Building Blocks
1639 Results Found
Page 38 of 50
Building Blocks (Aliphatic/Aromatic/Heterocyclic/Carbohydrates)
-
Free
Product Name : 2-(2-(2, 2, 2-trifluoroethoxy) phenoxy) ethyl methanesulfonate | 160969-03-9
Code: JC-BB448 CAS: 160969-03-9 Chemical Formula: C11H13F3O5S Molecular Weight: 314.28 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-(2-(2, 2, 2-trifluoroethoxy) phenoxy) ethyl methanesulfonate | 160969-03-9is useful as reference Impurity standard. 
-
Free
Product Name : 2,2,2-Trifluoroethyl p-Toluenesulfonate ; p-Toluenesulfonic Acid 2,2,2-Trifluoroethyl Ester 433-06-7
Code: 447 CAS: 433-06-7 Chemical Formula: C9H9F3O3S = Molecular Weight:254.22 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2,2,2-Trifluoroethyl p-Toluenesulfonate ; p-Toluenesulfonic Acid 2,2,2-Trifluoroethyl Ester 433-06-7is useful as reference Impurity standard. 
-
Free
Product Name : Piperazine;110-85-0
Code: JC-BB446 CAS: 110-85-0 Chemical Formula: C4H10N2 Molecular Weight: 86.14 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Piperazine |110-85-0is useful as reference Impurity standard. 
-
Free
Product Name : n-Methyl Piperazine |109-01-3
Code: JC-BB445 CAS: 109-01-3 Chemical Formula: C5H12N2 Molecular Weight: 100.17 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: n-Methyl Piperazine |109-01-3is useful as reference Impurity standard. 
-
Free
Product Name : 9-acetyl-1H-purin-6(9H)-one ; Acetyl hypoxanthine;Vidarabine Impurity 3;9-acetyl-1,9-dihydro-6H-Purin-6-one;1-(6-hydroxy-9H-purin-9-yl)ethanone;6H-Purin-6-one, 9-acetyl-1,9-dihydro-;Ribavirin Impurity 37 | 408531-05-5
Code: JC-BB444 CAS: 408531-05-5 Chemical Formula: C7H6N4O2 Molecular Weight: 178.15 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 9-acetyl-1H-purin-6(9H)-one ; Acetyl hypoxanthine;Vidarabine Impurity 3;9-acetyl-1,9-dihydro-6H-Purin-6-one;1-(6-hydroxy-9H-purin-9-yl)ethanone;6H-Purin-6-one, 9-acetyl-1,9-dihydro-;Ribavirin Impurity 37 | 408531-05-5is useful as reference Impurity standard. 
-
Free
Product Name : 4-Amino-N-methylbenzamide ; 4-Amino-N-methylbenzamide| 6274-22-2
Code: JC-BB443 CAS: 6274-22-2 Chemical Formula: C8H10N2O Molecular Weight: 150.18 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 4-Amino-N-methylbenzamide ; 4-Amino-N-methylbenzamide| 6274-22-2is useful as reference Impurity standard.
-
Free
Product Name : D-Risbose ; (2R,3R,4R)-2,3,4,5-Tetrahydroxypentanal,| 50-69-1
Code: JC-BB442 CAS: 50-69-1 Chemical Formula: C6H12O6 Molecular Weight: 180.16 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application:D-Risbose ;(2R,3R,4R)-2,3,4,5-Tetrahydroxypentanal,;50-69-1 is useful as reference Impurity standard.
-
Free
Product Name : Isopropyl Diphenylphosphoryl Pentanoate ; propan-2-yl 5-diphenylphosphorylpentanoate| 2088449-88-9
Code: JC-BB441 CAS: 2088449-88-9 Chemical Formula: C₂₀H₂₅O₃P Molecular Weight: 344.38 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Isopropyl Diphenylphosphoryl Pentanoate ; propan-2-yl 5-diphenylphosphorylpentanoate| 2088449-88-9is useful as reference Impurity standard.
-
Free
Product Name : 4-Chloroacetophenone ;4-Chloroacetophenone| 99-91-2
Code: JC-BB440 CAS: 99-91-2 Chemical Formula: C8H7ClO Molecular Weight: 154.59 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 4-Chloroacetophenone ;4-Chloroacetophenone| 99-91-2is useful as reference Impurity standard.
-
Free
Product Name : (2H)-yl]-5-[(acetyloxy)methyl]tetrahydrofuran-3,4- ; 4-N-2′,3′,5′-O-tetraacetylcytidine | 5040-18-6
Code: JC-BB439 CAS: 5040-18-6 Chemical Formula: C17H21N3O9 Molecular Weight: 411.37 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: (2H)-yl]-5-[(acetyloxy)methyl]tetrahydrofuran-3,4- ; 4-N-2',3',5'-O-tetraacetylcytidine | 5040-18-6is useful as reference Impurity standard.
-
Free
Product Name : Chloroacetic acid ; Monochloroacetic Acid | 79-11-8
Code: JC-BB438 CAS: 79-11-8 Chemical Formula: C2H3ClO2 Molecular Weight: 94.49 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Chloroacetic acid ; Monochloroacetic Acid | 79-11-8 is useful as reference Impurity standard.
-
Free
Product Name : 4-Chlorobutyryl Chloride/4635-59-0
Code: JC-BB437 CAS: 4635-59-0 Chemical Formula: C4H6Cl2O Molecular Weight: 140.99 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 4-Chlorobutyryl Chloride /4635-59-0 is useful as reference Impurity standard. 
-
Free
Product Name : 2,4-Dichloro-5-nitropyrimidine, ; 2,4-Dichloro-5-nitropyrimidine, | 49845-33-2
Code: JC-BB436 CAS: 49845-33-2 Chemical Formula: C4HCl2N3O2 Molecular Weight: 193.97 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2,4-Dichloro-5-nitropyrimidine, ; 2,4-Dichloro-5-nitropyrimidine, | 49845-33-2is useful as reference Impurity standard.
-
Free
Product Name : 4-Chloro-3-nitropyridine |13091-23-1
Code: JC-BB435 CAS: 13091-23-1 Chemical Formula: C5H3ClN2O2 Molecular Weight: 158.54 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 4-Chloro-3-nitropyridine |13091-23-1is useful as reference Impurity standard.
-
Free
Product Name : Methyl 2-piperidinecarboxylate ; methyl 2-piperidinecarboxylate| 41994-45-0
Code: JC-BB434 CAS: 41994-45-0 Chemical Formula: C7H13NO2 Molecular Weight: 143.18 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Methyl 2-piperidinecarboxylate ; methyl 2-piperidinecarboxylate| 41994-45-0is useful as reference Impurity standard.
-
Free
Product Name : H-DL-Pro-OMe.HCl ; Methyl Pyrrolidine-2-carboxylate Hydrochloride; 2-(Carbomethoxy)pyrrolidine Hydrochloride; methyl prolinate hydrochloride; |79397-50-5
Code: JC-BB433 CAS: 79397-50-5 Chemical Formula: C6H12ClNO2 Molecular Weight: 165.62 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: H-DL-Pro-OMe.HCl ; Methyl Pyrrolidine-2-carboxylate Hydrochloride; 2-(Carbomethoxy)pyrrolidine Hydrochloride; methyl prolinate hydrochloride; |79397-50-5 is useful as reference Impurity standard.
-
Free
Product Name : N-Methoxy-N-methyl acetamide ; N-Acetyl-N,O-dimethylhydroxylamine | 78191-00-1
Code: JC-BB431 CAS: 78191-00-1 Chemical Formula: C4H9NO2 Molecular Weight: 103.12 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: N-Methoxy-N-methyl acetamide ; N-Acetyl-N,O-dimethylhydroxylamine | 78191-00-1is useful as reference Impurity standard.
-
Free
Product Name : 3-Chloro-4-nitrophenol, | 491-11-2
Code: JC-BB430 CAS: 491-11-2 Chemical Formula: C6H4ClNO3 Molecular Weight: 173.55 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application:3-Chloro-4-nitrophenol, | 491-11-2 is useful as reference Impurity standard.
-
Free
Product Name : Ethyl cyano(hydroxyimino)cyanoacetate (Oxyma) ; Cyano(hydroxyimino)acetic Acid Ethyl Ester Ethyl Cyanoglyoxalate Oxime Oxyma |3849-21-6
Code: JC-BB429 CAS: 3849-21-6 Chemical Formula: C5H6N2O3 Molecular Weight: 142.11 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Ethyl cyano(hydroxyimino)cyanoacetate (Oxyma) ; Cyano(hydroxyimino)acetic Acid Ethyl Ester Ethyl Cyanoglyoxalate Oxime Oxyma |3849-21-6is useful as reference Impurity standard.
-
Free
Product Name : 2-Nitrobenzenesulfonyl chloride ; 2-Nitrobenzenesulfonyl chloride ; o-Ns-Cl |1694-92-4
Code: JC-BB428 CAS: 1694-92-4 Chemical Formula: C6H4ClNO4S Molecular Weight: 221.61 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-Nitrobenzenesulfonyl chloride ; 2-Nitrobenzenesulfonyl chloride ; o-Ns-Cl |1694-92-4 is useful as reference Impurity standard.
-
Free
Product Name : HATU ; 1-[Bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-Oxide Hexafluorophosphate | 148893-10-1
Code: JC-BB427 CAS: 148893-10-1 Chemical Formula: C10H15F6N6OP Molecular Weight: 380.24 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: HATU ; 1-[Bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-Oxide Hexafluorophosphate | 148893-10-1is useful as reference Impurity standard.
-
Free
Product Name : Di isopropyl azo-dicarboxylate ; Diisopropyl diazene-1,2-dicarboxylate ; Azodicarboxylic Acid Diisopropyl Ester | 2446-83-5
Code: JC-BB426 CAS: 2446-83-5 Chemical Formula: C8H14N2O4 Molecular Weight: 202.21 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Di isopropyl azo-dicarboxylate ; Diisopropyl diazene-1,2-dicarboxylate ; Azodicarboxylic Acid Diisopropyl Ester | 2446-83-5is useful as reference Impurity standard.
-
Free
Product Name : 2,3-O-Cyclohexylidene-D-glyceraldehyde ; (R)-1,4-Dioxaspiro[4.5]decane-2-carbaldehyde |78008-36-3
Code: JC-BB425 CAS: 78008-36-3 Chemical Formula: C9H14O3 Molecular Weight: 170.21 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2,3-O-Cyclohexylidene-D-glyceraldehyde ; (R)-1,4-Dioxaspiro[4.5]decane-2-carbaldehyde |78008-36-3is useful as reference Impurity standard.
-
Free
Product Name : 1,3-Bis(bromomethyl)benzene ; α,α’-Dibromo-m-xylene ; m-Xylylene Bromide m-Xylylene Dibromide 1,3-Bis(bromomethyl)benzene |626-15-3
Code: JC-BB424 CAS: 626-15-3 Chemical Formula: C8H8Br2 Molecular Weight: 263.96 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application:1,3-Bis(bromomethyl)benzene ; α,α'-Dibromo-m-xylene ; m-Xylylene Bromide m-Xylylene Dibromide 1,3-Bis(bromomethyl)benzene |626-15-3 is useful as reference Impurity standard.
-
Free
Product Name : Methyl 2-methoxy-5-sulfamoylbenzoate, ; 5-(Aminosulfonyl)-2-methoxybenzoic Acid Methyl Ester Methyl 2-Methoxy-5-sulfamoylbenzoate 2-Methoxy-5-sulfamoylbenzoic Acid Methyl Ester | 33045-52-2
Code: JC-BB423 CAS: 33045-52-2 Chemical Formula: C9H11NO5S Molecular Weight: 245.25 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Methyl 2-methoxy-5-sulfamoylbenzoate, ; 5-(Aminosulfonyl)-2-methoxybenzoic Acid Methyl Ester Methyl 2-Methoxy-5-sulfamoylbenzoate 2-Methoxy-5-sulfamoylbenzoic Acid Methyl Ester | 33045-52-2is useful as reference Impurity standard.
-
Free
Product Name : Ethyl 2-methoxy-5-sulfamoylbenzoateSulpiride EP impurity C ; | 33045-53-3
Code: JC-BB422 CAS: 33045-53-3 Chemical Formula: Molecular Weight: 259.27 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Ethyl 2-methoxy-5-sulfamoylbenzoateSulpiride EP impurity C ; | 33045-53-3is useful as reference Impurity standard.
-
Free
Product Name : 2-Methoxy-5-sulfamoylbenzoic ; 2-Methoxy-5-sulfamidobenzoic Acid; 2-Methoxy-5-sulfonamidobenzoic Acid; 5-(Aminosulfonyl)-2-methoxybenzoic Acid; 5-Sulfamoyl-o-anisic Acid; Sulpiride impurity D | 22117-85-7
Code: JC-BB421 CAS: 22117-85-7 Chemical Formula: C₈H₉NO₅S Molecular Weight: 231.23 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-Methoxy-5-sulfamoylbenzoic ; 2-Methoxy-5-sulfamidobenzoic Acid; 2-Methoxy-5-sulfonamidobenzoic Acid; 5-(Aminosulfonyl)-2-methoxybenzoic Acid; 5-Sulfamoyl-o-anisic Acid; Sulpiride impurity D | 22117-85-7is useful as reference Impurity standard.
-
Free
Product Name : 2-(Aminomethyl)-1-ethylpyrrolidine ; Isopropyl para toluene sulfonate | 26116-12-1
Code: JC-BB420 CAS: 26116-12-1 Chemical Formula: C7H16N2 Molecular Weight: 128.22 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-(Aminomethyl)-1-ethylpyrrolidine ; Isopropyl para toluene sulfonate | 26116-12-1is useful as reference Impurity standard.
-
Free
Product Name : Para Toluene sulfonic acid ethyl ester ; Ethyl para toluene sulfonate | 80-40-0
Code: JC-BB418 CAS: 80-40-0 Chemical Formula: C9H12O3S Molecular Weight: 200.25 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Para Toluene sulfonic acid ethyl ester ; Ethyl para toluene sulfonate | 80-40-0is useful as reference Impurity standard. 
-
Free
Product Name : Para Toluene sulfonic acid Methyl ester; Methyl para toluene sulfonate | 80-48-8
Code: JC-BB417 CAS: 80-48-8 Chemical Formula: C8H10O3S Molecular Weight: 186.23 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Para Toluene sulfonic acid Methyl ester; Methyl para toluene sulfonate | 80-48-8is useful as reference Impurity standard.
-
Free
Product Name : Benzene sulfonic acid isopropyl ester ; Isopropyl benzene sulfonate | 6214-18-2
Code: JC-BB416 CAS: 6214-18-2 Chemical Formula: C9H12O3S Molecular Weight: 200.25 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Benzene sulfonic acid isopropyl ester ; Isopropyl benzene sulfonate | 6214-18-2is useful as reference Impurity standard.
-
Free
Product Name : Benzene sulfonic acid Ethyl ester/515-46-8
Code: JC-BB415 CAS: 515-46-8 Chemical Formula: C8H10O3S Molecular Weight: 186.23 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Benzene sulfonic acid Ethyl ester ; Ethyl benzene sulfonate ; Ethyl phenylsulfonate, NSC 3217, Benzenesulfonic acid ethyl ester | 515-46-8is useful as reference Impurity standard. 
-
Free
Product Name : 4-methyl-2-n-propyl-1H-benzimidazole-6-carboxylic acid ; 7-Methyl-2-propyl-1H-benzimidazole-5-carboxylic Acid; Telmisartan Benzimidazole Acid Impurity |152628-03-0
Code:JC-BB413 CAS: 152628-03-0 Chemical Formula: C₁₂H₁₄N₂O₂ Molecular Weight: 218.25 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 4-methyl-2-n-propyl-1H-benzimidazole-6-carboxylic acid ; 7-Methyl-2-propyl-1H-benzimidazole-5-carboxylic Acid; Telmisartan Benzimidazole Acid Impurity |152628-03-0is useful as reference Impurity standard.
