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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4- (4'-Hydroxyphenyl) -2-butanone4'-O-β-D- (2''-O-galloyl-6''-O-p-coumaroyl) glucopyranoside [CAS 105274-16-6]
CAS: 105274-16-6 | SKU: QM-0120998 | Size: 1 Each Price on request -
4-Hydroxy Atorvastatin-d5 (hemicalcium) [CAS 265989-45-5]
CAS: 265989-45-5 | SKU: QM-0065491 | Size: 1 mg£1,172.66 GBP -
4-Hydroxy Aceclofenac-d4
SKU: QM-0065461 | Size: 1 mg Price on request -
4-Hydroxy hexenal-d3 [CAS 148706-05-2]
CAS: 148706-05-2 | SKU: QM-0060517 | Size: 50 µg£206.74 GBP -
4- (6-Methyl-4-oxohept-5-en-2-yl) cyclohex-2-en-1-one [CAS 170380-68-4]
CAS: 170380-68-4 | SKU: QM-0110818 | Size: 1 Each Price on request -
4-Hydroxy AtorvastatinAtorvastatin-d5 (hemicalcium)
SKU: QM-0110566 | Size: 1 mg Price on request -
4-Hydroxy hexenal [CAS 17427-21-3]
CAS: 17427-21-3 | SKU: QM-0106781 | Size: 1 Each Price on request -
4-Hydroxy-2-methylbenzenesulfonic acid (ammonium) [CAS 2742982-16-5]
CAS: 2742982-16-5 | SKU: QM-0063059 | Size: 1 Each Price on request -
4-Hydroxy-2,6,6-trimethyl-1-cyclohexenecarboxylic acid [CAS 62218-55-7]
CAS: 62218-55-7 | SKU: QM-0103370 | Size: 1 Each Price on request -
4-Desmethyl Istradefylline [CAS 160434-48-0]
CAS: 160434-48-0 | SKU: QM-0062676 | Size: 1 Each Price on request -
4- (1,3-Dioxolan-2-yl) phenethyl methanesulfonate [CAS 2369046-75-1]
CAS: 2369046-75-1 | SKU: QM-0102509 | Size: 1 Each Price on request -
4-Hydroxy propofol 4-O-β-D-Glucuronide [CAS 115005-78-2]
CAS: 115005-78-2 | SKU: QM-0101799 | Size: 1 mg£1,015.92 GBP -
4- (trans) -Acetyl-3,6,8-trihydroxy-3-methyldihydronaphthalenone [CAS 263368-91-8]
CAS: 263368-91-8 | SKU: QM-0100393 | Size: 1 Each Price on request -
4-Azido-2-hydroxy-N-[2- (2-pyridinyldithio) ethyl]benzamide [CAS 164575-82-0]
CAS: 164575-82-0 | SKU: QM-0100358-01 | Size: 10 mg£534.79 GBP -
4-Boc-2-Oxopiperazine [CAS 76003-29-7]
CAS: 76003-29-7 | SKU: QM-0099639-01 | Size: 25 g£65.37 GBP -
4-Hydroxy Atorvastatin lactone [CAS 163217-70-7]
CAS: 163217-70-7 | SKU: QM-0060935 | Size: 1 mg£1,218.83 GBP -
4- (5- (3-Hydroxypropyl) -7-methoxybenzofuran-2-yl) -2-methoxyphenol [CAS 144735-57-9]
CAS: 144735-57-9 | SKU: QM-0094208 | Size: 1 Each Price on request -
4-hydroxy DiPT (hydrochloride) [CAS 63065-90-7]
CAS: 63065-90-7 | SKU: QM-0092747-01 | Size: 1 mg£122.88 GBP -
4- (Hydroxymethyl) benzoic acid (Standard) [CAS 3006-96-0]
CAS: 3006-96-0 | SKU: QM-0092030-01 | Size: 25 mg£53.98 GBP -
4-Hydroxy propofol 1-O-β-D-glucuronide [CAS 114991-25-2]
CAS: 114991-25-2 | SKU: QM-0088520 | Size: 1 Each Price on request -
4-Hydroxy-1,10-secocadin-5-ene-1,10-dione [CAS 226904-40-1]
CAS: 226904-40-1 | SKU: QM-0088206 | Size: 1 Each Price on request -
4-Hydroxy nonenal mercapturic acid-d3
SKU: QM-0087325 | Size: 1 mg£754.70 GBP -
4- (4-Hydroxy-3-methoxyphenyl) butane-1,2-diol [CAS 39115-22-5]
CAS: 39115-22-5 | SKU: QM-0086791 | Size: 1 Each Price on request -
4-Hydroxy-17β-estradiol-1,2,16,16,17-d5 [CAS 221093-38-5]
CAS: 221093-38-5 | SKU: QM-0066991 | Size: 1 mg£2,083.91 GBP -
4-Hydroxy-11,12,13-trinor-5-eudesmen-7-one [CAS 133369-42-3]
CAS: 133369-42-3 | SKU: QM-0084714 | Size: 1 Each Price on request -
4-Hydroxy-1- (2-phenylethyl) piperidine [CAS 3518-76-1]
CAS: 3518-76-1 | SKU: QM-0084081-01 | Size: 1 mg£307.58 GBP -
4-Hydroxy-1- (2,3,5-tri-O-benzoyl-β-D-ribofuranosyl) -2 (1H) -pyridinone [CAS 23220-74-8]
CAS: 23220-74-8 | SKU: QM-0082208 | Size: 1 Each Price on request -
4-Hydroxy Nonenal Glutathione-d3
SKU: QM-0078509 | Size: 1 Each Price on request -
4',5,7,8-Tetrahydroxyflavanone [CAS 479-54-9]
CAS: 479-54-9 | SKU: QM-0055504 | Size: 1 Each Price on request -
4,5-Diamino-6-hydroxypyrimidine-13C,15N [CAS 1246820-56-3]
CAS: 1246820-56-3 | SKU: QM-0054524-01 | Size: 5 mg£613.76 GBP -
3′-Oxolutein [CAS 23984-55-6]
CAS: 23984-55-6 | SKU: QM-0053739-01 | Size: 2.5 mg£556.65 GBP -
4,6-Dioxoheptanoic acid (Standard) [CAS 51568-18-4]
CAS: 51568-18-4 | SKU: QM-0047992-01 | Size: 5 mg£118.38 GBP -
4- ((3-Hydroxypropyl) amino) -3-nitrophenol (Standard) [CAS 92952-81-3]
CAS: 92952-81-3 | SKU: QM-0047550 | Size: 1 Each Price on request -
4'-Hydroxy-3'-methylacetophenone (Standard) [CAS 876-02-8]
CAS: 876-02-8 | SKU: QM-0047474-01 | Size: 10 mg£42.09 GBP -
4'-Hydroxyflavanone (Standard) [CAS 6515-37-3]
CAS: 6515-37-3 | SKU: QM-0024550 | Size: 1 Each Price on request -
4'-Hydroxy-6,7,8,3'-tetramethoxyflavonol [CAS 1879030-01-9]
CAS: 1879030-01-9 | SKU: QM-0024520-01 | Size: 1 mg£205.52 GBP -
4'-Hydroxychalcone (Standard) [CAS 2657-25-2]
CAS: 2657-25-2 | SKU: QM-0024419 | Size: 1 Each Price on request -
4'-O-β-D-Glucosyl-5,3'-dihydroxy-7-methoxyflavanone [CAS 114219-00-0]
CAS: 114219-00-0 | SKU: QM-0024152 | Size: 1 Each Price on request -
4'-Hydroxy-5,6,7-trimethoxyflavanone [CAS 72943-91-0]
CAS: 72943-91-0 | SKU: QM-0023992 | Size: 1 Each Price on request -
3β-Hydroxy-27-p-Z-coumaroyloxyurs-12-en-28-oic acid
SKU: QM-0023139 | Size: 1 Each Price on request -
3′-Hydroxytectoridin [CAS 285565-82-4]
CAS: 285565-82-4 | SKU: QM-0023096 | Size: 1 Each Price on request -
4,5-Dihydroxy-2- ((5-methyl-3,8-dimethylene-2-oxododecahydroazuleno[6,5-b]furan-5-yl) oxy) tetrahydro-2H-pyran-3-yl acetate [CAS 97941-42-9]
CAS: 97941-42-9 | SKU: QM-0021766 | Size: 1 Each Price on request -
4'-Ethyl-4'-hydroxy-7',8'-dihydrospiro[[1,3]dioxolane-2,6'-pyrano[3,4-f]indolizine]-3',10' (1'H,4'H) -dione-d5 [CAS 1346604-65-6]
CAS: 1346604-65-6 | SKU: QM-0017318-01 | Size: 2.5 mg Price on request -
4,5,6,7-Tetrafluoro-1-hydroxy-1,2-benziodoxole-3 (1H) -one [CAS 954373-94-5]
CAS: 954373-94-5 | SKU: QM-0016866-01 | Size: 25 mg£78.82 GBP -
4''-Oxoavermectin B1a [CAS 122831-73-6]
CAS: 122831-73-6 | SKU: QM-0014568 | Size: 1 Each Price on request -
4 (Z),7 (Z),10 (Z),13 (Z),16 (Z) -N- (2-Hydroxyethyl) -docosapentaenamide [CAS 211817-55-9]
CAS: 211817-55-9 | SKU: QM-0009511 | Size: 1 Each Price on request -
4,6,4'-Trihydroxy-3'-methoxyaurone [CAS 873787-99-6]
CAS: 873787-99-6 | SKU: QM-0008588-01 | Size: 1 mg£188.51 GBP -
4'-Hydroxytamoxifen (TFA) (Standard)
SKU: QM-0005087 | Size: 1 Each Price on request -
4'-Hydroxytamoxifen (TFA)
SKU: QM-0075376-01 | Size: 5 mg£414.50 GBP -
4,6-Dioxoheptanoic acid [CAS 51568-18-4]
CAS: 51568-18-4 | SKU: QM-0205316-01 | Size: 5 mg£59.16 GBP -
4',5-Dihydroxyflavone [CAS 6665-67-4]
CAS: 6665-67-4 | SKU: QM-0164492-01 | Size: 5 mg£72.61 GBP -
4'-Hydroxyflavanone [CAS 6515-37-3]
CAS: 6515-37-3 | SKU: QM-0204906-01 | Size: 5 mg£78.82 GBP -
4'-Hydroxy diclofenac-d4 [CAS 254762-27-1]
CAS: 254762-27-1 | SKU: QM-0151719-01 | Size: 1 mg£351.32 GBP -
4',2-Dihydroxy-4,6-dimethoxydihydrochalcone [CAS 151752-07-7]
CAS: 151752-07-7 | SKU: QM-0198036-01 | Size: 5 mg£621.05 GBP -
4,4'-Dihydroxy-2,6-dimethoxydihydrochalcone [CAS 151752-08-8]
CAS: 151752-08-8 | SKU: QM-0196606-01 | Size: 1 mg£78.82 GBP -
3β,7β,15β-Trihydroxy-11-oxo-lanosta-8-en-24→20 lactone [CAS 1694587-15-9]
CAS: 1694587-15-9 | SKU: QM-0164825-01 | Size: 10 mg Price on request -
4'-Hydroxy diclofenac [CAS 64118-84-9]
CAS: 64118-84-9 | SKU: QM-0151717-01 | Size: 1 mg£351.32 GBP -
4,6-Dihydroxypyrimidine [CAS 1193-24-4]
CAS: 1193-24-4 | SKU: QM-0192790-01 | Size: 100 g£57.09 GBP -
3β-Hydroxy-5-cholestenoic acid-d5 [CAS 1620239-03-3]
CAS: 1620239-03-3 | SKU: QM-0144601 | Size: 1 mg£1,368.28 GBP -
3′,4′,7-Trihydroxyflavone [CAS 2150-11-0]
CAS: 2150-11-0 | SKU: QM-0165115-01 | Size: 1 mg£218.88 GBP -
4,4'-Dihydroxybiphenyl [CAS 92-88-6]
CAS: 92-88-6 | SKU: QM-0189816-01 | Size: 25 g£51.91 GBP -
3β-Hydroxylanosta-8,24-dien-21-al [CAS 96574-03-7]
CAS: 96574-03-7 | SKU: QM-0163536-01 | Size: 1 mg£551.80 GBP -
3β-Hydroxy-7-oxocholest-5-enoic acid-d3 [CAS 2342573-92-4]
CAS: 2342573-92-4 | SKU: QM-0149037 | Size: 1 mg£1,173.88 GBP -
4'-Hydroxy-3'-methylacetophenone [CAS 876-02-8]
CAS: 876-02-8 | SKU: QM-0185783-01 | Size: 500 mg£52.44 GBP -
4'-Hydroxy Atomoxetine-d3 (hemioxalate)
SKU: QM-0148033-01 | Size: 1 mg Price on request -
3β,5α,6β-Trihydroxycholestane [CAS 1253-84-5]
CAS: 1253-84-5 | SKU: QM-0180916-01 | Size: 5 mg£129.63 GBP -
4'-Hydroxywarfarin-d4 [CAS 94820-63-0]
CAS: 94820-63-0 | SKU: QM-0146506-01 | Size: 1 mg Price on request -
4,5-Dioxodehydroasimilobine [CAS 82644-81-3]
CAS: 82644-81-3 | SKU: QM-0163774-01 | Size: 1 mg£652.64 GBP -
4'-Hydroxy Fenretinide-d4 [CAS 2714413-41-7]
CAS: 2714413-41-7 | SKU: QM-0148068-01 | Size: 5 mg Price on request -
4'-trans-Hydroxy Cilostazol [CAS 87153-04-6]
CAS: 87153-04-6 | SKU: QM-0145870-01 | Size: 1 mg£339.17 GBP -
4'-Hydroxy-2,4-dimethoxychalcone [CAS 151135-64-7]
CAS: 151135-64-7 | SKU: QM-0174772-01 | Size: 5 mg£325.81 GBP -
4,2'-Dihydroxy-4'-methoxychalcone [CAS 63529-06-6]
CAS: 63529-06-6 | SKU: QM-0174001-01 | Size: 1 mg£551.80 GBP -
3β,7α-Dihydroxycholest-5-enoic acid-d3 [CAS 2342573-95-7]
CAS: 2342573-95-7 | SKU: QM-0137801 | Size: 1 mg£1,844.56 GBP -
4'-Hydroxychalcone [CAS 2657-25-2]
CAS: 2657-25-2 | SKU: QM-0170949-01 | Size: 5 g£78.82 GBP -
4'-Demethylpodophyllotoxone [CAS 93780-84-8]
CAS: 93780-84-8 | SKU: QM-0163943-01 | Size: 1 mg£238.32 GBP -
3β,7β-Dihydroxy-25-methoxycucurbita-5,23-dien-19-al [CAS 132587-67-8]
CAS: 132587-67-8 | SKU: QM-0164192 | Size: 1 Each Price on request -
3β,5α,6β-Trihydroxycholanic acid [CAS 16030-92-5]
CAS: 16030-92-5 | SKU: QM-0154264 | Size: 1 Each Price on request -
4'-Hydroxy atomoxetine β-D-glucuronide [CAS 540729-08-6]
CAS: 540729-08-6 | SKU: QM-0167163 | Size: 1 mg£1,731.56 GBP -
3β-Hydroxy-5-cholestenoic acid [CAS 6561-58-6]
CAS: 6561-58-6 | SKU: QM-0144600 | Size: 1 mg£742.55 GBP -
4'-Hydroxy flurbiprofen [CAS 52807-12-2]
CAS: 52807-12-2 | SKU: QM-0139339-01 | Size: 1 mg£118.38 GBP -
4'-Hydroxytamoxifen (Standard) [CAS 82413-23-8]
CAS: 82413-23-8 | SKU: QM-0141168 | Size: 1 Each Price on request -
3β-Hydroxy-11,12-epoxy–friedoolean-14-enyl palmitate [CAS 495389-95-2]
CAS: 495389-95-2 | SKU: QM-0163490 | Size: 1 Each Price on request -
4,4'-Dihydroxydiphenylmethane-d10 [CAS 1794786-93-8]
CAS: 1794786-93-8 | SKU: QM-0135863-01 | Size: 1 mg£621.05 GBP -
4'-Hydroxyvalerophenone [CAS 2589-71-1]
CAS: 2589-71-1 | SKU: QM-0135182-01 | Size: 25 g£55.02 GBP -
4,9,9'-Trihydroxy-3,3'-dimethoxy-8,4'-oxyneolignan [CAS 53505-68-3]
CAS: 53505-68-3 | SKU: QM-0135147 | Size: 1 Each Price on request -
4''-Hydroxyisojasminin [CAS 135378-09-5]
CAS: 135378-09-5 | SKU: QM-0133861 | Size: 1 Each Price on request -
4,6-Dioxoheptanoic acid-13C5 [CAS 881835-86-5]
CAS: 881835-86-5 | SKU: QM-0131099-01 | Size: 1 mg£577.31 GBP -
4',4''-Dihydroxyanigorootin [CAS 448949-11-9]
CAS: 448949-11-9 | SKU: QM-0131072 | Size: Inquire Price on request -
3′-Omethyl-5′-hydroxydiplacone [CAS 1005517-26-9]
CAS: 1005517-26-9 | SKU: QM-0128669 | Size: 1 Each Price on request -
4,12-Dimethoxy-6- (7,8-dihydroxy-7,8-dihydrostyryl) -2-pyrone [CAS 149947-22-8]
CAS: 149947-22-8 | SKU: QM-0127837 | Size: 1 mg£444.88 GBP -
3β,7β,17β-Trihydroxyandrost-5-ene [CAS 2697-85-0]
CAS: 2697-85-0 | SKU: QM-0127086 | Size: 1 Each Price on request -
4- ((4- ((4-Aminophenyl) sulfonyl) phenyl) amino) -4-oxobutanoic acid [CAS 5934-14-5]
CAS: 5934-14-5 | SKU: QM-0123860 | Size: 1 Each Price on request -
4- (1,2-Dihydroxyethyl) benzene-1,2-diol-d5 [CAS 1794783-36-0]
CAS: 1794783-36-0 | SKU: QM-0123332-01 | Size: 1 mg£719.47 GBP -
3β-Hydroxy-lup-20 (29) -en-16-one [CAS 65043-60-9]
CAS: 65043-60-9 | SKU: QM-0072563-01 | Size: 1 mg£652.64 GBP -
3′-Hydroxy-4′-O-methylglabridin [CAS 175554-11-7]
CAS: 175554-11-7 | SKU: QM-0064947 | Size: 1 Each Price on request -
4,5-Dimethyl-3-hydroxy-2 (5H) -furanone-13C2 [CAS 156420-66-5]
CAS: 156420-66-5 | SKU: QM-0116110 | Size: 1 mg£619.84 GBP -
4'-Hydroxy pyrimethanil-d4 [CAS 1794897-91-8]
CAS: 1794897-91-8 | SKU: QM-0115204-01 | Size: 1 mg£542.08 GBP -
4'-Hydroxy diclofenac-13C6 [CAS 1189656-64-1]
CAS: 1189656-64-1 | SKU: QM-0071862 | Size: 1 mg£1,493.42 GBP -
3β,5α,6β-Trihydroxycholestane-d7 [CAS 127684-07-5]
CAS: 127684-07-5 | SKU: QM-0114677 | Size: 1 mg£765.63 GBP -
4'-trans-Hydroxy Cilostazol-d5
SKU: QM-0063156 | Size: 1 mg Price on request -
4'-Hydroxypiptocarphin A [CAS 103994-39-4]
CAS: 103994-39-4 | SKU: QM-0113868 | Size: 1 Each Price on request -
3β,7β-Dihydroxy-5-cholestenoic acid [CAS 1246298-66-7]
CAS: 1246298-66-7 | SKU: QM-0111051 | Size: 1 Each Price on request -
4,4'-Dihydroxybenzophenone [CAS 611-99-4]
CAS: 611-99-4 | SKU: QM-0108601 | Size: 500 g£106.00 GBP -
4'-Hydroxytamoxifen [CAS 82413-23-8]
CAS: 82413-23-8 | SKU: QM-0060526 | Size: 1 mg£538.43 GBP -
3β-Hydroxyurs-11-en-28,13β-olide [CAS 35959-05-8]
CAS: 35959-05-8 | SKU: QM-0106163 | Size: 1 mg£715.82 GBP -
3β,5α,9α-Trihydroxyergosta-7,22-dien-6-one [CAS 88191-14-4]
CAS: 88191-14-4 | SKU: QM-0113492 | Size: Inquire Price on request -
3′-Hydroxytectorigenin-7-O-β-D-xylosyl- (1→6) -β-D-glucopyranoside [CAS 2408020-53-9]
CAS: 2408020-53-9 | SKU: QM-0105239-01 | Size: 1 mg£757.13 GBP -
3β-Hydroxy-hop-22 (29) -ene [CAS 58801-23-3]
CAS: 58801-23-3 | SKU: QM-0104751 | Size: 1 Each Price on request -
4'-trans-Hydroxy Cilostazol-d4
SKU: QM-0103412 | Size: 1 mg Price on request -
3β,15α-Dihydroxy-7,11,23-trioxo-lanost-8-dien-26-oic acid [CAS 117354-72-0]
CAS: 117354-72-0 | SKU: QM-0102997 | Size: 1 Each Price on request -
4'-tert-Butyldimethylsilyl-6-hydroxy Raloxifene [CAS 174264-46-1]
CAS: 174264-46-1 | SKU: QM-0062730-01 | Size: 25 mg£222.53 GBP -
4,5-Dihydroxy-2,3-pentanedione
SKU: QM-0072184 | Size: Inquire Price on request -
3′-Azido-2′,3′-dideoxy-5-hydroxyuridine [CAS 111495-90-0]
CAS: 111495-90-0 | SKU: QM-0068144-01 | Size: 1 mg£106.00 GBP -
4',5-Dihydroxy Diclofenac-13C6 [CAS 1309283-30-4]
CAS: 1309283-30-4 | SKU: QM-0090724 | Size: 1 mg Price on request -
4,4'-Dihydroxy-2',6'-dimethoxychalcone [CAS 123316-64-3]
CAS: 123316-64-3 | SKU: QM-0090613 | Size: 1 Each Price on request -
3′-Hydroxyflavanone [CAS 92496-65-6]
CAS: 92496-65-6 | SKU: QM-0088186-01 | Size: 25 mg£51.91 GBP -
4,4'-Dihydroxybiphenyl-d8 [CAS 612480-60-1]
CAS: 612480-60-1 | SKU: QM-0088153 | Size: 1 mg Price on request -
3β,7β,15α-Trihydroxy-4- (hydroxymethyl) -11,23-dioxo-lanost-8-en-26-oic acid [CAS 1961358-03-1]
CAS: 1961358-03-1 | SKU: QM-0088097-01 | Size: 1 mg£757.13 GBP -
3β,7α-Dihydroxycholest-5-enoic acid [CAS 115538-84-6]
CAS: 115538-84-6 | SKU: QM-0088053 | Size: 1 mg£1,556.60 GBP -
4'-Methoxy-5,6-dihydroxyisoflavone-7-O-β-D-glucopyranoside [CAS 959960-45-3]
CAS: 959960-45-3 | SKU: QM-0087813 | Size: 1 Each Price on request