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- (Trifluoromethyl) -L-phenylalanine [CAS 114926-38-4]
CAS: 114926-38-4 | SKU: QM-0184013-01 | Size: 500 mg£78.82 GBP -
4- (Trifluoromethoxy) phenylboronic acid [CAS 139301-27-2]
CAS: 139301-27-2 | SKU: QM-0155932-01 | Size: 25 g£51.91 GBP -
4- (Trifluoromethyl) benzoic acid-13C6 [CAS 2731552-41-1]
CAS: 2731552-41-1 | SKU: QM-0182188-01 | Size: 1 mg£363.47 GBP -
4-Amino-2-chlorobenzoic acid [CAS 2457-76-3]
CAS: 2457-76-3 | SKU: QM-0180785-01 | Size: 5 g£51.91 GBP -
4- (6-Bromo-2-benzothiazolyl) benzenamine [CAS 566169-97-9]
CAS: 566169-97-9 | SKU: QM-0137108-01 | Size: 5 mg£250.47 GBP -
4,5-Dichlorocatechol [CAS 3428-24-8]
CAS: 3428-24-8 | SKU: QM-0179469-01 | Size: 100 mg£134.13 GBP -
4-Amino-2,6-dichloropyrimidine [CAS 10132-07-7]
CAS: 10132-07-7 | SKU: QM-0179177-01 | Size: 10 g£51.91 GBP -
4-Acetaminophen sulfate-d3 [CAS 1020718-78-8]
CAS: 1020718-78-8 | SKU: QM-0156607 | Size: 1 mg£614.98 GBP -
4,8-Dioxa-3H-perfluorononanoic acid [CAS 919005-14-4]
CAS: 919005-14-4 | SKU: QM-0177905-01 | Size: 1 mg£426.65 GBP -
4-Acetaminophen sulfate-d3 (potassium) [CAS 1188263-45-7]
CAS: 1188263-45-7 | SKU: QM-0156606-01 | Size: 10 mg Price on request -
4-Acetylpyridine [CAS 1122-54-9]
CAS: 1122-54-9 | SKU: QM-0175340-01 | Size: 10 g£51.91 GBP -
4,6-Dichloropyrimidin-5-amine [CAS 5413-85-4]
CAS: 5413-85-4 | SKU: QM-0173377-01 | Size: 5 g£51.91 GBP -
4-Amino-2-fluorobenzoic acid [CAS 446-31-1]
CAS: 446-31-1 | SKU: QM-0171657-01 | Size: 5 g£51.91 GBP -
4- (Trifluoromethoxy) benzoic acid-d4 [CAS 2741881-05-8]
CAS: 2741881-05-8 | SKU: QM-0171439 | Size: 5 mg£912.65 GBP -
4,5-Dichloroveratrole [CAS 2772-46-5]
CAS: 2772-46-5 | SKU: QM-0062326-01 | Size: 250 mg£214.03 GBP -
4,6-Dichloro-N-methylpyridazine-3-carboxamide-d3 [CAS 1609393-89-6]
CAS: 1609393-89-6 | SKU: QM-0134367-01 | Size: 500 mg£40.02 GBP -
4- (Bromoacetyl) phenoxyacetic acid [CAS 29936-81-0]
CAS: 29936-81-0 | SKU: QM-0133655 | Size: 1 Each Price on request -
4-Acetylphenylboronic acid [CAS 149104-90-5]
CAS: 149104-90-5 | SKU: QM-0133619 | Size: 10 g£51.91 GBP -
4,5-Dichloro-3H-1,2-dithiol-3-one [CAS 1192-52-5]
CAS: 1192-52-5 | SKU: QM-0131843-01 | Size: 5 g£51.91 GBP -
4- (Trifluoromethoxy) aniline [CAS 461-82-5]
CAS: 461-82-5 | SKU: QM-0131548-01 | Size: 25 g£51.91 GBP -
4,6-Dichloroguaiacol [CAS 16766-31-7]
CAS: 16766-31-7 | SKU: QM-0062330 | Size: 1 Each Price on request -
4,7-Dichloroquinoline [CAS 86-98-6]
CAS: 86-98-6 | SKU: QM-0074414-01 | Size: 25 g£51.91 GBP -
4,6-Dichloro-2- (methylthio) pyrimidine [CAS 6299-25-8]
CAS: 6299-25-8 | SKU: QM-0074290-01 | Size: 25 g£51.91 GBP -
4,5-O-Dicaffeoyl quinic acid methyl ester [CAS 188742-80-5]
CAS: 188742-80-5 | SKU: QM-0125111 | Size: 1 Each Price on request -
4-Acetylsimvastatin (Standard) [CAS 145576-25-6]
CAS: 145576-25-6 | SKU: QM-0125078 | Size: 1 Each Price on request -
4-Acetaminophen sulfate-d4 [CAS 1261397-46-9]
CAS: 1261397-46-9 | SKU: QM-0123056 | Size: 1 mg Price on request -
4,7-Dichloroquinoline (Standard) [CAS 86-98-6]
CAS: 86-98-6 | SKU: QM-0120031-01 | Size: 25 mg£58.12 GBP -
4-Acetylbenzoic acid (Standard) [CAS 586-89-0]
CAS: 586-89-0 | SKU: QM-0117456-01 | Size: 5 mg£51.91 GBP -
4- (Trifluoromethyl) benzoic acid [CAS 455-24-3]
CAS: 455-24-3 | SKU: QM-0115608-01 | Size: 50 g£51.91 GBP -
4-Acetylsimvastatin [CAS 145576-25-6]
CAS: 145576-25-6 | SKU: QM-0062685-01 | Size: 10 mg£190.94 GBP -
4,5-Dichloroguaiacol [CAS 2460-49-3]
CAS: 2460-49-3 | SKU: QM-0062323-01 | Size: 100 mg£189.72 GBP -
4,6-Dichloro-3-formylcoumarin [CAS 51069-87-5]
CAS: 51069-87-5 | SKU: QM-0109121 | Size: 1 Each Price on request -
4-Acetylaminoantipyrine [CAS 83-15-8]
CAS: 83-15-8 | SKU: QM-0105896-01 | Size: 5 mg£36.91 GBP -
4- (2,4-Dichlorophenoxy) butanoic acid-d3 [CAS 1219802-46-6]
CAS: 1219802-46-6 | SKU: QM-0104903 | Size: 1 mg Price on request -
4-Amino-2-chloropyrimidine [CAS 7461-50-9]
CAS: 7461-50-9 | SKU: QM-0074168 | Size: 25 g£51.91 GBP -
4- (6-Bromo-2-benzothiazolyl) -N-methylbenzenamine [CAS 566169-98-0]
CAS: 566169-98-0 | SKU: QM-0000306 | Size: 1 Each Price on request -
4- (4-Chloro-2-methylphenoxy) butanoic acid-d3 [CAS 1219803-42-5]
CAS: 1219803-42-5 | SKU: QM-0100783-01 | Size: 500 µg£55.02 GBP -
4- (Trifluoromethyl) -L-phenylglycine [CAS 144789-75-3]
CAS: 144789-75-3 | SKU: QM-0096176-01 | Size: 500 mg£568.80 GBP -
4- (Trifluoromethoxy) aniline (Standard) [CAS 461-82-5]
CAS: 461-82-5 | SKU: QM-0094449-01 | Size: 25 mg£38.98 GBP -
4- (Trifluoromethyl) umbelliferone [CAS 575-03-1]
CAS: 575-03-1 | SKU: QM-0092170-01 | Size: 1 g£78.82 GBP -
4- (Trifluoromethoxy) benzoic acid-13C
SKU: QM-0091770 | Size: 1 mg Price on request -
4,7-Dichloroquinoline-15N [CAS 366495-92-3]
CAS: 366495-92-3 | SKU: QM-0074415-01 | Size: 1 mg£232.25 GBP -
4- (Bromomethyl) benzenesulfonyl fluoride [CAS 7612-88-6]
CAS: 7612-88-6 | SKU: QM-0086554-01 | Size: 100 mg£134.13 GBP -
4-Acetylaminoantipyrine (Standard) [CAS 83-15-8]
CAS: 83-15-8 | SKU: QM-0084661-01 | Size: 5 mg£94.75 GBP -
4-Acetylamino-2,6-anhydro-3,4-dideoxy-d-glycero-d-galactonon-2-enonicacid [CAS 263155-11-9]
CAS: 263155-11-9 | SKU: QM-0084446 | Size: 1 Each Price on request -
4- (2-Acetoxyacetyl) phenyl acetate [CAS 42528-99-4]
CAS: 42528-99-4 | SKU: QM-0080771-01 | Size: 5 mg£61.22 GBP -
4-Acetylbiphenyl [CAS 92-91-1]
CAS: 92-91-1 | SKU: QM-0080309-01 | Size: 100 g£51.91 GBP -
3’-O-Acetyl-dATP (sodium)
SKU: QM-0054663 | Size: 1 Each Price on request -
4,4'- (Propane-2,2-diyl) bis (2,6-dichlorophenol) -d6
SKU: QM-0054417 | Size: 1 mg£902.93 GBP -
4,5,6,7-Tetrabromoisobenzofuran-1,3-dione-13C6
SKU: QM-0054010 | Size: 1 Each Price on request -
4'-Fluoroacetophenone-d4 [CAS 1335333-86-2]
CAS: 1335333-86-2 | SKU: QM-0053762 | Size: 1 Each Price on request -
4'-Bromoacetophenone-d4 [CAS 343942-02-9]
CAS: 343942-02-9 | SKU: QM-0053672-01 | Size: 10 mg£252.91 GBP -
4 (Z),7 (Z),10 (Z),13 (Z) -Hexadecatetraenoic acid methyl ester [CAS 873108-81-7]
CAS: 873108-81-7 | SKU: QM-0051675 | Size: 1 Each Price on request -
4,5-Dibromo-1-methyl-1H-pyrrole-2-carboxylic acid [CAS 66067-06-9]
CAS: 66067-06-9 | SKU: QM-0051186 | Size: 1 Each Price on request -
4,4,5,5,6,6,6-Heptafluorohexanoic acid [CAS 356-02-5]
CAS: 356-02-5 | SKU: QM-0049603-01 | Size: 100 mg£134.13 GBP -
4,5-Dibromo-2-methylpyridazin-3-one [CAS 13645-74-4]
CAS: 13645-74-4 | SKU: QM-0049144-01 | Size: 100 mg£78.82 GBP -
4,5,6,7-Tetrabromo-1H-benzimidazole [CAS 577779-57-8]
CAS: 577779-57-8 | SKU: QM-0049142-01 | Size: 5 mg£313.65 GBP -
4,4-Difluorobenzhydrol [CAS 365-24-2]
CAS: 365-24-2 | SKU: QM-0048986-01 | Size: 25 g£51.91 GBP -
4'-Bromovalerophenone-d9
SKU: QM-0048202 | Size: 1 Each Price on request -
4"-Demethylgentamicin C1 [CAS 66322-28-9]
CAS: 66322-28-9 | SKU: QM-0024357 | Size: 1 Each Price on request -
4"-Demethylgentamicin C1a [CAS 61769-70-8]
CAS: 61769-70-8 | SKU: QM-0024356 | Size: 1 Each Price on request -
4"-Demethylgentamicin C2 [CAS 66277-10-9]
CAS: 66277-10-9 | SKU: QM-0024355 | Size: 1 Each Price on request -
4''-O-Acetylastilbin [CAS 1298135-49-5]
CAS: 1298135-49-5 | SKU: QM-0024035 | Size: 1 Each Price on request -
4'-O-Demethyldianemycin [CAS 80118-77-0]
CAS: 80118-77-0 | SKU: QM-0023012 | Size: 1 Each Price on request -
3′-Dephosphoacetyl-CoA [CAS 31664-34-3]
CAS: 31664-34-3 | SKU: QM-0019224 | Size: 1 Each Price on request -
4,4'- (6-Chloropyrimidine-2,4-diyl) dimorpholine [CAS 10244-24-3]
CAS: 10244-24-3 | SKU: QM-0017575-01 | Size: 100 mg£57.09 GBP -
4'-O-CH2-phosphate methyl ester-2'-O-Me-rU-3'-CE-phosphoramidite [CAS 2197181-94-3]
CAS: 2197181-94-3 | SKU: QM-0015379 | Size: 1 Each Price on request -
4'-Acetyl-chrysomycin A [CAS 2929437-59-0]
CAS: 2929437-59-0 | SKU: QM-0013822 | Size: 1 Each Price on request -
4'-Acetyl chrysomycin C [CAS 2827194-69-2]
CAS: 2827194-69-2 | SKU: QM-0011652 | Size: 1 Each Price on request -
4"- (2- (p-Chlorophenyl) acetoxyl) spiramycin
SKU: QM-0011200 | Size: 1 Each Price on request -
4'-Fluoro diazepam [CAS 52357-79-6]
CAS: 52357-79-6 | SKU: QM-0008423-01 | Size: 1 mg£381.69 GBP -
3′-Phosphoadenosine 5′-phosphosulfate (tetralithium salt) [CAS 102029-54-9]
CAS: 102029-54-9 | SKU: QM-0007790-01 | Size: 1 mg£602.31 GBP -
4'-Fluorouridine triphosphate (sodium)
SKU: QM-0007128 | Size: 5.68 mg (100 mM x 100 μL in Water)£1,556.60 GBP -
4'-Fluorouridine triphosphate [CAS 1251838-93-3]
CAS: 1251838-93-3 | SKU: QM-0007127 | Size: 1 Each Price on request -
3′-Deoxy-3′-fluoroguanosine [CAS 123402-21-1]
CAS: 123402-21-1 | SKU: QM-0205809-01 | Size: 5 mg£78.82 GBP -
4'-Bromo-resveratrol [CAS 1224713-90-9]
CAS: 1224713-90-9 | SKU: QM-0141083-01 | Size: 10 mM - 1 mL£134.13 GBP -
4'-Demethylpodophyllotoxin [CAS 40505-27-9]
CAS: 40505-27-9 | SKU: QM-0164855-01 | Size: 5 mg£78.82 GBP -
3′-Chloro-3′-deoxythymidine [CAS 25526-94-7]
CAS: 25526-94-7 | SKU: QM-0151521-01 | Size: 5 mg£263.84 GBP -
4',5'-Dibromofluorescein [CAS 596-03-2]
CAS: 596-03-2 | SKU: QM-0138563-01 | Size: 100 mg£129.63 GBP -
4'-Demethyldehydropodophyllotoxin [CAS 117669-31-5]
CAS: 117669-31-5 | SKU: QM-0197715-01 | Size: 1 mg£238.32 GBP -
4'-Trifluoromethyl-2-biphenyl carboxylic acid [CAS 84392-17-6]
CAS: 84392-17-6 | SKU: QM-0156035-01 | Size: 1 g£51.91 GBP -
3′-Deoxy-3′-fluorouridine [CAS 57944-13-5]
CAS: 57944-13-5 | SKU: QM-0150886-01 | Size: 5 mg£115.00 GBP -
4'-Demethyl-3,9-dihydroeucomin [CAS 107585-77-3]
CAS: 107585-77-3 | SKU: QM-0164496-01 | Size: 1 mg£426.65 GBP -
3’-Deoxy-3’-fluoro-2-thiouridine [CAS 439579-24-5]
CAS: 439579-24-5 | SKU: QM-0150884-01 | Size: 5 mg£740.12 GBP -
4,4-Difluoropiperidine (hydrochloride) [CAS 144230-52-4]
CAS: 144230-52-4 | SKU: QM-0175308-01 | Size: 5 g£51.91 GBP -
4'-Demethylepipodophyllotoxin [CAS 6559-91-7]
CAS: 6559-91-7 | SKU: QM-0154557-01 | Size: 500 mg£51.91 GBP -
3’-Deoxy-3’-fluoro-5-trifluoromethyluridine [CAS 439579-21-2]
CAS: 439579-21-2 | SKU: QM-0070323 | Size: 1 Each Price on request -
3’-Beta-C-Methyl-N6- (m-trifluoromethylbenzyl) adenosine
SKU: QM-0070029 | Size: 1 Each Price on request -
3′-O-Demethyl-4′-N-demethyl-4′-N-acetyl-4′-epi-staurosporine [CAS 2226941-29-1]
CAS: 2226941-29-1 | SKU: QM-0134163 | Size: 1 Each Price on request -
3’-Deoxy-3’-fluoro-N1-methyluridine
SKU: QM-0071056 | Size: 1 Each Price on request -
4,4'-Dimethoxyoctafluorobiphenyl [CAS 2200-71-7]
CAS: 2200-71-7 | SKU: QM-0133764 | Size: 1 Each Price on request -
4 (Z),7 (Z),10 (Z),13 (Z),16 (Z) -Nonadecapentaenoic acid methyl ester [CAS 2055816-84-5]
CAS: 2055816-84-5 | SKU: QM-0132886 | Size: 1 Each Price on request -
3′-Sialyl-N-acetyllactosamine [CAS 81693-22-3]
CAS: 81693-22-3 | SKU: QM-0131673-01 | Size: 5 mg£331.88 GBP -
3′,5′-Di-O-acetyl-2′-deoxy-2′-fluorouridine [CAS 10212-13-2]
CAS: 10212-13-2 | SKU: QM-0071413-01 | Size: 50 mg£199.44 GBP -
3’-Beta-C-ethynyl-N6- (m-trifluoromethyl benzyl) adenosine
SKU: QM-0070053 | Size: 1 Each Price on request -
3’-O-Acetyl-N2-iso-Butyroyl-2’-deoxy-guanosine [CAS 74925-81-8]
CAS: 74925-81-8 | SKU: QM-0071214 | Size: 1 Each Price on request -
4,4′-Dibromo diphenyl ether-13C12 [CAS 488710-17-4]
CAS: 488710-17-4 | SKU: QM-0126133 | Size: 1 Each Price on request -
3’-Beta-C-ethynyl-5-trifluoromethyluridine
SKU: QM-0070036 | Size: 1 Each Price on request -
4''-O-Acetylsaikosaponin A [CAS 102934-40-7]
CAS: 102934-40-7 | SKU: QM-0124800 | Size: 1 Each Price on request -
4'-Acetyl-chrysomycin B [CAS 2673269-86-6]
CAS: 2673269-86-6 | SKU: QM-0061079 | Size: 1 Each Price on request -
3′-Deoxy-3′-fluorocytidine [CAS 123402-20-0]
CAS: 123402-20-0 | SKU: QM-0070336-01 | Size: 5 mg£80.89 GBP -
4',4-Dibromobiphenyl-d8 [CAS 80523-79-1]
CAS: 80523-79-1 | SKU: QM-0122691 | Size: 1 mg Price on request -
3′-O-Demethylarctigenin [CAS 147022-95-5]
CAS: 147022-95-5 | SKU: QM-0121329-01 | Size: 1 mg£470.39 GBP -
3’-N-Acetyl-3’-amino-3’-deoxy-2’,5’-di-O-acetyluridine [CAS 2305416-09-3]
CAS: 2305416-09-3 | SKU: QM-0071286 | Size: 1 Each Price on request -
3’-Deoxy-3’-fluoro-xylo-N6- (m-methoxybenzyl) adenosine
SKU: QM-0070010 | Size: 1 Each Price on request -
3’-Deoxy-3’-fluoro-5-methyl-xylo-uridine [CAS 917110-29-3]
CAS: 917110-29-3 | SKU: QM-0070306 | Size: 1 Each Price on request -
3’-Beta-C-Ethynyl-5-fluorouridine
SKU: QM-0070960 | Size: 1 Each Price on request -
4'-Demethyleucomin [CAS 34818-83-2]
CAS: 34818-83-2 | SKU: QM-0119748 | Size: 1 Each Price on request -
3’-Deoxy-3’-fluoroinosine [CAS 117517-20-1]
CAS: 117517-20-1 | SKU: QM-0070300 | Size: 1 Each Price on request -
4'-Fluoroacetophenone [CAS 403-42-9]
CAS: 403-42-9 | SKU: QM-0117527 | Size: 100 g£57.09 GBP -
4,4'-Dichlorobenzophenone [CAS 90-98-2]
CAS: 90-98-2 | SKU: QM-0117321 | Size: 25 g£51.91 GBP -
3′-Chloro-3′-deoxythymidine (Standard) [CAS 25526-94-7]
CAS: 25526-94-7 | SKU: QM-0116701 | Size: 1 Each Price on request -
4'-Demethylepipodophyllotoxin (Standard) [CAS 6559-91-7]
CAS: 6559-91-7 | SKU: QM-0116537-01 | Size: 25 mg£62.26 GBP -
3’-Deoxy-3’-fluoro-5-methoxyluridine [CAS 2072145-76-5]
CAS: 2072145-76-5 | SKU: QM-0070327 | Size: 1 Each Price on request -
3’-Deoxy-3’-fluoro-5-fluorouridine [CAS 112668-56-1]
CAS: 112668-56-1 | SKU: QM-0070326 | Size: 1 Each Price on request -
3’-Deoxy-3’-fluoro-xyloadenosine [CAS 20535-16-4]
CAS: 20535-16-4 | SKU: QM-0070147-01 | Size: 1 mg£101.50 GBP -
3’-Deoxy-3’-fluoro-N6, N6-dimethyladenosine [CAS 122654-28-8]
CAS: 122654-28-8 | SKU: QM-0069982 | Size: 1 Each Price on request -
4,5,6-Trichloroguaiacol [CAS 2668-24-8]
CAS: 2668-24-8 | SKU: QM-0062324 | Size: 1 Each Price on request -
3’-Azido-3’-deoxy-5-trifluoromethyluridine [CAS 2095417-62-0]
CAS: 2095417-62-0 | SKU: QM-0070283 | Size: 1 Each Price on request -
3′-Chloro-3′-deoxy-5′-O- (triphenylmethyl) thymidine [CAS 34627-62-8]
CAS: 34627-62-8 | SKU: QM-0070902-01 | Size: 100 mg£471.61 GBP