KSM'S
65 Results Found
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KSM'S API Reference standards and its EP Impurities, USP Impurities, non pharmacopeial Impurities, listed below & also offered custom synthesis for unknown Impurities. If require any contact info@drjcrbio.com, sales@drjcrbio.com
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Product Name : Darifenacin 5-Carboxymethyl Impurity/69999-16-2
Code: JCKSM-55 CAS:69999-16-2 Chemical Formula: C10H10O3 Molecular Weight: 178.2 Category: KSM'S/Intermediates Literature: Application: Darifenacin 5-Carboxymethyl Impurity/69999-16-2 is useful as reference Impurity standard. 
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Product Name : Ethyl 3,5-dimethyl-1H-pyrrole-2-carboxylate/2199-44-2
Code: JCKSM-54 CAS:2199-44-2 Chemical Formula: C9H13NO2 Molecular Weight: 167.21 Category: KSM'S/Intermediates Literature: Application: Ethyl 3,5-dimethyl-1H-pyrrole-2-carboxylate/2199-44-2 is useful as reference Impurity standard. 
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Product Name : 4-Chloro-2-acetylthiophene/34730-20-6
Code: JCKSM-53 CAS:34730-20-6 Chemical Formula: C6H5ClOS Molecular Weight: 160.62 Category: KSM'S/Intermediates Literature: Application: 4-Chloro-2-acetylthiophene/34730-20-6 is useful as reference Impurity standard. 
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Product Name : 2-Fluoro-5-nitrobenzonitrile/17417-09-3
Code: JCKSM-62 CAS:17417-09-3 Chemical Formula:C7H3FN2O2 Molecular Weight:166.11 Category: KSM'S/Intermediates Literature: Application: 2-Fluoro-5-nitrobenzonitrile/17417-09-3 is useful as reference Impurity standard. 
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Product Name : Diethyl (hydroxyimino)malonate/6829-41-0
Code: JCKSM-61 CAS:6829-41-0 Chemical Formula:C7H11NO5 Molecular Weight:189.17 Category: KSM'S/Intermediates Literature: Application: Diethyl (hydroxyimino)malonate/6829-41-0 is useful as reference Impurity standard. 
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Product Name : N-Formyl Nebivolol
Code: JCNBV-39 CAS: NA Chemical Formula: C23H25F2NO5 Molecular Weight:433.5 Category: Nebivolol Reference Standards/ Nebivolol API Drug Metabolites/Nebivolol EP Impurities/Nebivolol USP Impurities Literature: Application: N-Formyl Nebivolol is useful as reference Impurity standard 
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Product Name : 5-Amino-2-fluorobenzonitrile/53312-81-5
Code: BB1477 CAS: 53312-81-5 Chemical Formula:C7H5FN2 Molecular Weight:136.13 Category: Building blocks Literature: Application: 5-Amino-2-fluorobenzonitrile/53312-81-5 is useful as reference Impurity standard. 
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Product Name : Ethyl 3,5-dimethyl-1H-pyrrole-2-carboxylate/2199-44-2
Code: BB1476 CAS: 2199-44-2 Chemical Formula: 2199-44-2 Molecular Weight: 167.21 Category: Building blocks Literature: Application: Ethyl 3,5-dimethyl-1H-pyrrole-2-carboxylate/2199-44-2 is useful as reference Impurity standard. 
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Product Name : Methyl 2-hydroxy-3-methylbutanoate/24347-63-5
Code: JCKSM-57 CAS: 24347-63-5 Chemical Formula: C6H12O3 Molecular Weight: 132.16 Category: KSM'S/Intermediates Literature: Application: Methyl 2-hydroxy-3-methylbutanoate/24347-63-5 is useful as reference Impurity standard. 
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Product Name : (S)-2-Hydroxy-3-methylbutanoic acid/17407-55-5
Code: JCKSM-56 CAS: 17407-55-5 Chemical Formula: C5H10O3 Molecular Weight: 118.13 Category: KSM'S/Intermediates Literature: Application: (S)-2-Hydroxy-3-methylbutanoic acid/17407-55-5 is useful as reference Impurity standard. 
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Product Name : 2-Aminoethyl Hydrogen Sulfate/926-39-6
Code: JCKSM-55 CAS: 926-39-6 Chemical Formula:C2H7NO4S Molecular Weight: 141.14 Category: KSM'S/Intermediates Literature: Application: 2-Aminoethyl Hydrogen Sulfate/926-39-6 is useful as reference Impurity standard. 
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Product Name : Ethanol, 2-[2-(2-hydroxyethoxy)ethoxy]-, 1-(4-Methylbenzenesulfonate)/77544-68-4
Code: JCKSM-54 CAS: 77544-68-4 Chemical Formula:C13H20O6S Molecular Weight:304.36 Category: KSM'S/Intermediates Literature: Application: Ethanol, 2-[2-(2-hydroxyethoxy)ethoxy]-, 1-(4-Methylbenzenesulfonate)/77544-68-4 is useful as reference Impurity standard. ![Ethanol, 2-[2-(2-hydroxyethoxy)ethoxy]-, 1-(4-Methylbenzenesulfonate)/77544-68-4](https://drjcrbio.com/wp-content/uploads/77544-68-4.png)
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Product Name : DIBUTYL PHTHALATE | 84-74-2
Code: JCKSM-53 CAS: 84-74-2 Chemical Formula:C16H22O4 Molecular Weight:278.35 Category: KSM'S/Intermediates Literature: Application: DIBUTYL PHTHALATE | 84-74-2is useful as reference Impurity standard. 
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Product Name : Dibutyl isophthalate /3126-90-7
Code: JCKSM-52 CAS:3126-90-7 Chemical Formula: C16H22O4 Molecular Weight: 278.34 Category: KSM'S/Intermediates Synonyms: Dibutyl isophthalate /3126-90-7 Application: Dibutyl isophthalate /3126-90-7CRO, CDMO's, further 
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Product Name : Dibutyl Terephthalate/1962-75-0
Code: JCKSM-51 CAS: 1962-75-0 Chemical Formula: C16H22O4 Molecular Weight: 278.35 Category: KSM'S/Intermediates Synonyms: Dibutyl Terephthalate/1962-75-0 Application: Dibutyl Terephthalate/1962-75-0 CRO, CDMO's, further 
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Product Name : Dapagliflozin Impurity 40;29643-62-7
Code: JCKSM-50 CAS:29643-62-7 Chemical Formula: 29643-62-7 Molecular Weight: 150.2 Category: KSM'S/Intermediates Literature: Application: Dapagliflozin Impurity 40;Ethoxy-2-ethylbenzene;29643-62-7 is useful as reference Impurity standard. 
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Product Name : Butanedioic acid;33109-58-9
Code: JCKSM-49 CAS: 33109-58-9 Chemical Formula:C16H12N2O8 Molecular Weight:360.28 Category: KSM'S/Intermediates Literature: Application: Bis-(4-nitrophenyl)succinate;Butanedioic acid, 1,4-bis(4-nitrophenyl) ester;33109-58-9 is useful as reference Impurity standard. 
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Product Name : 1-Bromo-4-phenyl-2-butanone|31984-10-8
Code: JCKSM-48 CAS: 31984-10-8 Chemical Formula:C10H11BrO Molecular Weight:227.1 Category: KSM'S/Intermediates Literature: Application: 1-Bromo-4-phenyl-2-butanone|31984-10-8 is useful as reference Impurity standard. 
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Product Name : 2’, 3’, 4’-Trimethoxy acetophenone|13909-73-4
Code: JCKSM-47 CAS: 13909-73-4 Chemical Formula:C11H14O4 Molecular Weight:210.23 Category: KSM'S/Intermediates Literature: Application: 2’, 3’, 4’-Trimethoxy acetophenone|13909-73-4 is useful as reference Impurity standard. 
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Product Name : 2’, 4’, 6’-Trimethoxyacetophenone|832-58-6
Code: JCKSM-46 CAS: 832-58-6 Chemical Formula:C11H14O4 Molecular Weight:210.23 Category: KSM'S/Intermediates Literature: Application: 2’, 4’, 6’-Trimethoxyacetophenone|832-58-6 is useful as reference Impurity standard. 
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Product Name : 2′,3′,4′-Trihydroxyacetophenone|528-21-2
Code: JCKSM-45 CAS: 528-21-2 Chemical Formula:C8H8O4 Molecular Weight:168.15 Category: KSM'S/Intermediates Literature: Application: 2',3',4'-Trihydroxyacetophenone|528-21-2 is useful as reference Impurity standard. 
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Product Name : 4’, 5’-Dimethyl-2’-hydroxyacetophenone|36436-65-4
Code: JCKSM-44 CAS: 36436-65-4 Chemical Formula:C10H12O2 Molecular Weight:164.2 Category: KSM'S/Intermediates Literature: Application: 4’, 5’-Dimethyl-2’-hydroxyacetophenone|36436-65-4 is useful as reference Impurity standard. 
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Product Name : 5’-Chloro-2’-hydroxy-3’-nitroacetophenone|84942-40-5
Code: JCKSM-43 CAS: 84942-40-5 Chemical Formula:C8H6ClNO4 Molecular Weight:215.59 Category: KSM'S/Intermediates Literature: Application: 5’-Chloro-2’-hydroxy-3’-nitroacetophenone|84942-40-5 is useful as reference Impurity standard. 
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Product Name : 5’-Chloro-2’-hydroxy-4’-methylacetophenone|28480-70-8
Code: JCKSM-42 CAS: 28480-70-8 Chemical Formula:C9H9ClO2 Molecular Weight:184.62 Category: KSM'S/Intermediates Literature: Application: 5’-Chloro-2’-hydroxy-4’-methylacetophenone|28480-70-8is useful as reference Impurity standard. 
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Product Name : 5’-Bromo-2’-hydroxy-3’-nitroacetophenone|70978-54-0
Code: JCKSM-41 CAS: 70978-54-0 Chemical Formula:C8H6BrNO4 Molecular Weight: 260.0 Category: KSM'S/Intermediates Literature: Application: 5’-Bromo-2’-hydroxy-3’-nitroacetophenone|70978-54-0 is useful as reference Impurity standard. 
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Product Name : 5’-Bromo-3’-chloro-2’-hydroxyacetophenone|59443-15-1
Code: JCKSM-40 CAS: 59443-15-1 Chemical Formula: Molecular Weight: Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: is useful as reference Impurity standard. 
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Product Name : N-Methyl-1-adamantylamine ;1-(Methylamino)adamantane | 3717-38-2
Code: JCKSM-39 CAS: 3717-38-2 Chemical Formula:C11H19N Molecular Weight:165.28 Category: KSM'S/Intermediats Literature: Application: N-Methyl-1-adamantylamine ;1-(Methylamino)adamantane | 3717-38-2 is useful as reference Impurity standard. 
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Product Name : 1-[3-(Dimethylamino)propyl]-3-ethylurea; N-[3-(Dimethylamino)propyl]-N’-ethylurea; 1-Ethyl-3-(3-dimethylaminopropyl)urea; EDC Urea |32897-26-0
Code: JCKSM-38 CAS: 32897-26-0 Chemical Formula:C8H19N3O Molecular Weight:173.26 Category: KSM'S/Intermediates Literature: Application: 1-[3-(Dimethylamino)propyl]-3-ethylurea; N-[3-(Dimethylamino)propyl]-N'-ethylurea; 1-Ethyl-3-(3-dimethylaminopropyl)urea; EDC Urea |32897-26-0 is useful as reference Impurity standard. ![1-[3-(Dimethylamino)propyl]-3-ethylurea; N-[3-(Dimethylamino)propyl]-N'-ethylurea; 1-Ethyl-3-(3-dimethylaminopropyl)urea; EDC Urea |32897-26-0](https://drjcrbio.com/wp-content/uploads/32897-26-0.png)
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Product Name : 2-(Bromomethyl)Tetrahydro-2 H-Pyran |34723-82-5
Code: JCKSM-37 CAS: 34723-82-5 Chemical Formula: C6H11BrO Molecular Weight: 179.05 Category: KSM'S/Intermediates Literature: Application: 2-(Bromomethyl)Tetrahydro-2 H-Pyran |34723-82-5 is useful as reference Impurity standard. 
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Product Name : Triethyl 1,3,5-Triazine-2,4,6-Tricarboxylate |898-22-6
Code: JCKSM-36 CAS: 898-22-6 Chemical Formula: C12H15N3O6 Molecular Weight: 297.26 Category: KSM'S/Intermediats Literature: Application: Triethyl 1,3,5-Triazine-2,4,6-Tricarboxylate |898-22-6 is useful as reference Impurity standard. 
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Product Name : 4-carboxybenzenesulfonyl azide; 4-(Azidosulfonyl)benzoic acid |17202-49-2
Code: JCKSM-35 CAS: 17202-49-2 Chemical Formula:C7H5N3O4S Molecular Weight:227.2 Category: KSM'S/Intermediates Literature: Application: 4-carboxybenzenesulfonyl azide; 4-(Azidosulfonyl)benzoic acid |17202-49-2 is useful as reference Impurity standard.
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Product Name : 4-(Chlorosulfonyl)benzoic Acid; p-(Chlorosulfonyl)benzoic Acid; 4-Carboxybenzenesulfonyl Chloride; 4-Carboxyphenylsulfonyl Chloride; p-Carboxybenzenesulfonyl Chloride |10130-89-9
Code: JCKSM-34 CAS: 10130-89-9 Chemical Formula:C7H5ClO4S Molecular Weight:220.63 Category: KSM'S/Intermediates Literature: Application: 4-(Chlorosulfonyl)benzoic Acid; p-(Chlorosulfonyl)benzoic Acid; 4-Carboxybenzenesulfonyl Chloride; 4-Carboxyphenylsulfonyl Chloride; p-Carboxybenzenesulfonyl Chloride |10130-89-9 is useful as reference Impurity standard. 
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Product Name : 1-(chloromethyl)-4-ethoxybenzene |6653-80-1
Code: JCKSM-33 CAS: 6653-80-1 Chemical Formula:C9H11OCl Molecular Weight:170.63 Category: KSM'S/Intermediates Literature: Application: 1-(chloromethyl)-4-ethoxybenzene |6653-80-1 is useful as reference Impurity standard. 
