Peptides and its Impurities

Peptides are naturally occurring biological macromolecules formed by the linear arrangement of two or more amino acids linked together by peptide bonds. It can be used as biomarkers for disease detection and diagnosis. Reference standards of Peptides API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 22 results for Peptides Impurities
Drug Reference Standards & Impurity Synthesis in India
PA PEP 004311

(R)-2-Amino-N-((S)-1-(((S)-7-amino-1-chloro-2-oxoheptan-3-yl)amino)-1-oxo-3-phenylpropan-2-yl)-3-methylbutanamide

(R)-2-Amino-N-((S)-1-(((S)-7-amino-1-chloro-2-oxoheptan-3-yl)amino)-1-oxo-3-phenylpropan-2-yl)-3-methylbutanamide

  • Catalogue No.:PA PEP 004311

  • CAS :

    75590-17-9

  • Molecular Formula : C21H33ClN4O3

  • Molecular Weight : 424.97

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004312

H-Pro-Gly-Pro-OH

H-Pro-Gly-Pro-OH

  • Catalogue No.:PA PEP 004312

  • CAS :

    7561-51-5

  • Molecular Formula : C12H19N3O4

  • Molecular Weight : 269.3

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004313

L-Tyrosyl-D-serylglycyl-L-phenylalanyl-L-leucyl-L-threonine

L-Tyrosyl-D-serylglycyl-L-phenylalanyl-L-leucyl-L-threonine

  • Catalogue No.:PA PEP 004313

  • CAS :

    75644-90-5

  • Molecular Formula : C33H46N6O10

  • Molecular Weight : 686.76

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004314

L-Prolyl-L-histidyl-L-prolyl-L-phenylalanyl-L-histidyl-L-phenylalanyl-L-phenylalanyl-L-valyl-L-tyrosyl-L-lysine

L-Prolyl-L-histidyl-L-prolyl-L-phenylalanyl-L-histidyl-L-phenylalanyl-L-phenylalanyl-L-valyl-L-tyrosyl-L-lysine

  • Catalogue No.:PA PEP 004314

  • CAS :

    75645-19-1

  • Molecular Formula : C69H87N15O12

  • Molecular Weight : 1318.55

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004315

3-((2S,5S,11S,14R)-14-Benzyl-11-(carboxymethyl)-5-(3-guanidinopropyl)-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentaazacyclopentadecan-2-yl)propanoic Acid

3-((2S,5S,11S,14R)-14-Benzyl-11-(carboxymethyl)-5-(3-guanidinopropyl)-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentaazacyclopentadecan-2-yl)propanoic Acid

  • Catalogue No.:PA PEP 004315

  • CAS :

    756500-22-8

  • Molecular Formula : C26H36N8O9

  • Molecular Weight : 604.62

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004316

2-((2S,5R,8S,11S,14S)-8-(4-Aminobutyl)-5-benzyl-11-(3-guanidinopropyl)-14-methyl-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentaazacyclopentadecan-2-yl)acetic Acid

2-((2S,5R,8S,11S,14S)-8-(4-Aminobutyl)-5-benzyl-11-(3-guanidinopropyl)-14-methyl-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentaazacyclopentadecan-2-yl)acetic Acid

  • Catalogue No.:PA PEP 004316

  • CAS :

    756500-23-9

  • Molecular Formula : C28H43N9O7

  • Molecular Weight : 617.71

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004317

3-((2S,5S,8S,11S,14R)-14-Benzyl-11-(carboxymethyl)-5-(3-guanidinopropyl)-8-methyl-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentaazacyclopentadecan-2-yl)propanoic Acid

3-((2S,5S,8S,11S,14R)-14-Benzyl-11-(carboxymethyl)-5-(3-guanidinopropyl)-8-methyl-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentaazacyclopentadecan-2-yl)propanoic Acid

  • Catalogue No.:PA PEP 004317

  • CAS :

    756500-24-0

  • Molecular Formula : C27H38N8O9

  • Molecular Weight : 618.65

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004318

(3R,8aS)-3-((1H-Imidazol-5-yl)methyl)hexahydropyrrolo[1,2-a]pyrazine-1,4-dione

(3R,8aS)-3-((1H-Imidazol-5-yl)methyl)hexahydropyrrolo[1,2-a]pyrazine-1,4-dione

  • Catalogue No.:PA PEP 004318

  • CAS :

    75685-88-0

  • Molecular Formula : C11H14N4O2

  • Molecular Weight : 234.26

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004319

Peptide F, bovine

Peptide F, bovine

  • Catalogue No.:PA PEP 004319

  • CAS :

    75718-92-2

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004320

Dynorphin A (1-8)

Dynorphin A (1-8)

  • Catalogue No.:PA PEP 004320

  • CAS :

    75790-53-3

  • Molecular Formula : C46H72N14O10

  • Molecular Weight : 981.17

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004321

(2S,5S,8S,11S)-11-(4-Aminobutyl)-8-(carboxymethyl)-2-(4-hydroxybenzyl)-5-isopropyl-4,7,10,13-tetraoxo-3,6,9,12-tetraazatetradecanoic Acid

(2S,5S,8S,11S)-11-(4-Aminobutyl)-8-(carboxymethyl)-2-(4-hydroxybenzyl)-5-isopropyl-4,7,10,13-tetraoxo-3,6,9,12-tetraazatetradecanoic Acid

  • Catalogue No.:PA PEP 004321

  • CAS :

    757942-88-4

  • Molecular Formula : C26H39N5O9

  • Molecular Weight : 565.62

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004322

(S)-4-((S)-1-(L-Lysyl-L-prolyl-L-prolyl-L-threonyl-L-prolyl-L-prolyl)pyrrolidine-2-carboxamido)-5-((S)-2-(((S)-4-carboxy-1-(((1S,2R)-1-carboxy-2-hydroxypropyl)amino)-1-oxobutan-2-yl)carbamoyl)pyrrolidin-1-yl)-5-oxopentanoic Acid

(S)-4-((S)-1-(L-Lysyl-L-prolyl-L-prolyl-L-threonyl-L-prolyl-L-prolyl)pyrrolidine-2-carboxamido)-5-((S)-2-(((S)-4-carboxy-1-(((1S,2R)-1-carboxy-2-hydroxypropyl)amino)-1-oxobutan-2-yl)carbamoyl)pyrrolidin-1-yl)-5-oxopentanoic Acid

  • Catalogue No.:PA PEP 004322

  • CAS :

    75813-50-2

  • Molecular Formula : C54H84N12O18

  • Molecular Weight : 1189.33

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004324

(5S,8S,11S)-5,8-Diisobutyl-11-(naphthalen-2-ylcarbamoyl)-3,6,9-trioxo-1-phenyl-2-oxa-4,7,10-triazatetradecan-14-oic Acid

(5S,8S,11S)-5,8-Diisobutyl-11-(naphthalen-2-ylcarbamoyl)-3,6,9-trioxo-1-phenyl-2-oxa-4,7,10-triazatetradecan-14-oic Acid

  • Catalogue No.:PA PEP 004324

  • CAS :

    75873-85-7

  • Molecular Formula : C35H44N4O7

  • Molecular Weight : 632.76

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004325

L-Tyrosyl-D-alanylglycyl-L-phenylalanyl-L-leucyl-D-arginyl-L-arginyl-L-isoleucyl-L-arginyl-L-prolyl-L-lysyl-L-leucyl-L-lysine

L-Tyrosyl-D-alanylglycyl-L-phenylalanyl-L-leucyl-D-arginyl-L-arginyl-L-isoleucyl-L-arginyl-L-prolyl-L-lysyl-L-leucyl-L-lysine

  • Catalogue No.:PA PEP 004325

  • CAS :

    75921-88-9

  • Molecular Formula : C76H128N24O15

  • Molecular Weight : 1618.01

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004326

L-Glutamyl-L-threonyl-L-tyrosyl-L-seryl-L-lysine

L-Glutamyl-L-threonyl-L-tyrosyl-L-seryl-L-lysine

  • Catalogue No.:PA PEP 004326

  • CAS :

    76021-78-8

  • Molecular Formula : C27H42N6O11

  • Molecular Weight : 626.66

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004327

(3-(Furan-2-yl)acryloyl)-L-alanyl-L-arginine

(3-(Furan-2-yl)acryloyl)-L-alanyl-L-arginine

  • Catalogue No.:PA PEP 004327

  • CAS :

    76079-06-6

  • Molecular Formula : C16H23N5O5

  • Molecular Weight : 365.39

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004328

((4R,7S,13S,16R)-16-Amino-13-(2-amino-2-oxoethyl)-7-(3-guanidinopropyl)-6,9,12,15-tetraoxo-1,2-dithia-5,8,11,14-tetraazacycloheptadecane-4-carbonyl)glycine

((4R,7S,13S,16R)-16-Amino-13-(2-amino-2-oxoethyl)-7-(3-guanidinopropyl)-6,9,12,15-tetraoxo-1,2-dithia-5,8,11,14-tetraazacycloheptadecane-4-carbonyl)glycine

  • Catalogue No.:PA PEP 004328

  • CAS :

    760947-20-4

  • Molecular Formula : C20H34N10O8S2

  • Molecular Weight : 606.67

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004329

Methyl L-arginyl-L-prolyl-L-lysyl-L-prolyl-L-glutaminyl-L-glutaminyl-L-phenylalanyl-L-phenylalanylglycyl-L-leucyl-L-methioninate

Methyl L-arginyl-L-prolyl-L-lysyl-L-prolyl-L-glutaminyl-L-glutaminyl-L-phenylalanyl-L-phenylalanylglycyl-L-leucyl-L-methioninate

  • Catalogue No.:PA PEP 004329

  • CAS :

    76260-78-1

  • Molecular Formula : C64H99N17O14S

  • Molecular Weight : 1362.66

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004330

(2S,4R)-1-(L-Alanyl)-4-hydroxypyrrolidine-2-carboxylic Acid

(2S,4R)-1-(L-Alanyl)-4-hydroxypyrrolidine-2-carboxylic Acid

  • Catalogue No.:PA PEP 004330

  • CAS :

    76400-25-4

  • Molecular Formula : C8H14N2O4

  • Molecular Weight : 202.21

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004331

Benzyl (S)-(2-((2-((5-guanidino-1-oxo-1-((2-oxo-4-(trifluoromethyl)-2H-chromen-7-yl)amino)pentan-2-yl)amino)-2-oxoethyl)amino)-2-oxoethyl)carbamate

Benzyl (S)-(2-((2-((5-guanidino-1-oxo-1-((2-oxo-4-(trifluoromethyl)-2H-chromen-7-yl)amino)pentan-2-yl)amino)-2-oxoethyl)amino)-2-oxoethyl)carbamate

  • Catalogue No.:PA PEP 004331

  • CAS :

    76409-80-8

  • Molecular Formula : C28H30F3N7O7

  • Molecular Weight : 633.59

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004334

4-(((S)-1-((S)-2-(((2S,5S,8S,11S,14S,17S)-14-((1H-Imidazol-5-yl)methyl)-2-(4-hydroxybenzyl)-8,11-diisobutyl-5-isopropyl-1-((4-methyl-2-oxo-2H-chromen-7-yl)amino)-1,4,7,10,13,16-hexaoxo-18-phenyl-3,6,9,12,15-pentaazaoctadecan-17-yl)carbamoyl)pyrrolidin-1-yl)-5-guanidino-1-oxopentan-2-yl)amino)-4-oxobutanoic Acid

4-(((S)-1-((S)-2-(((2S,5S,8S,11S,14S,17S)-14-((1H-Imidazol-5-yl)methyl)-2-(4-hydroxybenzyl)-8,11-diisobutyl-5-isopropyl-1-((4-methyl-2-oxo-2H-chromen-7-yl)amino)-1,4,7,10,13,16-hexaoxo-18-phenyl-3,6,9,12,15-pentaazaoctadecan-17-yl)carbamoyl)pyrrolidin-1-yl)-5-guanidino-1-oxopentan-2-yl)amino)-4-oxobutanoic Acid

  • Catalogue No.:PA PEP 004334

  • CAS :

    76524-84-0

  • Molecular Formula : C66H88N14O14

  • Molecular Weight : 1301.51

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Drug Reference Standards & Impurity Synthesis in India
PA PEP 004335

L-Tyrosylglycylglycyl-L-phenylalanyl-L-methionyl-L-arginyl-L-arginyl-L-valylglycyl-L-arginyl-L-prolyl-L-α-glutamyl-L-tryptophyl-L-tryptophyl-L-methionyl-L-α-aspartyl-L-tyrosyl-L-glutaminyl-L-lysyl-L-arginyl-L-tyrosylglycine

L-Tyrosylglycylglycyl-L-phenylalanyl-L-methionyl-L-arginyl-L-arginyl-L-valylglycyl-L-arginyl-L-prolyl-L-α-glutamyl-L-tryptophyl-L-tryptophyl-L-methionyl-L-α-aspartyl-L-tyrosyl-L-glutaminyl-L-lysyl-L-arginyl-L-tyrosylglycine

  • Catalogue No.:PA PEP 004335

  • CAS :

    76622-26-9

  • Molecular Formula : C130H184N38O31S2

  • Molecular Weight : 2839.26

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