Building Blocks
1772 Results Found
Page 43 of 54
Building Blocks (Aliphatic/Aromatic/Heterocyclic/Carbohydrates)
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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. 
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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.
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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.
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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.
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Product Name : 1,3-Bis(bromomethyl)benzene; α,α’-Dibromo-m-xylene; m-Xylylene Bromide m-Xylylene Dibromide 1,3-Bis(bromomethyl)benzene (CAS: 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 Status: Limited Stock; Contact: sales@drjcrbio.com Application: Manufacturer of 1,3-Bis(bromomethyl)benzene; α,α'-Dibromo-m-xylene; m-Xylylene Bromide m-Xylylene Dibromide 1,3-Bis(bromomethyl)benzene (CAS: 626-15-3) is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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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.
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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.
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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.
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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. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption.
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Product Name : Para Toluene sulfonic acid ethyl ester; Ethyl para toluene sulfonate; Ethyl-4-methyl benzene sulfonate (CAS: 80-40-0)
Code: JC-BB418 CAS: 80-40-0 Chemical Formula: C9H12O3S Molecular Weight: 200.25 Category: Building Blocks; Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of Para Toluene sulfonic acid ethyl ester; Ethyl para toluene sulfonate; Ethyl-4-methyl benzene sulfonate (CAS: 80-40-0) is useful as reference Impurity standard. 
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Product Name : Para Toluene sulfonic acid Methyl ester; Methyl para toluene sulfonate (CAS: 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 Status: Limited Stock; Contact: sales@drjcrbio.com Application: Manufacturer of Para Toluene sulfonic acid Methyl ester; Methyl para toluene sulfonate (CAS: 80-48-8) is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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Product Name : Benzene sulfonic acid isopropyl ester; Isopropyl benzene sulfonate (CAS: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 Status: Limited Stock; Contact: sales@drjcrbio.com Application: Manufacturer of Benzene sulfonic acid isopropyl ester; Isopropyl benzene sulfonate (CAS:6214-18-2) is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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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 Status: Limited Stock; Contact: sales@drjcrbio.com 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. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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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.
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Product Name : Methyl-4-methyl-2-propyl-1H-benzo[d] imidazole-6-carboxylic acid |152628-00-7
Code: JC-BB412 CAS: 152628-00-7 Chemical Formula: C13H16N2O2 Molecular Weight: 232.28 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Methyl-4-methyl-2-propyl-1H-benzo[d] imidazole-6-carboxylic acid |152628-00-7is useful as reference Impurity standard.
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Product Name : Methyl-3-amino-4-butyramido-5-methyl benzoate ; Telmisartan Impurity | 675882-71-0
Code: JC-BB411 CAS: 675882-71-0 Chemical Formula: C13H18N2O3 Molecular Weight: 250.29 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Methyl-3-amino-4-butyramido-5-methyl benzoate ; Telmisartan Impurity | 675882-71-0is useful as reference Impurity standard.
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Product Name : 4-Nitro 2,3,5 Trimethyl pyridine N-oxide ; 2,3,5-Trimethyl-4-nitropyridine 1-Oxide | 86604-79-7
Code: JC-BB410 CAS: 86604-79-7 Chemical Formula: C8H10N2O3 Molecular Weight: 182.18 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 4-Nitro 2,3,5 Trimethyl pyridine N-oxide ; 2,3,5-Trimethyl-4-nitropyridine 1-Oxide | 86604-79-7is useful as reference Impurity standard.
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Product Name : 2,3,5-Trimethyl pyridine N-oxide ; 2,3,5-Trimethyl pyridine N-oxide | 74409-42-0
Code: JC-BB409 CAS: 74409-42-0 Chemical Formula: C8H11NO Molecular Weight: 137.18 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2,3,5-Trimethyl pyridine N-oxide ; 2,3,5-Trimethyl pyridine N-oxide | 74409-42-0is useful as reference Impurity standard.
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Product Name : [(3R,3aS,6aR)-Hydroxyhexahydrofuro[2,3-b]furanyl Succinimidyl Carbonate; 5-Dioxopyrrolidin-1-yl ((3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl) carbonate (CAS: 253265-97-3)
Code: JC-BB408 CAS: 253265-97 -3 Chemical Formula: C11H13NO7 Molecular Weight: 271.22 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock; Contact: sales@drjcrbio.com Application: Manufacturer of [(3R,3aS,6aR)-Hydroxyhexahydrofuro[2,3-b]furanyl Succinimidyl Carbonate; 5-Dioxopyrrolidin-1-yl ((3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl) carbonate (CAS: 253265-97-3) is useful as reference Impurity standard. ![[(3R,3aS,6aR)-Hydroxyhexahydrofuro[2,3-b]furanyl Succinimidyl Carbonate; 5-Dioxopyrrolidin-1-yl ((3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl) carbonate (CAS: 253265-97-3)](https://drjcrbio.com/wp-content/uploads/JC-BB408-1.png)
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Product Name : Diethyl Chloromalonate | 14064-10-9
Code: JC-BB406 CAS: 14064-10-9 Chemical Formula: Molecular Weight: Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Diethyl Chloromalonate | 14064-10-9is useful as reference Impurity standard.
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Product Name : JC-BB405
Code: JC-BB405 CAS: Chemical Formula: Molecular Weight: Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application:
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Product Name : 3-bromo-6-methoxy-8-nitro quinilone; Quinoline (CAS: 95836-48-9)
Code: JC-BB404 CAS: 95836-48-9 Chemical Formula: C10H7BrN2O3 Molecular Weight: 283.08 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of 3-bromo-6-methoxy-8-nitro quinilone; Quinoline (CAS: 95836-48-9) is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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Product Name : 4-Nitro pyridine-N-oxide (CAS: 1124-33-0)
Code: JC-BB403 CAS: 1124-33-0 Chemical Formula: C5H4N2O3 Molecular Weight: 104.10 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of 4-Nitro pyridine-N-oxide (CAS: 1124-33-0) is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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Product Name : 2-Nitro-5-Bromo pyridine ; 5-Bromo-2-nitropyridine; 3-Bromo-6-nitropyridine |39856-50-3
Code: JC-BB402 CAS: 39856-50-3 Chemical Formula: C₅H₃BrN₂O₂ Molecular Weight: 202.99 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-Nitro-5-Bromo pyridine ; 5-Bromo-2-nitropyridine; 3-Bromo-6-nitropyridine |39856-50-3is useful as reference Impurity standard.
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Product Name : Glycosamine Peta Acetate
Code: JC-BB401 CAS: Chemical Formula: Molecular Weight: Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Glycosamine Peta Acetateis useful as reference Impurity standard.
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Product Name : 2-Acetamido-5-nitropyridine (CAS: 5093-64-1)
Code: JC-BB400 CAS: 5093-64-1 Chemical Formula: C7H7N3O3 Molecular Weight: 181.15 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of 2-Acetamido-5-nitropyridine (CAS: 5093-64-1) is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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Product Name : 2-Bromo-5-nitropyridine (CAS: 4487-59-6)
Code: JC-BB399 CAS: 4487-59-6 Chemical Formula: C5H3BrN2O2 Molecular Weight: 202.99 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of 2-Bromo-5-nitropyridine (CAS: 4487-59-6) is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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Product Name : D-Ribitol; Ribitol; Adonite (CAS: 488-81-3)
Code: JC-BB398 CAS: 488-81-3 Chemical Formula: C5H12O5 Molecular Weight: 152.15 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of D-Ribitol; Ribitol; Adonite (CAS: 488-81-3) is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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Product Name : 4,6-Benzylidone -D-Glucose
Code: JC-BB397 CAS: Chemical Formula: Molecular Weight: Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 4,6-Benzylidone -D-Glucoseis useful as reference Impurity standard.
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Product Name : 7-methyl tetra hydro naphthalen -2-carboxilic acid
Code: JC-BB396 CAS: Chemical Formula: Molecular Weight: Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 7-methyl tetra hydro naphthalen -2-carboxilic acidis useful as reference Impurity standard.
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Product Name : 5-Chloro-2-nitro pyridine Bs -1
Code: JC-BB395 CAS: Chemical Formula: Molecular Weight: Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 5-Chloro-2-nitro pyridine Bs -1is useful as reference Impurity standard.
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Product Name : 2-Amino-3-5-dibromo 4-methyl Pyridine (CAS: 3430-29-3)
Code: JC-BB394 CAS: 3430-29-3 Chemical Formula: C6H6N2Br2 Molecular Weight: 265.93 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of 2-Amino-3-5-dibromo 4-methyl Pyridine (CAS: 3430-29-3)is useful as reference Impurity standard. Note: The compounds strictly supplied only for R&D /AR&D purpose, not for human/animal consumption. 
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Product Name : Isonicatine Acid -N-oxide
Code: JC-BB393 CAS: Chemical Formula: Molecular Weight: Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Isonicatine Acid -N-oxideis useful as reference Impurity standard.
