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 : 3-methylthieno[2,3-c]pyridin-7-ol/ 1196156-29-2

    Code: JCKSM-119
    CAS: 1196156-29-2
    Chemical Formula: C8H7O1N1S1
    Molecular Weight: 165.22
    Category: KSM'S/Intermediates
    Literature:
    Application: 3-methylthieno[2,3-c]pyridin-7-ol is useful as reference Impurity standard
    3-methylthieno[2,3-c]pyridin-7-ol/ 1196156-29-2
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    Product Name : 2,3,5,6-Tetrachloronitrobenzene/ 117-18-0

    Code: JCKSM-118
    CAS: 117-18-0 
    Chemical Formula: C6HCl4NO2
    Molecular Weight: 260.88
    Category: KSM'S/Intermediates
    Literature:
    Application: 2,3,5,6-Tetrachloronitrobenzene is useful as reference Impurity standard
    2,3,5,6-Tetrachloronitrobenzene/ 117-18-0
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    Product Name : 2-Amino-N-(2,2,2-trifluoroethyl)acetamide HCl/ 1171331-39-7

    Code: JCKSM-117
    CAS: 1171331-39-7
    Chemical Formula: C4H8O1N2Cl1F3
    Molecular Weight: 192.57
    Category: KSM'S/Intermediates
    Literature:
    Application: 2-Amino-N-(2,2,2-trifluoroethyl)acetamide HCl is useful as reference Impurity standard
    2-Amino-N-(2,2,2-trifluoroethyl)acetamide HCl/ 1171331-39-7
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    Product Name : 2-Amino-4′-bromobenzophenone/ 1140-17-6

    Code: JCKSM-116
    CAS: 1140-17-6
    Chemical Formula: C13H10BrNO
    Molecular Weight: 276.13
    Category: KSM'S/Intermediates
    Literature:
    Application: 2-Amino-4'-bromobenzophenone/ 1140-17-6 is useful as reference Impurity standard
    2-Amino-4'-bromobenzophenone/ 1140-17-6
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    Product Name : 4-(Methylthio)aniline/ 104-96-1

    Code: JCKSM-115
    CAS: 104-96-1
    Chemical Formula: C7H9NS
    Molecular Weight: 139.22
    Category: KSM'S/Intermediates
    Literature:
    Application: 4-(Methylthio)aniline / 104-96-1 is useful as reference Impurity standard
    4-(Methylthio)aniline/ 104-96-1
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    Product Name : 4-Acetyl-2-methylbenzonitrile/ 1138444-80-0

    Code: JCKSM-114
    CAS: 1138444-80-0
    Chemical Formula: C10H9O1N1
    Molecular Weight: 159.19
    Category: KSM'S/Intermediates
    Literature:
    Application: 4-Acetyl-2-methylbenzonitrile/1138444-80-0  is useful as reference Impurity standard
    4-Acetyl-2-methylbenzonitrile/ 1138444-80-0
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    Product Name : 4-Bromo-1-iodo-2-nitrobenzene/ 112671-42-8

    Code: JCKSM-113
    CAS: 112671-42-8
    Chemical Formula: C7H12O3
    Molecular Weight: 327.9
    Category: KSM'S/Intermediates
    Literature:
    Application: 4-Bromo-1-iodo-2-nitrobenzene/112671-42-8  is useful as reference Impurity standard
    4-Bromo-1-iodo-2-nitrobenzene/ 112671-42-8
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    Product Name : Methyl tetrahydropyran-4-carboxylate/ 110238-91-0

    Code: JCKSM-112
    CAS: 110238-91-0
    Chemical Formula: C7H12O3
    Molecular Weight:144.17
    Category: KSM'S/Intermediates
    Literature:
    Application: Methyl tetrahydropyran-4-carboxylate/110238-91-0 is useful as reference Impurity standard
    Methyl tetrahydropyran-4-carboxylate/ 110238-91-0
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    Product Name : Benzoic acid, 4-[3-(3,5-dichlorophenyl)-4,4,4-trifluoro-1-oxo-2-buten-1-yl]-2-methyl/1095275-26-5

    Code: JCKSM-111
    CAS: 1095275-26-5
    Chemical Formula: C18H11Cl2F3O3
    Molecular Weight: 403.18
    Category: KSM'S/Intermediates
    Literature:
    Application: Benzoic acid, 4-[3-(3,5-dichlorophenyl)-4,4,4-trifluoro-1-oxo-2-buten-1-yl]-2-methyl is useful as reference Impurity standard
    Benzoic acid, 4-[3-(3,5-dichlorophenyl)-4,4,4-trifluoro-1-oxo-2-buten-1-yl]-2-methyl/1095275-26-5
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    Product Name : 7-bromo-2-(1-methyl-1H-pyrazol-4-yl)quinoxaline/1083325-87-4

    Code: JCKSM-110
    CAS: 1083325-87-4
    Chemical Formula: C12H9BrN4
    Molecular Weight: 289.13
    Category: KSM'S/Intermediates
    Literature:
    Application: 7-bromo-2-(1-methyl-1H-pyrazol-4-yl)quinoxaline/ 1083325-87-4  is useful as reference Impurity standard
    7-bromo-2-(1-methyl-1H-pyrazol-4-yl)quinoxaline/1083325-87-4
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    Product Name : Exametazime/105613-48-7

    Code: JCKSM-109
    CAS: 105613-48-7
    Chemical Formula: C13H28N4O2
    Molecular Weight: 272.39
    Category: KSM'S/Intermediates
    Literature:
    Application: Exametazime / 105613-48-7 is useful as reference Impurity standard
    Exametazime/105613-48-7
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    Product Name : 4-(4-Nitrophenyl)morpholine/10389-51-2

    Code: JCKSM-108
    CAS:10389-51-2
    Chemical Formula: C10H12N2O3
    Molecular Weight: 208.22
    Category: KSM'S/Intermediates
    Literature:
    Application: 4-(4-Nitrophenyl)morpholine is useful as reference Impurity standard
    4-(4-Nitrophenyl)morpholine/10389-51-2
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    Product Name : 4-Bromothioanisole/104-95-0

    Code: JCKSM-107
    CAS: 104-95-0
    Chemical Formula: C7H7BrS
    Molecular Weight: 203.10
    Category: KSM'S/Intermediates
    Literature:
    Application:4-Bromothioanisole is useful as reference Impurity standard
    4-Bromothioanisole/104-95-0
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    Product Name : 3-Methoxyphenylboronic Acid (contains varying amounts of Anhydride)/10365-98-7

    Code: JCKSM-106
    CAS: 10365-98-7
    Chemical Formula: C7H9BO3
    Molecular Weight: 151.96
    Category: KSM'S/Intermediates
    Literature:
    Application: 3-Methoxyphenylboronic Acid is useful as reference Impurity standard
    3-Methoxyphenylboronic Acid (contains varying amounts of Anhydride)/10365-98-7
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    Product Name : 2′-Bromo-5′-phenyl-1,1′:3′,1”-terphenyl/ 10368-73-7

    Code: JCKSM-105
    CAS: 10368-73-7
    Chemical Formula: C24H17Br1
    Molecular Weight: 385.30
    Category: KSM'S/Intermediates
    Literature:
    Application:2'-Bromo-5'-phenyl-1,1':3',1''-terphenyl is useful as reference Impurity standard
    2'-Bromo-5'-phenyl-1,1':3',1''-terphenyl/ 10368-73-7
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    Product Name : methyl 4-acetyl-2-methylbenzoate/1036715-60-2

    Code: JCKSM-104
    CAS: 1036715-60-2
    Chemical Formula: C11H12O3
    Molecular Weight: 192.21
    Category: KSM'S/Intermediates
    Literature:
    Application: methyl 4-acetyl-2-methylbenzoate/ /1036715-60-2  is useful as reference Impurity standard
    methyl 4-acetyl-2-methylbenzoate/1036715-60-2
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    Product Name : 3-Chlorodiphenylamine; Chlorpromazine Hydrochloride – Impurity H (EP/BP) (As per EP Monograph 37.2); 3-Chloro-N-phenyl-benzenamine; N-(3-Chlorophenyl)-N-phenylamine; N-(3-Chlorophenyl)aniline; N-(m-Chlorophenyl)aniline; Phenyl(m-chlorophenyl)amine; m-Chlorodiphenylamine; (CAS: 101-17-7)

    Code: JCKSM-103
    CAS: 101-17-7
    Chemical Formula: C12H10ClN
    Molecular Weight: 203.67
    Category: KSM'S/Intermediates
    Status: Limited Stock; Contact: sales@drjcrbio.com
    Application:  Manufacturer of 3-Chlorodiphenylamine; Chlorpromazine Hydrochloride - Impurity H (EP/BP) (As per EP Monograph 37.2); 3-Chloro-N-phenyl-benzenamine; N-(3-Chlorophenyl)-N-phenylamine; N-(3-Chlorophenyl)aniline; N-(m-Chlorophenyl)aniline; Phenyl(m-chlorophenyl)amine; m-Chlorodiphenylamine; (CAS: 101-17-7)  is useful as reference Impurity standard
    3-Chlorodiphenylamine; Chlorpromazine Hydrochloride - Impurity H (EP/BP) (As per EP Monograph 37.2); 3-Chloro-N-phenyl-benzenamine; N-(3-Chlorophenyl)-N-phenylamine; N-(3-Chlorophenyl)aniline; N-(m-Chlorophenyl)aniline; Phenyl(m-chlorophenyl)amine; m-Chlorodiphenylamine; (CAS: 101-17-7)
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    Product Name : 4-Nitrophenetole/100-29-8

    Code: JCKSM-102
    CAS: 100-29-8
    Chemical Formula: C8H9NO3
    Molecular Weight: 167.16
    Category: KSM'S/Intermediates
    Literature:
    Application:  4-Nitrophenetole /100-29-8 is useful as reference Impurity standard
    4-Nitrophenetole/100-29-8
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    Product Name : 2-Butanone, 3,3′-[(2,2-dimethyl-1,3-propanediyl)dinitrilo]bis-, dioxime (9CI)/ 100551-64-2

    Code: JCKSM-101
    CAS: 100551-64-2
    Chemical Formula: C13H24N4O2
    Molecular Weight: 268.36
    Category: KSM'S/Intermediates
    Literature:
    Application:  2-Butanone, 3,3'-[(2,2-dimethyl-1,3-propanediyl)dinitrilo]bis-, dioxime/ 100551-64-2 is useful as reference Impurity standard.
    2-Butanone, 3,3'-[(2,2-dimethyl-1,3-propanediyl)dinitrilo]bis-, dioxime (9CI)/ 100551-64-2
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    Product Name : Pyrrole-2-carboxaldehyde/ 1003-29-8

    Code: JCKSM-100
    CAS: 1003-29-8
    Chemical Formula: C5H5NO
    Molecular Weight: 95.10
    Category: KSM'S/Intermediates
    Literature:
    Application:  Pyrrole-2-carboxaldehyde/1003-29-8  is useful as reference Impurity standard.
    Pyrrole-2-carboxaldehyde/ 1003-29-8
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    Product Name : 4-Azaphenanthrene;7,8-Benzoquinoline;α-Naphthoquinoline ;Benzo[h]quinoline/230-27-3

    Code: JCKSM-98
    CAS:230-27-3
    Chemical Formula:C13H9N
    Molecular Weight:179.22
    Category: KSM'S/Intermediates
    Literature:
    Application: ; Benzo[h]quinoline/230-27-3 is useful as reference Impurity standard
    4-Azaphenanthrene;7,8-Benzoquinoline;α-Naphthoquinoline ;Benzo[h]quinoline/230-27-3
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    Product Name : 2-Bromo-3-methoxybenzoic acid/88377-29-1

    Code: JCKSM-97
    CAS:88377-29-1
    Chemical Formula:C8H7BrO3
    Molecular Weight:231.04
    Category: KSM'S/Intermediates
    Literature:
    Application: 2-Bromo-3-methoxybenzoic acid/88377-29-10 is useful as reference Impurity standard
    2-Bromo-3-methoxybenzoic acid/88377-29-1
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    Product Name : 4-tert-Butylphenylboronic acid/123324-71-0

    Code: JCKSM-96
    CAS:123324-71-0
    Chemical Formula:C10H15BO2
    Molecular Weight:178.04
    Category: KSM'S/Intermediates
    Literature:
    Application: 4-tert-Butylphenylboronic acid/123324-71-0 is useful as reference Impurity standard
    4-tert-Butylphenylboronic acid/123324-71-0
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    Product Name : N,N-Dimethylhydroxylamine/5725-96-2

    Code: JCBB1657
    CAS:5725-96-2
    Chemical Formula:C2H7NO
    Molecular Weight:61.08
    Category:  Building Blocks ;Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: N,N-Dimethylhydroxylamine/5725-96-2 is useful as reference Impurity standard
    N,N-Dimethylhydroxylamine/5725-96-2
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    Product Name : Methyl 4-bromo-2-fluoro-3-nitrobenzoat/1805190-07-1

    Code: JCKSM-95
    CAS:1805190-07-1
    Chemical Formula:C8H5BrFNO4
    Molecular Weight:278.03
    Category: KSM'S/Intermediates
    Literature:
    Application: Methyl 4-bromo-2-fluoro-3-nitrobenzoat/1805190-07-1 is useful as reference Impurity standard
    Methyl 4-bromo-2-fluoro-3-nitrobenzoat/1805190-07-1
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    Product Name : phenanthren-2-ol;2-Phenanthrenol;2-HYDROXY-PHENANTHRENE/605-55-0

    Code: JCKSM-94
    CAS:605-55-0
    Chemical Formula:C14H10O
    Molecular Weight:194.23
    Category: KSM'S/Intermediates
    Literature:
    Application: 2-HYDROXY-PHENANTHRENE/605-55-0 is useful as reference Impurity standard
    phenanthren-2-ol;2-Phenanthrenol;2-HYDROXY-PHENANTHRENE/605-55-0
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    Product Name : 2-(4-Chlorophenyl)-4-thiazoleacetamide/17969-36-7

    Code: JCKSM-93
    CAS:17969-36-7
    Chemical Formula:C11H9ClN2OS
    Molecular Weight:252.72
    Category: KSM'S/Intermediates
    Literature:
    Application: 2-(4-Chlorophenyl)-4-thiazoleacetamide/17969-36-7 is useful as reference Impurity standard
    2-(4-Chlorophenyl)-4-thiazoleacetamide/17969-36-7
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    Product Name : Ethyl 2-(4-chlorophenyl)-4-thiazoleacetate/20287-70-1

    Code: JCKSM-92
    CAS:20287-70-1
    Chemical Formula:C13H12ClNO2S
    Molecular Weight:281.76
    Category: KSM'S/Intermediates
    Literature:
    Application: Ethyl 2-(4-chlorophenyl)-4-thiazoleacetate/20287-70-1 is useful as reference Impurity standard
    Ethyl 2-(4-chlorophenyl)-4-thiazoleacetate/20287-70-1
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    Product Name : Methyl 4-bromo-1H-pyrazole-3-carboxylate/81190-89-8

    Code: JCKSM-91
    CAS:81190-89-8
    Chemical Formula:C5H5BrN2O2
    Molecular Weight:205.01
    Category: KSM'S/Intermediates
    Literature:
    Application: Methyl 4-bromo-1H-pyrazole-3-carboxylate/81190-89-8 is useful as reference Impurity standard
    Methyl 4-bromo-1H-pyrazole-3-carboxylate/81190-89-8
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    Product Name : 5-bromo-2-(4-fluoro-phenoxy)-benzaldehyde/1160655-44-6

    Code: JCKSM-90
    CAS:1160655-44-6
    Chemical Formula:C13H8BrFO2
    Molecular Weight:295.10
    Category: KSM'S/Intermediates
    Literature:
    Application: 5-bromo-2-(4-fluoro-phenoxy)-benzaldehyde/1160655-44-6 is useful as reference Impurity standard
    5-bromo-2-(4-fluoro-phenoxy)-benzaldehyde/1160655-44-6
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    Product Name : Benzoic acid, 5-bromo-2-(4-fluorophenoxy)/1711811-91-4

    Code: JCKSM-89
    CAS:1711811-91-4
    Chemical Formula:C13H8BrFO3
    Molecular Weight:311.1
    Category: KSM'S/Intermediates
    Literature:
    Application: Benzoic acid, 5-bromo-2-(4-fluorophenoxy)/1711811-91-4 is useful as reference Impurity standard
    Benzoic acid, 5-bromo-2-(4-fluorophenoxy)/1711811-91-4
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    Product Name : Benzoic acid, 5-bromo-2-(4-fluorophenoxy)-, methyl ester/2230050-49-2

    Code: JCKSM-88
    CAS:2230050-49-2
    Chemical Formula:C14H10BrFO3
    Molecular Weight:325.13
    Category: KSM'S/Intermediates
    Literature:
    Application: Benzoic acid, 5-bromo-2-(4-fluorophenoxy)-, methyl ester/2230050-49-2 is useful as reference Impurity standard
    Benzoic acid, 5-bromo-2-(4-fluorophenoxy)-, methyl ester/2230050-49-2
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    Product Name : 2,4-Pyrimidinediamine, 6-(cyclohexyloxy)/1516519-35-9

    Code: JCKSM-87
    CAS:1516519-35-9
    Chemical Formula:C10H16N4O
    Molecular Weight:208.26
    Category: KSM'S/Intermediates
    Literature:
    Application: 2,4-Pyrimidinediamine, 6-(cyclohexyloxy)/1516519-35-9 is useful as reference Impurity standard
    2,4-Pyrimidinediamine, 6-(cyclohexyloxy)/1516519-35-9
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