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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:octahydro-2-nitrosocyclopenta[c]pyrrole
- CAS:54786-86-6
- MF:C7H12N2O
- Structure:
- Chemical Name:1-Cyano-3-isopropylguanidine
- CAS:44830-55-9
- MF:C5H10N4
- Chemical Name:Citalopram Related Compound E
- CAS:
- MF:
- Structure:
- Chemical Name:Clazuril
- CAS:101831-36-1
- MF:C17H10Cl2N4O2
- Structure:
- Chemical Name:SulfaMethoxazole N4-glucoside
- CAS:119691-75-7
- MF:C16H21N3O8S
- Structure:
- Chemical Name:4-Nitro-2-phenoxyaniline
- CAS:5422-92-4
- MF:C12H10N2O3
- Structure:
- Chemical Name:4'-(pyrimidin-2-ylsulphamoyl)acetanilide
- CAS:127-74-2
- MF:C12H12N4O3S
- Structure:
- Chemical Name:GLIMEPIRIDE RELATED COMPOUND C (20 MG) (GLIMEPIRIDE URETHANE)
- CAS:119018-30-3
- MF:C18H23N3O6S
- Structure:
- Chemical Name:Trimethoprim Related Compound B (25 mg) (2,4-diaminopyrimidin-5-yl)(3,4,5-trimethoxyphenyl)methanone) (AS)
- CAS:30806-86-1
- MF:C14H16N4O4
- Structure:
- Chemical Name:ChlorproMazine Sulfoxide
- CAS:969-99-3
- MF:C17H19ClN2OS
- Structure:
- Chemical Name:INSULIN LISPRO (5.97 MG)
- CAS:133107-64-9
- MF:C257H383N65O77S6
- Chemical Name:Fosinopril Related Compound B
- CAS:
- MF:
- Structure:
- Chemical Name:TRAMADOL IMPURITY E
- CAS:
- MF:C16H25NO2
- Structure:
- Chemical Name:FLUCONAZOLE IMPURITY B
- CAS:
- MF:C13H12F2N6O
- Structure:
- Chemical Name:Fosinopril Related Compound D
- CAS:1356353-41-7
- MF:C30H47NNaO7P
- Structure:
- Chemical Name:1H-Imidazol-5-amine,1-methyl-4-nitro-(9CI)
- CAS:4531-54-8
- MF:C4H6N4O2
- Structure:
- Chemical Name:Proguanil Related Compound C (25 mg) (1,5-bis(4-chlorophenyl)biguanide hydrochloride)
- CAS:13590-98-2
- MF:C14H14Cl3N5
- Structure:
- Chemical Name:1-[(2S)-3-BroMo-2-Methyl-1-oxopropyl]-L-proline
- CAS:80629-35-2
- MF:C9H14BrNO3
- Structure:
- Chemical Name:[2S-[1[R*(R*)],2α,3aβ,6aβ]]-1-[2-[[3-Cyclohexyl-1-(ethoxycarbonyl)propyl]aMino]-1-oxoprop
- CAS:99742-35-5
- MF:C23H38N2O5
- Structure:
- Chemical Name:N-Des(cyclohexylaMinocarbonyl) Glipizide
- CAS:1346600-54-1
- MF:C14H16N4O3S
- Structure:
- Chemical Name:Ticabesone Propionate
- CAS:73205-13-7
- MF:C25H32F2O5S
- Chemical Name:OXALIPLATIN IMPURITY B
- CAS:
- MF:
- Structure:
- Chemical Name:PYRANTEL IMPURITY A
- CAS:36700-38-6
- MF:C11H14N2S
- Structure:
- Chemical Name:estra-1,3,5(10)-triene-3,17beta-diol 17-butyrate
- CAS:18069-79-9
- MF:C22H30O3
- Structure:
- Chemical Name:N-Succinyl-L-tyrosine
- CAS:374816-32-7
- MF:C13H15NO6
- Structure:
- Chemical Name:rac N-Desisopropyl-N-ethyl Acebutolol
- CAS:441019-91-6
- MF:C17H26N2O4
- Structure:
- Chemical Name:Citalopram Related Compound H (25 mg) (1-(4'-fluorophenyl)-1-(3-dimethylaminopropyl)-5-bromophthalane hydrobromide)
- CAS:479065-02-6
- MF:C19H22Br2FNO
- Structure:
- Chemical Name:Propafenone Related Compound B ((2E)-1-[2-[(2RS)-2-hydroxy-3-(propylamino)propoxy]phenyl]-3-phenylprop-2-en-1-one)
- CAS:88308-22-9
- MF:C21H25NO3
- Structure:
- Chemical Name:2-[(1,1-DIMETHYLETHYL) AMINO]-1-[4-OH-3-(HYDROXYMETHYL)PHENYL]ETHAN-1-ONE
- CAS:156547-62-5
- MF:C13H19NO3
- Chemical Name:INSULIN ASPART
- CAS:116094-23-6
- MF:C256H381N65O79S6
- Structure:
- Chemical Name:METHYL 6-CHLORO-1H-BENZO[D]IMIDAZOL-2-YLCARBAMATE
- CAS:20367-38-8
- MF:C9H8ClN3O2
- Structure:
- Chemical Name:1-(3,4-dihydroxyphenyl)-2-[(1-methylethyl)amino] hydrochloride
- CAS:16899-81-3
- MF:C11H15NO3.ClH
- Structure:
- Chemical Name:Talampicillin hydrochloride
- CAS:39878-70-1
- MF:C24H23N3O6S.ClH
- Structure:
- Chemical Name:Citalopram Related Compound B
- CAS:1332724-03-4
- MF:C22H23FN2O6
- Chemical Name:Fosinopril Related Compound C
- CAS:
- MF:
- Structure:
- Chemical Name:[3-[2-(diMethylaMino)ethyl]-2-[[3-[2-(diMethylaMino)ethyl]-1H-indol-5-yl]Methyl]-1H-indol-5-yl]-N-MethylMethanesulfonaMide, succinate salt
- CAS:545338-89-4
- MF:C27H37N5O2S
- Structure:
- Chemical Name:Meta-Fexofenadine
- CAS:479035-75-1
- MF:C32H39NO4
- Structure:
- Chemical Name:4H-IMIDAZO[1,5-A][1,4]BENZODIAZEPINE-3-CARBOXYLIC ACID, 8-FLUORO-5,6-DIHYDRO-5-METHYL-6-OXO-
- CAS:84378-44-9
- MF:C13H10FN3O3
- Structure:
- Chemical Name:TINIDAZOLE RELATED COMPOUND B (20 MG) (1-(2-ETHYL-SULFONYLETHYL)-2-METHYL-4-NITROIMIDAZOLE)
- CAS:25459-12-5
- MF:C8H13N3O4S
- Structure:
- Chemical Name:DIAZEPAM RELATED COMPOUND B (25 MG) (3-AMINO-6-CHLORO-1-METHYL-4-PHENYLCARBOSTYRIL)
- CAS:5220-02-0
- MF:C16H13ClN2O
- Structure:
- Chemical Name:10-Formylfolic Acid
- CAS:134-05-4
- MF:C20H19N7O7
- Chemical Name:BUPIVACAINE IMPURITY B
- CAS:
- MF:
- Structure:
- Chemical Name:Dextranomer
- CAS:56087-11-7
- MF:C41H68O30X4
- Chemical Name:Fosinopril Related Compound E
- CAS:
- MF:
- Structure:
- Chemical Name:Platinum, (1,2-cyclohexanediamine-N,N')dinitrato-,(sp-4-2, 1R-trans)-
- CAS:66900-68-3
- MF:C6H12N4O6Pt
- Structure:
- Chemical Name:Lisinopril Cyclohexyl Analog
- CAS:1132650-67-9
- MF:C21H37N3O5
- Structure:
- Chemical Name:Proguanil Related Compound D (25 mg) (1,5-bis(1-methylethyl)biguanide hydrochloride)
- CAS:35708-82-8
- MF:C8H20ClN5
- Structure:
- Chemical Name:Propoxyphene Related Compound B (50 mg) (alpha-d-2-Acetoxy-4-dimethylamino-1,2-diphenyl-3-methylbutane)
- CAS:53990-51-5
- MF:C21H27NO2
- Structure:
- Chemical Name:Trospium Chloride Related Compound C
- CAS:3464-71-9
- MF:C16H15ClO2
- Structure:
- Chemical Name:cis-Atovaquone
- CAS:137732-39-9
- MF:C22H19ClO3
- Chemical Name:MAIZE POWDER MA 1.0 IRMM CERTIFIED RE-F
- CAS:68525-86-0
- MF:
- Structure:
- Chemical Name:KETAMINE RELATED COMPOUND A (50 MG) (1 -[(2-CHLOROPHENYL)(METHYLIMINO)METHYL]CYLCOPENTA-NOL)
- CAS:6740-87-0
- MF:C13H16ClNO
- Structure:
- Chemical Name:2-Naphthacenecarboxamide, 4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-, monohydrochloride, [4S-(4alpha,4aalpha,5alpha,5aalpha,6beta,12aalpha)]-
- CAS:41411-66-9
- MF:C22H25ClN2O8
- Structure:
- Chemical Name:Dalasetron (Mesylate hydrate)
- CAS:878143-33-0
- MF:C20H24N2O6S
- Structure:
- Chemical Name:GLUCOSAMINE SULFATE SODIUM CHLORIDE
- CAS:1296149-13-7
- MF:C6H15ClNNaO9S
- Structure:
- Chemical Name:Δ2-Cefuroxime Axetil
- CAS:123458-61-7
- MF:C20H22N4O10S
- Structure:
- Chemical Name:Flavoxate Related Compound C (20 mg) (3-Methylflavone-8-carboxylic acid ethyl ester)
- CAS:35888-94-9
- MF:C19H16O4
- Structure:
- Chemical Name:ALLOPURINOL IMPURITY A
- CAS:
- MF:C5H4N4O
- Chemical Name:FLUMAZENIL - REFERENCE SPECTRUM
- CAS:
- MF:
- Structure:
- Chemical Name:IFOSFAMIDE IMPURITY B
- CAS:241482-18-8
- MF:C10H24Cl2N2O7P2
- Structure:
- Chemical Name:TICLOPIDINE IMPURITY F
- CAS:62019-75-4
- MF:C14H14ClNS
- Structure:
- Chemical Name:3-[(2,2-dimethoxyethyl)thio]propene
- CAS:84522-35-0
- MF:C7H14O2S
- Structure:
- Chemical Name:(endo,anti)-(±)-3-(3-hydroxy-1-oxo-2-phenylpropoxy)-8-isopropyl-8-methyl-8-azoniabicyclo[3.2.1]octane bromide
- CAS:58073-59-9
- MF:C20H30BrNO3
- Structure:
- Chemical Name:(±)-N-[3-acetyl-4-[2-hydroxy-3-[(1-methylethyl)amino]propoxy]phenyl]acetamide
- CAS:22568-64-5
- MF:C16H24N2O4
- Chemical Name:Lamivudine Resolution Mixture B
- CAS:
- MF:
- Chemical Name:Vancomycin B with Monodechlorovancomycin
- CAS:
- MF:
- Structure:
- Chemical Name:137234-62-9
- CAS:137234-62-9
- MF:C16H14F3N5O
- Structure:
- Chemical Name:alpha-Methyl-4-biphenylacetic acid
- CAS:6341-72-6
- MF:C15H14O2
- Structure:
- Chemical Name:Zinc acexamate
- CAS:70020-71-2
- MF:C16H28N2O6Zn
- Structure:
- Chemical Name:(R)-2-(2-OXO-PYRROLIDIN-1-YL)-BUTYRAMIDE
- CAS:103765-01-1
- MF:C8H14N2O2
- Structure:
- Chemical Name:Olopatadine N-Oxide
- CAS:203188-31-2
- MF:C21H23NO4
- Structure:
- Chemical Name:INDINAVIR (100 MG)F0D3080.971MG/MG(AI)
- CAS:180683-37-8
- MF:C36H49N5O5
- Chemical Name:BUPIVACAINE IMPURITY E
- CAS:
- MF:
- Chemical Name:FENTICONAZOLE IMPURITY D
- CAS:
- MF:
- Structure:
- Chemical Name:TICARCILLIN IMPURITY A
- CAS:6933-26-2
- MF:C13H12OS
- Chemical Name:HYOSCINE BUTYLBROMIDE IMPURITY E
- CAS:
- MF:
- Structure:
- Chemical Name:CEFACLOR, DELTA-3-ISOMER (30 MG)
- CAS:152575-13-8
- MF:C15H14ClN3O4S
- Structure:
- Chemical Name:(9Z,12Z)-octadeca-9,12-dienoic acid, monoester with glycerol
- CAS:26545-74-4
- MF:C21H38O4
- Structure:
- Chemical Name:D-Phenylalanine, N-[[4-(1-methylethyl)cyclohexyl]carbonyl]-, cis-
- CAS:105816-06-6
- MF:C19H27NO3
- Structure:
- Chemical Name:N-isopropyltropinium
- CAS:58005-18-8
- MF:C11H22BrNO
- Structure:
- Chemical Name:Temazepam Related Compound G (15 mg) (7-Chloro-1,4-dimethyl-5-phenyl-4,5-dihydro-1H-1,4-benzodiazepine-2,3-dione)
- CAS:93329-92-1
- MF:C17H15ClN2O2
- Structure:
- Chemical Name:(2S)-1-[2-Methylpropanoyl]-pyrrolidine-2-carboxylic Acid
- CAS:23500-15-4
- MF:C9H15NO3
- Structure:
- Chemical Name:(S)-1-(3-((ethyl(methyl)carbamoyl)oxy)phenyl)-N,N-dimethylethanamine
- CAS:415973-05-6
- MF:C14H22N2O2
- Structure:
- Chemical Name:1-Methyl-2-(Methylthio)iMidazole
- CAS:14486-52-3
- MF:C5H8N2S
- Chemical Name:MetaMizole iMpurity E
- CAS:
- MF:
- Chemical Name:Abacavir Related CoMpound B
- CAS:
- MF:
- Chemical Name:GalantaMine HydrobroMide Related CoMpounds Mixture
- CAS:
- MF:
- Structure:
- Chemical Name:Ranitidine Resolution Mixture
- CAS:
- MF:C13H22N4O3S
- Structure:
- Chemical Name:Flutrimazole carbinol
- CAS:128092-72-8
- MF:C19H14F2O
- Chemical Name:WARFARIN RELATED COMPOUND A (50 MG) (3-(O-HYDROXYPHENYL)-5-PHENYL-2-CYCLOHEXEN-1-ONE)
- CAS:37209-23-7
- MF:
- Structure:
- Chemical Name:ERYTHROMYCIN B
- CAS:527-75-3
- MF:C37H67NO12
- Chemical Name:ENDOTOXIN STANDARD
- CAS:
- MF:
- Chemical Name:HYDROUS BENZOYL PEROXIDE - REFERENCE SPECTRUM
- CAS:
- MF:
- Chemical Name:HEPARIN LOW-MOLECULAR-MASS FOR CALIBRATION CRS
- CAS:
- MF:
- Chemical Name:OXYTOCIN/DESMOPRESSIN VALIDATION MIXTURE
- CAS:
- MF:
- Chemical Name:POTASSIUM CLAVULANATE - REFERENCE SPECTRUM
- CAS:
- MF:
- Chemical Name:OXALIPLATIN IMPURITY D
- CAS:
- MF:
- Structure:
- Chemical Name:ESTRADIOL FOR PEAK IDENTIFICATION
- CAS:
- MF:C18H24O2
- Structure:
- Chemical Name:6alpha-fluoro-11beta,21-dihydroxy-16alpha-methylpregna-1,4-diene-3,20-dione 21-pivalate
- CAS:29205-06-9
- MF:C27H37FO5
- Structure:
- Chemical Name:82999, 237NpO2 (V encapsulated)
- CAS:58670-16-9
- MF:NpO2