Building Blocks
1652 Results Found
Page 32 of 51
Building Blocks (Aliphatic/Aromatic/Heterocyclic/Carbohydrates)
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Product Name : 2-Methyl-4,6-bis(octylsulfanylmethyl)phenol | 110553-27-0
Code: JC-BB666 CAS: 110553-27-0 Chemical Formula: C25H44OS2 Molecular Weight: 424.75 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-Methyl-4,6-bis(octylsulfanylmethyl)phenol | 110553-27-0is useful as reference Impurity standard. 
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Product Name : Desfluoro Impurity; Benzo [c] [1,2] oxaborol-1 (3H)-ol; 1-Hydroxy-2,1-benzoxaborolane (CAS: 5735-41-1)
Code: JC-BB665 CAS: 5735-41-1 Chemical Formula: C7H7BO2 Molecular Weight: 133.94 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of Desfluoro Impurity; Benzo [c] [1,2] oxaborol-1 (3H)-ol; 1-Hydroxy-2,1-benzoxaborolane (CAS: 5735-41-1) is useful as reference Impurity standard. ![Desfluoro Impurity; Benzo [c] [1,2] oxaborol-1 (3H)-ol; 1-Hydroxy-2,1-benzoxaborolane (CAS: 5735-41-1)](https://drjcrbio.com/wp-content/uploads/JC-BB665-1-134x110.png)
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Product Name : Methyl Impurity: ; (4-fluoro-2-methylphenyl)boronic acid (CAS: 139911-29-8)
Code: JC-BB664 CAS: 139911-29-8 Chemical Formula: C7H8BFO2 Molecular Weight: 153.95 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of Methyl Impurity: ; (4-fluoro-2-methylphenyl)boronic acid (CAS: 139911-29-8) is useful as reference Impurity standard. 
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Product Name : 2-Ethyl-2-Hexanol ; 3-Methyl-3-heptanol (CAS: 5582-82-1)
Code: JC-BB663 CAS: 5582-82-1 Chemical Formula: C8H18O Molecular Weight: 130.23 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of 2-Ethyl-2-Hexanol ; 3-Methyl-3-heptanol (CAS: 5582-82-1) is useful as reference Impurity standard. 
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Product Name : 2-Methyl-4-(3-Aminophenyl)-3-Butyn-2-ol ; 4-(3-Aminophenyl)-2-methyl-3-butyn-2-ol ;69088-96-6
Code: JC-BB662 CAS: 69088-96-6 Chemical Formula:C11H13NO Molecular Weight:175.23 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-Methyl-4-(3-Aminophenyl)-3-Butyn-2-ol ; 4-(3-Aminophenyl)-2-methyl-3-butyn-2-ol ;69088-96-6is useful as reference Impurity standard. 
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Product Name : 2-Methyl-3-Butyn-2-ol ; 3-Methyl-1-butyn-3-ol| 115-19-5
Code: JC-BB661 CAS: 115-19-5 Chemical Formula: C5H8O Molecular Weight: 84.12 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-Methyl-3-Butyn-2-ol ; 3-Methyl-1-butyn-3-ol| 115-19-5is useful as reference Impurity standard. 
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Product Name : 2-(methoxymethyl)-6-methylpyridine ; 2-(methoxymethyl)-6-methylpyridine| 59303-12-7
Code: JC-BB660 CAS: 59303-12-7 Chemical Formula: C8H11NO Molecular Weight: 137.183 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-(methoxymethyl)-6-methylpyridine ; 2-(methoxymethyl)-6-methylpyridine| 59303-12-7is useful as reference Impurity standard. 
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Product Name : N,N′-Dihydroxy-2,3-butanediimine Dimethylglyoxime| 95-45-4
Code: JC-BB659 CAS: 95-45-4 Chemical Formula: C4H8N2O2 Molecular Weight: 116.12 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: N,N′-Dihydroxy-2,3-butanediimine Dimethylglyoxime| 95-45-4is useful as reference Impurity standard. 
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Product Name : Methyl methanesulphonate Impurity F Synonym:Methanesulfonic acid methyl ester | 66-27-3
Code: JC-BB658 CAS: 66-27-3 Chemical Formula: C2H6O3S Molecular Weight: 110.13 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Methyl methanesulphonate Impurity F Synonym:Methanesulfonic acid methyl ester | 66-27-3is useful as reference Impurity standard. 
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Product Name : Epinephrine Sulfonic Acid ; 3,4-Dihydroxy-α-[(methylamino)methyl]benzenemethanesulfonic Acid; 3,4-Dihydroxy-α-[(methylamino)methyl]-α-toluenesulfonic Acid | 26405-77-6
Code: JC-BB657 CAS: 26405-77-6 Chemical Formula: C₉H₁₃NO₅S Molecular Weight: 247.27 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Epinephrine Sulfonic Acid ; 3,4-Dihydroxy-α-[(methylamino)methyl]benzenemethanesulfonic Acid; 3,4-Dihydroxy-α-[(methylamino)methyl]-α-toluenesulfonic Acid | 26405-77-6is useful as reference Impurity standard. ![Epinephrine Sulfonic Acid ; 3,4-Dihydroxy-α-[(methylamino)methyl]benzenemethanesulfonic Acid; 3,4-Dihydroxy-α-[(methylamino)methyl]-α-toluenesulfonic Acid | 26405-77-6](https://drjcrbio.com/wp-content/uploads/26405-77-6.png)
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Product Name : Uracil derivative ; 6-Amino-1-methyl-2,4-pyrimidinedione; 1-Methyl-6-aminouracil; 6-Amino-1-methyl-1H-pyrimidine-2,4-dione; 6-Amino-1-methyluracil | 2434-53-9
Code: JC-BB656 CAS: 2434-53-9 Chemical Formula: C5H7N3O2 Molecular Weight: 141.13 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Uracil derivative ; 6-Amino-1-methyl-2,4-pyrimidinedione; 1-Methyl-6-aminouracil; 6-Amino-1-methyl-1H-pyrimidine-2,4-dione; 6-Amino-1-methyluracil | 2434-53-9is useful as reference Impurity standard. 
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Product Name : 3,4-Dihydro-1H-benzo[b]azepin-5(2H)-one ; 1,2,3,4-Tetrahydrobenzo[b]azepin-5-one| 1127-74-8
Code: JC-BB655 CAS: 1127-74-8 Chemical Formula: C10H11NO Molecular Weight: 161.2 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 3,4-Dihydro-1H-benzo[b]azepin-5(2H)-one ; 1,2,3,4-Tetrahydrobenzo[b]azepin-5-one| 1127-74-8is useful as reference Impurity standard. ![3,4-Dihydro-1H-benzo[b]azepin-5(2H)-one ; 1,2,3,4-Tetrahydrobenzo[b]azepin-5-one| 1127-74-8](https://drjcrbio.com/wp-content/uploads/1127-74-8.png)
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Product Name : Azure A ; 3-Amino-7-(dimethylamino)phenazathionium Chloride; 5-Chloro-3-dimethylamino-7-amino-5H-phenothiazine;Azure A Chloride; Azure Blue Cert; Azurea Dye; N,N-Dimethylthionine;| 531-53-3
Code: JC-BB654 CAS: 531-53-3 Chemical Formula: C₁₄H₁₄N₃S •Cl Molecular Weight: 256.35+(35.45) Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Azure A ; 3-Amino-7-(dimethylamino)phenazathionium Chloride; 5-Chloro-3-dimethylamino-7-amino-5H-phenothiazine;Azure A Chloride; Azure Blue Cert; Azurea Dye; N,N-Dimethylthionine;| 531-53-3is useful as reference Impurity standard. 
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Product Name : Ethyl 4-methylbenzenesulfinate/ p-Toluenesulfinic acid ethyl Ester ; 4-methyl-benzenesulfinic acid ethyl ester | 1858-86-2
Code: JC-BB653 CAS: 1858-86-2 Chemical Formula: C9H12O2S Molecular Weight: 184.26 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Ethyl 4-methylbenzenesulfinate/ p-Toluenesulfinic acid ethyl Ester ; 4-methyl-benzenesulfinic acid ethyl ester | 1858-86-2is useful as reference Impurity standard. 
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Product Name : Dimethyl Fumarate;Tetramethyl cyclobutane-1,2,3,4-tetracarboxylate | 14495-41-1
Code: JC-BB652 CAS: 14495-41-1 Chemical Formula: C₁₂H₁₆O₈ Molecular Weight: 288.25 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Dimethyl Fumarate;Tetramethyl cyclobutane-1,2,3,4-tetracarboxylate | 14495-41-1is useful as reference Impurity standard. 
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Product Name : Sodium 2-methyl-2-thiazoline-4-carboxylate ; Acetylcysteine Impurity 1 Sodium Salt;2-methyl-4,5-dihydro-1,3-thiazole-4-carboxylate;15058-19-2
Code: JC-BB651 CAS: 15058-19-2 Chemical Formula: C₅H₆NO₂SNa Molecular Weight: 167.16 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Sodium 2-methyl-2-thiazoline-4-carboxylate ; Acetylcysteine Impurity 1 Sodium Salt;2-methyl-4,5-dihydro-1,3-thiazole-4-carboxylate;15058-19-2is useful as reference Impurity standard. 
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Product Name : 2-Methyl mercapto phenothiazine- ;2-(Methylthio)-phenothiazine; 2-(Methylthio)phenothiazine; 2-Methylthio-10H-phenothiazine; 3-(Methylthio)phenothiazine | 7643-08-5
Code: JC-BB650 CAS: 7643-08-5 Chemical Formula: C13H11NS2 Molecular Weight: 245.36 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-Methyl mercapto phenothiazine- ;2-(Methylthio)-phenothiazine; 2-(Methylthio)phenothiazine; 2-Methylthio-10H-phenothiazine; 3-(Methylthio)phenothiazine | 7643-08-5is useful as reference Impurity standard. 
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Product Name : VINYL ACETATE ; VAc, Acetoxyethylene | 108-05-4
Code: JC-BB649 CAS: 108-05-4 Chemical Formula: C4H6O2 Molecular Weight: 86.09 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: VINYL ACETATE ; VAc, Acetoxyethylene | 108-05-4is useful as reference Impurity standard. 
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Product Name : 1-VINYLPYRROLIDIN-2ONE ;1-Vinyl-2-pyrrolidone, | 88-12-0
Code: JC-BB648 CAS: 88-12-0 Chemical Formula: C6H9NO Molecular Weight: 111.14 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 1-VINYLPYRROLIDIN-2ONE ;1-Vinyl-2-pyrrolidone, | 88-12-0is useful as reference Impurity standard. 
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Product Name : Rhein ;4,5-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid | 478-43-3
Code: JC-BB647 CAS: 478-43-3 Chemical Formula: C15H8O6 Molecular Weight: 284.22 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Rhein ;4,5-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid | 478-43-3is useful as reference Impurity standard. 
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Product Name : 1-(2,2-dimethoxyethyl)-5-methoxy-6-(methoxycarbonyl)-4-oxo-1,4-dihydropyridine-3-carboxylic acid | 1335210-23-5
Code: JC-BB646 CAS: 1335210-23-5 Chemical Formula: C₁₃H₁₇NO₈ Molecular Weight: 315.28 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 1-(2,2-dimethoxyethyl)-5-methoxy-6-(methoxycarbonyl)-4-oxo-1,4-dihydropyridine-3-carboxylic acid | 1335210-23-5is useful as reference Impurity standard. 
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Product Name : dimethyl 1-(2,2-dimethoxyethyl)-3-methoxy-4-oxo-1,4-dihydropyridine-2,5-dicarboxylate | 1646862-02-3
Code: JC-BB645 CAS: 1646862-02-3 Chemical Formula: C14H19NO8 Molecular Weight: 329.3 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: dimethyl 1-(2,2-dimethoxyethyl)-3-methoxy-4-oxo-1,4-dihydropyridine-2,5-dicarboxylate | 1646862-02-3is useful as reference Impurity standard. 
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Product Name : “(E)-methyl 2-(((2,2-dimethoxyethyl)amino)methylene)-4-methoxy-3-oxo butanoate |1335210-26-8”
Code: JC-BB644 CAS: 1335210-26-8 Chemical Formula: C11H19NO6 Molecular Weight: 261.27 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: "(E)-methyl 2-(((2,2-dimethoxyethyl)amino)methylene)-4-methoxy-3-oxo butanoate |1335210-26-8" 
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Product Name : 3 amino 2 piperidinone; (3S)-3-Amino-2-piperidinone; (3S)-3-Aminopiperidin-2-one; L-Orinithine Lactam | 34294-79-6
Code: JC-BB643 CAS: 34294-79-6 Chemical Formula: C5H10N2O Molecular Weight: 114.15 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 3 amino 2 piperidinone; (3S)-3-Amino-2-piperidinone; (3S)-3-Aminopiperidin-2-one; L-Orinithine Lactam | 34294-79-6is useful as reference Impurity standard. 
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Product Name : (E)-methyl 2-((dimethylamino)methylene)-4-methoxy-3-oxobutanoate| 127958-23-0
Code: JC-BB641 CAS: 127958-23-0 Chemical Formula: C₉H₁₅NO₄ Molecular Weight: 201.22 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: (E)-methyl 2-((dimethylamino)methylene)-4-methoxy-3-oxobutanoate| 127958-23-0is useful as reference Impurity standard. 
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Product Name : 1,1-dimethoxy-N,N-dimethylmethanamine; N,N-Dimethylformamide Dimethyl Acetal; 1,1-Dimethoxytrimethylamine | 4637-24-5
Code: JC-BB640 CAS: 4637-24-5 Chemical Formula: C₅H₁₃NO₂ Molecular Weight: 119.16 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 1,1-dimethoxy-N,N-dimethylmethanamine | 4637-24-5is useful as reference Impurity standard. 
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Product Name : Methyl 4-methoxy-3-oxobutanoate; 4-Methoxy-3-oxo-butyric Acid Methyl ester; 4-Methoxy-3-oxobutanoic Acid Methyl Ester; 4-Methoxyacetoacetic Acid Methyl Ester; Methyl 4-Methoxy-3-oxobutanoate; Methyl 4-Methoxy-3-oxobutyrate; Methyl 4-Methoxyacetoacetate; Methyl γ-Methoxyacetoacetate; γ-Methoxyacetoacetic Acid Methyl Ester (CAS: 41051-15-4)
Code: JC-BB639 CAS: 41051-15-4 Chemical Formula: C₆H₁₀O₄ Molecular Weight: 146.14 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Status: Limited Stock ; Contact: sales@drjcrbio.com Application: Manufacturer of Methyl 4-methoxy-3-oxobutanoate; 4-Methoxy-3-oxo-butyric Acid Methyl ester; 4-Methoxy-3-oxobutanoic Acid Methyl Ester; 4-Methoxyacetoacetic Acid Methyl Ester; Methyl 4-Methoxy-3-oxobutanoate; Methyl 4-Methoxy-3-oxobutyrate; Methyl 4-Methoxyacetoacetate; Methyl γ-Methoxyacetoacetate; γ-Methoxyacetoacetic Acid Methyl Ester (CAS: 41051-15-4)is useful as reference Impurity standard. 
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Product Name : Diethyl Sulfone ; Ethanesulfonyl-ethane| 597-35-3
Code: JC-BB638 CAS: 597-35-3 Chemical Formula: C₄H₁₀O₂S Molecular Weight: 122.19 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Diethyl Sulfone ; Ethanesulfonyl-ethane| 597-35-3is useful as reference Impurity standard. 
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Product Name : Bis(4-sulfobutyl)ether Disodium ; 4,4′-Oxybis-1-butanesulfonic acid disodium salt | 183278-30-0
Code: JC-BB637 CAS: 183278-30-0 Chemical Formula: C₈H₁₆Na₂O₇S₂ Molecular Weight: 334.32 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Bis(4-sulfobutyl)ether Disodium ; 4,4′-Oxybis-1-butanesulfonic acid disodium salt | 183278-30-0is useful as reference Impurity standard. 
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Product Name : 4-Hydroxybutane-1-sulfonic acid; 4-Hydroxy-1-butane Sulfonic Acid, 1-Butanesulfonic acid | 26978-64-3
Code: JC-BB636 CAS: 26978-64-3 Chemical Formula:C4H10O4S Molecular Weight: 154 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 4-Hydroxybutane-1-sulfonic acid; 4-Hydroxy-1-butane Sulfonic Acid, 1-Butanesulfonic acid | 26978-64-3is useful as reference Impurity standard. 
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Product Name : 2-Methyl-4-(3-Nitrophenyl)-3-butyn-2-ol; 2-Methyl-4-(3-Nitrophenyl)-3-butyn-2-ol | 33432-53-0
Code: JC-BB635 CAS: 33432-53-0 Chemical Formula: C11H11NO3 Molecular Weight: 205.21 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 2-Methyl-4-(3-Nitrophenyl)-3-butyn-2-ol; 2-Methyl-4-(3-Nitrophenyl)-3-butyn-2-ol | 33432-53-0is useful as reference Impurity standard. 
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Product Name : 1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile | 256376-65-5
Code: JC-BB634 CAS: 256376-65-5 Chemical Formula: C₁₄H₉FN₄ Molecular Weight: 252.25 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: 1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile | 256376-65-5is useful as reference Impurity standard. ![1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile | 256376-65-5](https://drjcrbio.com/wp-content/uploads/256376-65-5.png)
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Product Name : Chloroxylenol IH CRM; Chloroxylenol ; PCMX, 4-Chloro-3,5-xylenol, 4-Chloro-3,5-dimethylphenol, 4-Chloro-sym-m-xylenol |88-04-0
Code: JC-BB633 CAS: 88-04-0 Chemical Formula: C8H9OCl Molecular Weight: 156.61 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Chloroxylenol IH CRM; Chloroxylenol ; PCMX, 4-Chloro-3,5-xylenol, 4-Chloro-3,5-dimethylphenol, 4-Chloro-sym-m-xylenol |88-04-0is useful as reference Impurity standard. 
