KSM'S
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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 : Methyl 3-bromo-2-fluoro-4-methylbenzoate; Benzoic acid 3-bromo-2-fluoro-4-methyl-, methyl ester/1807043-92-0
Code: JCKSM-403 CAS: 1807043-92-0 Chemical Formula:C9H8BrFO2 Molecular Weight:247.06 Category: KSM'S/Intermediates Literature: Application:3-bromo-2-fluoro-4-methyl-, methyl ester/1807043-92-0 is useful as reference Impurity standard. 
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Product Name : 3-BROMO-2-FLUORO-4-METHYL-BENZOIC ACID;Benzoic acid, 3-bromo-2-fluoro-4-methyl/1427382-06-6
Code: JCKSM-402 CAS: 1427382-06-6 Chemical Formula:C8H6BrFO2 Molecular Weight:233.03 Category: KSM'S/Intermediates Literature: Application: 3-bromo-2-fluoro-4-methyl/1427382-06-6 is useful as reference Impurity standard. 
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Product Name : 2-Fluoro-3,4-dihydroxy-5-methoxybenzoic acid
Code: JCKSM-401 CAS: N/A Chemical Formula: C8H7FO5 Molecular Weight: 202.14 Category: KSM'S/Intermediates Literature: Application: 2-Fluoro-3,4-dihydroxy-5-methoxybenzoic acid is useful as reference Impurity standard. 
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Product Name : 2-Fluoro-3,4-dihydroxy-5-methoxybenzaldehyde
Code: JCKSM-400 CAS: N/A Chemical Formula: C8H7FO4 Molecular Weight: 186.14 Category: KSM'S/Intermediates Literature: Application: 2-Fluoro-3,4-dihydroxy-5-methoxybenzaldehyde is useful as reference Impurity standard. 
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Product Name : 2-Bromo-3,4-dihydroxy-5-methoxybenzaldehyde (CAS: 65144-12-9)
Code: JCKSM-399 CAS: 65144-12-9 Chemical Formula: C8H7BrO4 Molecular Weight: 247.045 Category: KSM'S/Intermediates Literature: Application: 2-Bromo-3,4-dihydroxy-5-methoxybenzaldehyde (CAS: 65144-12-9) is useful as reference Impurity standard. 
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Product Name : 2-((3-nitrophenyl)thio)ethan-1-ol (CAS: 13287-77-9)
Code: JCKSM-398 CAS: 13287-77-9 Chemical Formula: C8H9NO3S Molecular Weight: 199.23 Category: KSM'S/Intermediates Literature: Application: 2-((3-nitrophenyl)thio)ethan-1-ol (CAS: 13287-77-9) is useful as reference Impurity standard. 
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Product Name : N-(2-(3′,6′-bis(diethylamino)-3-oxospiro[isoindoline-1,9′-xanthen]-2-yl)ethyl)-2-chloronicotinamide
Code: JCKSM-397 CAS: N/A Chemical Formula: C36H38N5O3Cl Molecular Weight: 624.13 Category: KSM'S/Intermediates Literature: Application: N-(2-(3',6'-bis(diethylamino)-3-oxospiro[isoindoline-1,9'-xanthen]-2-yl)ethyl)-2-chloronicotinamide is useful as reference Impurity standard. ![N-(2-(3',6'-bis(diethylamino)-3-oxospiro[isoindoline-1,9'-xanthen]-2-yl)ethyl)-2-chloronicotinamide](https://drjcrbio.com/wp-content/uploads/KSM-397-1.png)
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Product Name : 2,5-Di-(p-methoxyphenyl)-3,6-dibromoquinone (CAS: 195532-11-7)
Code: JCKSM-396 CAS: 195532-11-7 Chemical Formula: C20H14Br2O4 Molecular Weight: 478.137 Category: KSM'S/Intermediates Literature: Application: 2,5-Di-(p-methoxyphenyl)-3,6-dibromoquinone (CAS: 195532-11-7)is useful as reference Impurity standard. 
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Product Name : 2,5-Di(p-methoxyphenyl) -hydroquinone
Code: JCKSM-395 CAS: N/A Chemical Formula: C20H19O4 Molecular Weight: 316.236 Category: KSM'S/Intermediates Literature: Application: 2,5-Di(p-methoxyphenyl) -hydroquinone is useful as reference Impurity standard. 
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Product Name : 4-((4-Aminopyrimidin-2-yl)methoxy)benzonitrile
Code: JCKSM-394 CAS: N/A Chemical Formula: C12H10N4O Molecular Weight: 226.238 Category: KSM'S/Intermediates Literature: Application: 4-((4-Aminopyrimidin-2-yl)methoxy)benzonitrile is useful as reference Impurity standard. 
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Product Name : 2,5-Diphenyl-3,6-dihydroxyquinone (CAS: 548-59-4)
Code: JCKSM-393 CAS: 548-59-4 Chemical Formula: C18H12O4 Molecular Weight: 292.3 Category: KSM'S/Intermediates Literature: Application: 2,5-Diphenyl-3,6-dihydroxyquinone (CAS: 548-59-4) is useful as reference Impurity standard. 
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Product Name : 2,5-Diphenyl-3,6-dibromoquinone (CAS: 28293-39-2)
Code: JCKSM-392 CAS: 28293-39-2 Chemical Formula: C18H10Br2O2 Molecular Weight: 418.08 Category: KSM'S/Intermediates Literature: Application: 2,5-Diphenyl-3,6-dibromoquinone (CAS: 28293-39-2) is useful as reference Impurity standard. 
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Product Name : 2,5-Diphenyl-3,6-dibromohydroquinone (CAS: 857545-83-6)
Code: JCKSM-391 CAS: 857545-83-6 Chemical Formula: C18H12Br2O2 Molecular Weight: 420 Category: KSM'S/Intermediates Literature: Application: 2,5-Diphenyl-3,6-dibromohydroquinone (CAS: 857545-83-6) is useful as reference Impurity standard. 
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Product Name : N-(4-((4-aminopyrimidin-2-yl)methoxy)benzyl)-2,2,2-trifluoroacetamide
Code: JCKSM-390 CAS: N/A Chemical Formula: C14N4F3O2H13 Molecular Weight: 323 Category: KSM'S/Intermediates Literature: Application: N-(4-((4-aminopyrimidin-2-yl)methoxy)benzyl)-2,2,2-trifluoroacetamide is useful as reference Impurity standard. 
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Product Name : 2,5-Diphenylhydroquinone; 2,5-Di(phenyl)benzene-1,4-diol;1,1′:4′,1”-Terbenzene-2′,5′-diol;1,1′:4′,1”-Terphenyl]-2′,5′-diol;[1,1′:4′,1”-Terphenyl]-2′,5′-diol (CAS: 5422-91-3)
Code: JCKSM-389 CAS: 5422-91-3 Chemical Formula: C18H14O2 Molecular Weight: 262.3 Category: KSM'S/Intermediates Literature: Application: 2,5-Diphenylhydroquinone; 2,5-Di(phenyl)benzene-1,4-diol;1,1':4',1''-Terbenzene-2',5'-diol;1,1':4',1''-Terphenyl]-2',5'-diol;[1,1':4',1''-Terphenyl]-2',5'-diol (CAS: 5422-91-3) is useful as reference Impurity standard. ![2,5-Diphenylhydroquinone; 2,5-Di(phenyl)benzene-1,4-diol;1,1':4',1''-Terbenzene-2',5'-diol;1,1':4',1''-Terphenyl]-2',5'-diol;[1,1':4',1''-Terphenyl]-2',5'-diol (CAS: 5422-91-3)](https://drjcrbio.com/wp-content/uploads/KSM-389.png)
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Product Name : 2,5-Diphenyl-1,4-benzoquinone; 2,5-Diphenyl-p-quinone (CAS: 844-51-9)
Code: JCKSM-388 CAS: 844-51-9 Chemical Formula: C18H12O2 Molecular Weight: 260.29 Category: KSM'S/Intermediates Literature: Application: 2,5-Diphenyl-1,4-benzoquinone; 2,5-Diphenyl-p-quinone (CAS: 844-51-9) is useful as reference Impurity standard. 
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Product Name : 5-Methylbenzotriazole; 5-Methyl-1H-benzotriazole (CAS: 136-85-6)
Code: JCKSM-387 CAS: 136-85-6 Chemical Formula: C7H7N3 Molecular Weight: 133.15 Category: KSM'S/Intermediates Literature: Application: 5-Methylbenzotriazole; 5-Methyl-1H-benzotriazole (CAS: 136-85-6) is useful as reference Impurity standard. 
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Product Name : 3,5-Difluoronitrobenzene; 1,3-Difluoro-5-nitrobenzene (CAS: 2265-94-3)
Code: JCKSM-386 CAS: 2265-94-3 Chemical Formula: C6H3F2NO2 Molecular Weight: 159.09 Category: KSM'S/Intermediates Literature: Application: 3,5-Difluoronitrobenzene; 1,3-Difluoro-5-nitrobenzene (CAS: 2265-94-3) is useful as reference Impurity standard. 
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Product Name : 4-Piperidinecarboxylic Acid Methyl Ester HCl (CAS: 7462-86-4)
Code: JCKSM-385 CAS: 7462-86-4 Chemical Formula: C₇H₁₄ClNO₂ Molecular Weight: 179.65 Category: KSM'S/Intermediates Literature: Application: 4-Piperidinecarboxylic Acid Methyl Ester HCl (CAS: 7462-86-4) is useful as reference Impurity standard. 
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Product Name : N-[4-(Hydroxymethyl)phenyl]acetamide; 4-Acetamidobenzyl Alcohol (CAS: 16375-88-5)
Code: JCKSM-384 CAS: 16375-88-5 Chemical Formula: C9H11NO2 Molecular Weight: 165.19 Category: KSM'S/Intermediates Literature: Application: N-[4-(Hydroxymethyl)phenyl]acetamide (CAS: 16375-88-5) is useful as reference Impurity standard. ![N-[4-(Hydroxymethyl)phenyl]acetamide; 4-Acetamidobenzyl Alcohol (CAS: 16375-88-5)](https://drjcrbio.com/wp-content/uploads/KSM-384.png)
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Product Name : 3,5-Dimethoxy bromobenzene (CAS: 20469-65-2)
Code: JCKSM-383 CAS: 20469-65-2 Chemical Formula: C8H9BrO2 Molecular Weight: 217.06 Category: KSM'S/Intermediates Literature: Application: 3,5-Dimethoxy bromobenzene (CAS: 20469-65-2) is useful as reference Impurity standard. 
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Product Name : 1,3,5-Tribromobenzene (CAS: 626-39-1)
Code: JCKSM-382 CAS: 626-39-1 Chemical Formula: C6H3Br3 Molecular Weight: 314.80 Category: KSM'S/Intermediates Literature: Application: 1,3,5-Tribromobenzene (CAS: 626-39-1) is useful as reference Impurity standard. 
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Product Name : 2,4,6-Tribromoaniline (CAS: 147-82-0)
Code: JCKSM-381 CAS: 147-82-0 Chemical Formula: C6H4Br3N Molecular Weight: 329.82 Category: KSM'S/Intermediates Literature: Application: 2,4,6-Tribromoaniline (CAS: 147-82-0) is useful as reference Impurity standard. 
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Product Name : 1-tert-butyl-4-methanesulfonylbenzene (CAS: 22796-14-1)
Code: JCKSM-380 CAS: 22796-14-1 Chemical Formula: C11H16O2S Molecular Weight: 212.31 Category: KSM'S/Intermediates Literature: Application: 1-tert-butyl-4-methanesulfonylbenzene (CAS: 22796-14-1) is useful as reference Impurity standard. 
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Product Name : (4-(tert-butyl)phenyl)(methyl)sulfane (CAS: 7252-86-0)
Code: JCKSM-379 CAS: 7252-86-0 Chemical Formula: C11H16S Molecular Weight: 180.31 Category: KSM'S/Intermediates Literature: Application: (4-(tert-butyl)phenyl)(methyl)sulfane (CAS: 7252-86-0) is useful as reference Impurity standard. 
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Product Name : Methyl 3,5-Di-tert-butylbenzoate; 3,5-Di-tert-butylbenzoic Acid Methyl Ester (CAS: 64277-87-8)
Code: JCKSM-378 CAS: 64277-87-8 Chemical Formula: C16H24O2 Molecular Weight: 248.37 Category: KSM'S/Intermediates Literature: Application: Methyl 3,5-Di-tert-butylbenzoate; 3,5-Di-tert-butylbenzoic Acid Methyl Ester (CAS: 64277-87-8) is useful as reference Impurity standard. 
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Product Name : 1-Bromo-3,5-di-tert-butylbenzene (CAS: 22385-77-9)
Code: JCKSM-377 CAS: 22385-77-9 Chemical Formula: C14H21Br Molecular Weight: 269.23 Category: KSM'S/Intermediates Literature: Application: 1-Bromo-3,5-di-tert-butylbenzene (CAS: 22385-77-9) is useful as reference Impurity standard. 
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Product Name : Endo-Bicyclo[3.3.1]non-6-ene-3-carboxylic Acid (CAS: 21932-98-9)
Code: JCKSM-376 CAS: 21932-98-9 Chemical Formula: C10H14O2 Molecular Weight: 166.22 Category: KSM'S/Intermediates Literature: Application: Endo-Bicyclo[3.3.1]non-6-ene-3-carboxylic Acid (CAS: 21932-98-9) is useful as reference Impurity standard. ![Endo-Bicyclo[3.3.1]non-6-ene-3-carboxylic Acid (CAS: 21932-98-9)](https://drjcrbio.com/wp-content/uploads/KSM-376.png)
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Product Name : 3,5-Di-tert-butylbenzoic Acid (CAS: 16225-26-6)
Code: JCKSM-375 CAS: 16225-26-6 Chemical Formula: C15H22O2 Molecular Weight: 234.34 Category: KSM'S/Intermediates Literature: Application: 3,5-Di-tert-butylbenzoic Acid (CAS: 16225-26-6) is useful as reference Impurity standard. 
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Product Name : 1,3-Di-tert-butylbenzene (CAS: 1014-60-4)
Code: JCKSM-374 CAS: 1014-60-4 Chemical Formula: C14H22 Molecular Weight: 190.33 Category: KSM'S/Intermediates Literature: Application: 1,3-Di-tert-butylbenzene (CAS: 1014-60-4) is useful as reference Impurity standard. 
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Product Name : 1,4-Di-tert-butylbenzene (CAS: 1012-72-2)
Code: JCKSM-373 CAS: 1012-72-2 Chemical Formula: C14H22 Molecular Weight: 190.33 Category: KSM'S/Intermediates Literature: Application: 1,4-Di-tert-butylbenzene (CAS: 1012-72-2) is useful as reference Impurity standard. 
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Product Name : 5-Amino-2-fluorobenzonitrile; 3-Cyano-4-fluoroaniline (CAS: 53312-81-5)
Code: JCKSM-372 CAS: 53312-81-5 Chemical Formula: C7H5FN2 Molecular Weight: 136.13 Category: KSM'S/Intermediates Literature: Application: 5-Amino-2-fluorobenzonitrile; 3-Cyano-4-fluoroaniline (CAS: 53312-81-5) is useful as reference Impurity standard. 
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Product Name : Atromentin; 2,5-Dihydroxy-3,6-bis(4-hydroxyphenyl)-2,5-cyclohexadiene-1,4-dione (CAS: 519-67-5)
Code: JCKSM-371 CAS: 519-67-5 Chemical Formula: C18H12O6 Molecular Weight: 324.28 Category: KSM'S/Intermediates Literature: Application: Atromentin; 2,5-Dihydroxy-3,6-bis(4-hydroxyphenyl)-2,5-cyclohexadiene-1,4-dione (CAS: 519-67-5) is useful as reference Impurity standard. 
