | Size: 1 Each Price on request -
Topoisomerase II-IN-24 [CAS 613254-63-0]
CAS: 613254-63-0 | SKU: QM-0013474 | Size: 1 Each Price on request -
Topoisomerase I/II-IN-1
SKU: QM-0012786 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-11
SKU: QM-0012427 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 23
SKU: QM-0011990 | Size: 1 Each Price on request -
Topoisomerase inhibitor 6 [CAS 2987726-03-2]
CAS: 2987726-03-2 | SKU: QM-0011798 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-10
SKU: QM-0009416 | Size: 1 Each Price on request -
Topoisomerase I/II inhibitor 7 [CAS 489413-54-9]
CAS: 489413-54-9 | SKU: QM-0008933-01 | Size: 25 mg£466.75 GBP -
Topoisomerase I/II inhibitor 8 [CAS 355400-87-2]
CAS: 355400-87-2 | SKU: QM-0008876 | Size: 1 Each Price on request -
Topoisomerase inhibitor 5 [CAS 2758889-92-6]
CAS: 2758889-92-6 | SKU: QM-0008626 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 20
SKU: QM-0152454-01 | Size: 5 mg£369.55 GBP -
Topoisomerase II inhibitor 14 [CAS 305343-00-4]
CAS: 305343-00-4 | SKU: QM-0194903-01 | Size: 5 mg£313.65 GBP -
Topoisomerase I inhibitor 8 [CAS 210346-40-0]
CAS: 210346-40-0 | SKU: QM-0149525-01 | Size: 5 mg£452.17 GBP -
Topoisomerase II inhibitor 13 [CAS 451515-89-2]
CAS: 451515-89-2 | SKU: QM-0151143-01 | Size: 5 mg£140.88 GBP -
Topoisomerase I/II inhibitor 5
SKU: QM-0154181 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 7 [CAS 2408639-81-4]
CAS: 2408639-81-4 | SKU: QM-0066924 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-9 [CAS 16346-97-7]
CAS: 16346-97-7 | SKU: QM-0167356-01 | Size: 5 mg£68.47 GBP -
Topoisomerase II inhibitor 20 (TFA)
SKU: QM-0135966 | Size: 5 mg£369.55 GBP -
Topoisomerase IV inhibitor 2 [CAS 2883403-36-7]
CAS: 2883403-36-7 | SKU: QM-0059181 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 17
SKU: QM-0073634 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 11 [CAS 2476559-00-7]
CAS: 2476559-00-7 | SKU: QM-0067636 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 10
SKU: QM-0072408 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 16
SKU: QM-0130108 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 18 [CAS 2382959-65-9]
CAS: 2382959-65-9 | SKU: QM-0129614 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-3 [CAS 2538528-11-7]
CAS: 2538528-11-7 | SKU: QM-0067585 | Size: 1 Each Price on request -
Topoisomerase inhibitor 4 [CAS 3021532-95-3]
CAS: 3021532-95-3 | SKU: QM-0127446 | Size: 1 Each Price on request -
Topoisomerase inhibitor 2 [CAS 2713986-17-3]
CAS: 2713986-17-3 | SKU: QM-0068272 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 4 [CAS 2560590-49-8]
CAS: 2560590-49-8 | SKU: QM-0065211 | Size: 1 Each Price on request -
Topoisomerases/ribosomes-IN-1
SKU: QM-0125071 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 19
SKU: QM-0123205 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-1 [CAS 2407521-87-1]
CAS: 2407521-87-1 | SKU: QM-0066521 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 17 [CAS 2413582-45-1]
CAS: 2413582-45-1 | SKU: QM-0121815 | Size: 1 Each Price on request -
Topoisomerase I/II inhibitor 3 [CAS 2770804-74-3]
CAS: 2770804-74-3 | SKU: QM-0066929 | Size: 1 Each Price on request -
Topoisomerase inhibitor 3 [CAS 3026832-96-9]
CAS: 3026832-96-9 | SKU: QM-0073473 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-2 [CAS 2407521-90-6]
CAS: 2407521-90-6 | SKU: QM-0066522 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 11 [CAS 2922723-28-0]
CAS: 2922723-28-0 | SKU: QM-0072615 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 3 [CAS 2588211-50-9]
CAS: 2588211-50-9 | SKU: QM-0065200 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 13
SKU: QM-0073464 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 15 [CAS 451516-79-3]
CAS: 451516-79-3 | SKU: QM-0071935 | Size: 1 Each Price on request -
Topoisomerase I/II inhibitor 4 [CAS 3031403-77-4]
CAS: 3031403-77-4 | SKU: QM-0068094 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 5
SKU: QM-0065212 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-6
SKU: QM-0070074 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-5 [CAS 3037545-23-3]
CAS: 3037545-23-3 | SKU: QM-0069857 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 2 [CAS 2588211-44-1]
CAS: 2588211-44-1 | SKU: QM-0065199 | Size: 1 Each Price on request -
Topoisomerase I/II inhibitor 2 [CAS 2770804-58-3]
CAS: 2770804-58-3 | SKU: QM-0065276 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 6 [CAS 2393082-56-7]
CAS: 2393082-56-7 | SKU: QM-0066869 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 14
SKU: QM-0109957 | Size: 1 Each Price on request -
Topoisomerase II/EGFR-IN-1
SKU: QM-0072920 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-7
SKU: QM-0070080 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 15
SKU: QM-0104491 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 7 [CAS 2697171-03-0]
CAS: 2697171-03-0 | SKU: QM-0066651 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 6 [CAS 2987586-62-7]
CAS: 2987586-62-7 | SKU: QM-0066775 | Size: 1 Each Price on request -
Topoisomerase I/II inhibitor 6
SKU: QM-0102881 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 8 [CAS 2493298-68-1]
CAS: 2493298-68-1 | SKU: QM-0066671 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 10 [CAS 2488208-96-2]
CAS: 2488208-96-2 | SKU: QM-0067618 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 5 [CAS 2513461-95-3]
CAS: 2513461-95-3 | SKU: QM-0066003 | Size: 1 Each Price on request -
Topoisomerase IIα-IN-8 [CAS 1251578-67-2]
CAS: 1251578-67-2 | SKU: QM-0098080 | Size: 1 mg£78.82 GBP -
Topoisomerase II inhibitor 1 [CAS 2375613-31-1]
CAS: 2375613-31-1 | SKU: QM-0096003-01 | Size: 1 mg£301.50 GBP -
Topoisomerase II inhibitor 9 [CAS 2413901-61-6]
CAS: 2413901-61-6 | SKU: QM-0066672 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 3 [CAS 99140-25-7]
CAS: 99140-25-7 | SKU: QM-0065210 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 16 [CAS 2403729-27-9]
CAS: 2403729-27-9 | SKU: QM-0071971-01 | Size: 1 mg£126.25 GBP -
Topoisomerase IIα-IN-4 [CAS 2860554-26-1]
CAS: 2860554-26-1 | SKU: QM-0069387 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 4 [CAS 2485135-31-5]
CAS: 2485135-31-5 | SKU: QM-0065229 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 9 [CAS 1228150-86-4]
CAS: 1228150-86-4 | SKU: QM-0072407 | Size: 1 Each Price on request -
Topoisomerase I inhibitor 12
SKU: QM-0073327 | Size: 1 Each Price on request -
Topoisomerase IV inhibitor 1 [CAS 2883403-42-5]
CAS: 2883403-42-5 | SKU: QM-0059180 | Size: 1 Each Price on request -
Topoisomerase II inhibitor 12 [CAS 2304527-20-4]
CAS: 2304527-20-4 | SKU: QM-0067652 | Size: 1 Each Price on request