miscellaneous and its Impurities

Miscellaneous Chemicals typically refers to a broad and diverse category of chemical substances that don't neatly fit into more specific classifications like commodity chemicals, specialty chemicals, or fine chemicals. Reference standards of Miscellaneous API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 51 results for miscellaneous Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 27 0036195

2,5-Dioxopyrrolidin-1-yl 4-((5-nitropyridin-2-yl)disulfaneyl)pentanoate

2,5-Dioxopyrrolidin-1-yl 4-((5-nitropyridin-2-yl)disulfaneyl)pentanoate


  • Catalogue No.:PA 27 0036195

  • CAS :

    663598-61-6

  • Molecular Formula : C14H15N3O6S2

  • Molecular Weight : 385.41

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036196

1-((4-((5-Nitropyridin-2-yl)disulfaneyl)pentanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid

1-((4-((5-Nitropyridin-2-yl)disulfaneyl)pentanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid


  • Catalogue No.:PA 27 0036196

  • CAS :

    663598-66-1

  • Molecular Formula : C14H15N3O9S3

  • Molecular Weight : 465.47

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036198

2,5-Dioxopyrrolidin-1-yl 4-((5-nitropyridin-2-yl)disulfaneyl)butanoate

2,5-Dioxopyrrolidin-1-yl 4-((5-nitropyridin-2-yl)disulfaneyl)butanoate


  • Catalogue No.:PA 27 0036198

  • CAS :

    663598-85-4

  • Molecular Formula : C13H13N3O6S2

  • Molecular Weight : 371.38

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036199

1-((4-((5-Nitropyridin-2-yl)disulfaneyl)butanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid

1-((4-((5-Nitropyridin-2-yl)disulfaneyl)butanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid


  • Catalogue No.:PA 27 0036199

  • CAS :

    663598-89-8

  • Molecular Formula : C13H13N3O9S3

  • Molecular Weight : 451.44

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036206

2,5-Dioxopyrrolidin-1-yl 4-methyl-4-((5-nitropyridin-2-yl)disulfaneyl)pentanoate

2,5-Dioxopyrrolidin-1-yl 4-methyl-4-((5-nitropyridin-2-yl)disulfaneyl)pentanoate


  • Catalogue No.:PA 27 0036206

  • CAS :

    663598-98-9

  • Molecular Formula : C15H17N3O6S2

  • Molecular Weight : 399.44

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036207

1-((4-Methyl-4-((5-nitropyridin-2-yl)disulfaneyl)pentanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid

1-((4-Methyl-4-((5-nitropyridin-2-yl)disulfaneyl)pentanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid


  • Catalogue No.:PA 27 0036207

  • CAS :

    663599-00-6

  • Molecular Formula : C15H17N3O9S3

  • Molecular Weight : 479.49

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036208

4-((5-(Dimethylcarbamoyl)pyridin-2-yl)disulfaneyl)butanoic acid

4-((5-(Dimethylcarbamoyl)pyridin-2-yl)disulfaneyl)butanoic acid


  • Catalogue No.:PA 27 0036208

  • CAS :

    663599-04-0

  • Molecular Formula : C12H16N2O3S2

  • Molecular Weight : 300.39

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036210

2,5-Dioxopyrrolidin-1-yl 4-((5-(dimethylcarbamoyl)pyridin-2-yl)disulfaneyl)butanoate

2,5-Dioxopyrrolidin-1-yl 4-((5-(dimethylcarbamoyl)pyridin-2-yl)disulfaneyl)butanoate


  • Catalogue No.:PA 27 0036210

  • CAS :

    663599-05-1

  • Molecular Formula : C16H19N3O5S2

  • Molecular Weight : 397.46

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036211

1-((4-((5-(Dimethylcarbamoyl)pyridin-2-yl)disulfaneyl)butanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid

1-((4-((5-(Dimethylcarbamoyl)pyridin-2-yl)disulfaneyl)butanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid


  • Catalogue No.:PA 27 0036211

  • CAS :

    663599-07-3

  • Molecular Formula : C16H19N3O8S3

  • Molecular Weight : 477.52

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036212

2,5-Dioxopyrrolidin-1-yl 4-((3-(dimethylcarbamoyl)pyridin-4-yl)disulfaneyl)pentanoate

2,5-Dioxopyrrolidin-1-yl 4-((3-(dimethylcarbamoyl)pyridin-4-yl)disulfaneyl)pentanoate


  • Catalogue No.:PA 27 0036212

  • CAS :

    663599-10-8

  • Molecular Formula : C17H21N3O5S2

  • Molecular Weight : 411.49

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036213

2,5-Dioxopyrrolidin-1-yl 4-((3-(dimethylcarbamoyl)pyridin-4-yl)disulfaneyl)pentanoate

1-((4-((3-(Dimethylcarbamoyl)pyridin-4-yl)disulfaneyl)pentanoyl)oxy)-2,5-dioxopyrrolidine-3-sulfonic acid


  • Catalogue No.:PA 27 0036213

  • CAS :

    663599-11-9

  • Molecular Formula : C17H21N3O8S3

  • Molecular Weight : 491.55

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036214

(R)-2-((tert-butoxycarbonyl)(Methyl)amino)-3-methyl-3-phenylbutanoic acid

(R)-2-((tert-butoxycarbonyl)(Methyl)amino)-3-methyl-3-phenylbutanoic acid


  • Catalogue No.:PA 27 0036214

  • CAS :

    676487-38-0

  • Molecular Formula : C17H25NO4

  • Molecular Weight : 307.39

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036215

2,5-Dioxopyrrolidin-1-yl 3-(pyridin-2-yldisulfaneyl)propanoate

2,5-Dioxopyrrolidin-1-yl 3-(pyridin-2-yldisulfaneyl)propanoate


  • Catalogue No.:PA 27 0036215

  • CAS :

    68181-17-9

  • Molecular Formula : C12H12N2O4S2

  • Molecular Weight : 312.36

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036216

(S)-3-Azido-2-(((benzyloxy)carbonyl)amino)propanoic acid

(S)-3-Azido-2-(((benzyloxy)carbonyl)amino)propanoic acid


  • Catalogue No.:PA 27 0036216

  • CAS :

    684270-44-8

  • Molecular Formula : C11H12N4O4

  • Molecular Weight : 264.24

Drug Reference Standards & Impurity Synthesis in India
PA 27 0036217

Disuccinimidyl suberate

Disuccinimidyl suberate


  • Catalogue No.:PA 27 0036217

  • CAS :

    68528-80-3

  • Molecular Formula : C16H20N2O8

  • Molecular Weight : 368.34

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035828

Bis-Tos-(2-hydroxyethyl disulfide) 

Bis-Tos-(2-hydroxyethyl disulfide)


  • Catalogue No.:PA 27 0035828

  • CAS :

    69981-39-1

  • Molecular Formula : C18H22O6S4

  • Molecular Weight : 462.61

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035829

(2S,4R)-Fmoc-L-Pro(4-N3)-OH

(2S,4R)-Fmoc-L-Pro(4-N3)-OH


  • Catalogue No.:PA 27 0035829

  • CAS :

    702679-55-8

  • Molecular Formula : C20H18N4O4

  • Molecular Weight : 378.39

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035830

Folate-PEG3-amine 

Folate-PEG3-amine


  • Catalogue No.:PA 27 0035830

  • CAS :

    710323-40-3

  • Molecular Formula : C27H37N9O8

  • Molecular Weight : 615.65

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035832

Mc-Phe-Lys(Boc)-PAB 

Mc-Phe-Lys(Boc)-PAB


  • Catalogue No.:PA 27 0035832

  • CAS :

    756487-18-0

  • Molecular Formula : C37H49N5O8

  • Molecular Weight : 691.83

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035833

m-PEG8-NHS ester 

m-PEG8-NHS ester


  • Catalogue No.:PA 27 0035833

  • CAS :

    756525-90-3

  • Molecular Formula : C22H39NO12

  • Molecular Weight : 509.55

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035801

4-(Azidomethyl)benzoic Acid

4-(Azidomethyl)benzoic Acid


  • Catalogue No.:PA 27 0035801

  • CAS :

    79584-03-5

  • Molecular Formula : C8H7N3O2

  • Molecular Weight : 177.16

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035802

4-Methyl-4-(methyldisulfanyl)pentanoic Acid

4-Methyl-4-(methyldisulfanyl)pentanoic Acid


  • Catalogue No.:PA 27 0035802

  • CAS :

    796073-55-7

  • Molecular Formula : C7H14O2S2

  • Molecular Weight : 194.31

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035780

(5S,8S,11S,12R)-11-((S)-Sec-butyl)-1-(9H-fluoren-9-yl)-5,8-diisopropyl-12-methoxy-4,10-dimethyl-3,6,9-trioxo-2-oxa-4,7,10-triazatetradecan-14-oic Acid

(5S,8S,11S,12R)-11-((S)-Sec-butyl)-1-(9H-fluoren-9-yl)-5,8-diisopropyl-12-methoxy-4,10-dimethyl-3,6,9-trioxo-2-oxa-4,7,10-triazatetradecan-14-oic Acid


  • Catalogue No.:PA 27 0035780

  • CAS :

    863971-44-2

  • Molecular Formula : C36H51N3O7

  • Molecular Weight : 637.82

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035781

3-((2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)disulfanyl)propanoic Acid

3-((2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)disulfanyl)propanoic Acid


  • Catalogue No.:PA 27 0035781

  • CAS :

    864235-83-6

  • Molecular Formula : C20H21NO4S2

  • Molecular Weight : 403.51

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035784

2,5-Dioxopyrrolidin-1-yl 6-azidohexanoate

2,5-Dioxopyrrolidin-1-yl 6-azidohexanoate


  • Catalogue No.:PA 27 0035784

  • CAS :

    866363-70-4

  • Molecular Formula : C10H14N4O4

  • Molecular Weight : 254.25

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035787

6-(6-Azidohexanamido)hexanoic Acid

6-(6-Azidohexanamido)hexanoic Acid


  • Catalogue No.:PA 27 0035787

  • CAS :

    866363-71-5

  • Molecular Formula : C12H22N4O3

  • Molecular Weight : 270.33

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035786

(S)-2-((S)-2-((tert-Butoxycarbonyl)amino)-3-methylbutanamido)-5-ureidopentanoic Acid

(S)-2-((S)-2-((tert-Butoxycarbonyl)amino)-3-methylbutanamido)-5-ureidopentanoic Acid


  • Catalogue No.:PA 27 0035786

  • CAS :

    870487-08-4

  • Molecular Formula : C16H30N4O6

  • Molecular Weight : 374.44

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035789

tert-Butyl ((S)-1-(((S)-1-((4-(hydroxymethyl)phenyl)amino)-1-oxo-5-ureidopentan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)carbamate

tert-Butyl ((S)-1-(((S)-1-((4-(hydroxymethyl)phenyl)amino)-1-oxo-5-ureidopentan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)carbamate


  • Catalogue No.:PA 27 0035789

  • CAS :

    870487-09-5

  • Molecular Formula : C23H37N5O6

  • Molecular Weight : 479.58

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035790

tert-Butyl ((S)-3-methyl-1-(((S)-1-((4-((((4-nitrophenoxy)carbonyl)oxy)methyl)phenyl)amino)-1-oxo-5-ureidopentan-2-yl)amino)-1-oxobutan-2-yl)carbamate

tert-Butyl ((S)-3-methyl-1-(((S)-1-((4-((((4-nitrophenoxy)carbonyl)oxy)methyl)phenyl)amino)-1-oxo-5-ureidopentan-2-yl)amino)-1-oxobutan-2-yl)carbamate


  • Catalogue No.:PA 27 0035790

  • CAS :

    870487-10-8

  • Molecular Formula : C30H40N6O10

  • Molecular Weight : 644.68

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035745

4-Nitrophenyl (2-(pyridin-2-yldisulfanyl)ethyl) carbonate

4-Nitrophenyl (2-(pyridin-2-yldisulfanyl)ethyl) carbonate


  • Catalogue No.:PA 27 0035745

  • CAS :

    874302-76-8

  • Molecular Formula : C14H12N2O5S2

  • Molecular Weight : 352.38

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035746

3-(2,2,2-Trifluoroacetamido)propanoyl Chloride

3-(2,2,2-Trifluoroacetamido)propanoyl Chloride


  • Catalogue No.:PA 27 0035746

  • CAS :

    87639-76-7

  • Molecular Formula : C5H5ClF3NO2

  • Molecular Weight : 203.55

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035747

2-((2-((Tetrahydro-2H-pyran-2-yl)oxy)ethyl)disulfanyl)ethan-1-ol

2-((2-((Tetrahydro-2H-pyran-2-yl)oxy)ethyl)disulfanyl)ethan-1-ol


  • Catalogue No.:PA 27 0035747

  • CAS :

    877864-04-5

  • Molecular Formula : C9H18O3S2

  • Molecular Weight : 238.36

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035748

1,1'-(Glutaroylbis(oxy))bis(2,5-dioxopyrrolidine-3-sulfonic acid), disodium Salt

1,1'-(Glutaroylbis(oxy))bis(2,5-dioxopyrrolidine-3-sulfonic acid), disodium Salt


  • Catalogue No.:PA 27 0035748

  • CAS :

    881415-72-1

  • Molecular Formula : C13H14N2Na2O14S2

  • Molecular Weight : 532.35

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035749

N-((2S,3R,4R,5R,6R)-2-(2-(2-(2-Azidoethoxy)ethoxy)ethoxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide

N-((2S,3R,4R,5R,6R)-2-(2-(2-(2-Azidoethoxy)ethoxy)ethoxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide


  • Catalogue No.:PA 27 0035749

  • CAS :

    882873-70-3

  • Molecular Formula : C14H26N4O8

  • Molecular Weight : 378.38

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035750

Perfluorophenyl 2-(cyclooct-2-yn-1-yloxy)acetate

Perfluorophenyl 2-(cyclooct-2-yn-1-yloxy)acetate


  • Catalogue No.:PA 27 0035750

  • CAS :

    886209-60-5

  • Molecular Formula : C16H13F5O3

  • Molecular Weight : 348.27

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035751

2,5-Dioxopyrrolidin-1-yl 4-methyl-4-(pyridin-2-yldisulfanyl)pentanoate

2,5-Dioxopyrrolidin-1-yl 4-methyl-4-(pyridin-2-yldisulfanyl)pentanoate


  • Catalogue No.:PA 27 0035751

  • CAS :

    890409-85-5

  • Molecular Formula : C15H18N2O4S2

  • Molecular Weight : 354.44

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035752

3-(Methylsulfonyl)-2,5-dioxopyrrolidin-1-yl 4-((5-nitropyridin-2-yl)disulfanyl)butanoate

3-(Methylsulfonyl)-2,5-dioxopyrrolidin-1-yl 4-((5-nitropyridin-2-yl)disulfanyl)butanoate


  • Catalogue No.:PA 27 0035752

  • CAS :

    890409-86-6

  • Molecular Formula : C14H15N3O8S3

  • Molecular Weight : 449.47

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035753

(2S,4S)-4-Azidopyrrolidine-2-carboxylic Acid

(2S,4S)-4-Azidopyrrolidine-2-carboxylic Acid


  • Catalogue No.:PA 27 0035753

  • CAS :

    892128-58-4

  • Molecular Formula : C5H8N4O2

  • Molecular Weight : 156.15

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035754

β-D-Glucuronide-pNP-carbonate

β-D-Glucuronide-pNP-carbonate


  • Catalogue No.:PA 27 0035754

  • CAS :

    894095-98-8

  • Molecular Formula : C45H43N3O18

  • Molecular Weight : 913.84

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035755

(2S,3R,4S,5S,6S)-2-(2-(3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)propanamido)-4-(hydroxymethyl)phenoxy)-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate

(2S,3R,4S,5S,6S)-2-(2-(3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)propanamido)-4-(hydroxymethyl)phenoxy)-6-(methoxycarbonyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate


  • Catalogue No.:PA 27 0035755

  • CAS :

    894096-02-7

  • Molecular Formula : C38H40N2O14

  • Molecular Weight : 748.74

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035729

2,5-Dioxopyrrolidin-1-yl hex-5-ynoate

2,5-Dioxopyrrolidin-1-yl hex-5-ynoate


  • Catalogue No.:PA 27 0035729

  • CAS :

    906564-59-8

  • Molecular Formula : C10H11NO4

  • Molecular Weight : 209.2

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035730

Propargyl-DOTA-tris(tBu)ester 

Propargyl-DOTA-tris(tBu)ester


  • Catalogue No.:PA 27 0035730

  • CAS :

    911197-00-7

  • Molecular Formula : C31H55N5O7

  • Molecular Weight : 609.81

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035731

2-(4,7,10-Tris(2-amino-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl)acetic Acid

2-(4,7,10-Tris(2-amino-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl)acetic Acid


  • Catalogue No.:PA 27 0035731

  • CAS :

    913528-04-8

  • Molecular Formula : C16H31N7O5

  • Molecular Weight : 401.47

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035732

DOTA-bis(tert-butyl)ester 

DOTA-bis(tert-butyl)ester


  • Catalogue No.:PA 27 0035732

  • CAS :

    913542-71-9

  • Molecular Formula : C24H44N4O8

  • Molecular Weight : 516.64

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035734

Sulfo-SMPB sodium 

Sulfo-SMPB sodium


  • Catalogue No.:PA 27 0035734

  • CAS :

    92921-26-1

  • Molecular Formula : C18H16N2NaO9S

  • Molecular Weight : 459.38

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035736

2,5-Dioxopyrrolidin-1-yl 4-azidobutanoate

2,5-Dioxopyrrolidin-1-yl 4-azidobutanoate


  • Catalogue No.:PA 27 0035736

  • CAS :

    943858-70-6

  • Molecular Formula : C8H10N4O4

  • Molecular Weight : 226.19

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035735

Tomaymycin DM

Tomaymycin DM


  • Catalogue No.:PA 27 0035735

  • CAS :

    945490-09-5

  • Molecular Formula : C14H14N2O3

  • Molecular Weight : 258.28

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035737

2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamido)ethoxy)ethoxy)propanoate

2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamido)ethoxy)ethoxy)propanoate


  • Catalogue No.:PA 27 0035737

  • CAS :

    955094-26-5

  • Molecular Formula : C18H23N3O9

  • Molecular Weight : 425.39

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035738

bis(2,5-Dioxopyrrolidin-1-yl) 4,4'-disulfanediyldibutyrate

bis(2,5-Dioxopyrrolidin-1-yl) 4,4'-disulfanediyldibutyrate


  • Catalogue No.:PA 27 0035738

  • CAS :

    98604-88-7

  • Molecular Formula : C16H20N2O8S2

  • Molecular Weight : 432.46

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035739

1,1'-((4,4'-Disulfanediylbis(butanoyl))bis(oxy))bis(2,5-dioxopyrrolidine-3-sulfonic Acid)

1,1'-((4,4'-Disulfanediylbis(butanoyl))bis(oxy))bis(2,5-dioxopyrrolidine-3-sulfonic Acid)


  • Catalogue No.:PA 27 0035739

  • CAS :

    98604-89-8

  • Molecular Formula : C16H20N2O14S4

  • Molecular Weight : 592.58

Drug Reference Standards & Impurity Synthesis in India
PA 27 0035740

N-(4-Aminobutyl)propionamide

N-(4-Aminobutyl)propionamide


  • Catalogue No.:PA 27 0035740

  • CAS :

    99789-97-6

  • Molecular Formula : C7H16N2O

  • Molecular Weight : 144.22