Difelikefalin and its Impurities

Difelikefalin, sold under the brand name Korsuva, is an analgesic opioid peptide used for the treatment of moderate to severe itching. Reference standards of Difelikefalin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 23 results for Difelikefalin Impurities
PA 04 2820000

Difelikefalin

Difelikefalin

  • Catalogue No.:PA 04 2820000

  • CAS :

    1024828-77-0

  • Molecular Formula : C36H53N7O6

  • Molecular Weight : 679.86

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PA 04 2821000

4-Amino-4-carboxypiperidine

4-Amino-4-carboxypiperidine

  • Catalogue No.:PA 04 2821000

  • CAS :

    40951-39-1

  • Molecular Formula : C6H12N2O2

  • Molecular Weight : 144.17

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PA PEP 001133

1-(N2-D-phenylalanyl-D-phenylalanyl-D-leucyl-N6-acetyl-D-lysyl)-4-aminopiperidine-4-carboxylic acid

1-(N2-D-phenylalanyl-D-phenylalanyl-D-leucyl-N6-acetyl-D-lysyl)-4-aminopiperidine-4-carboxylic acid

  • Catalogue No.:PA PEP 001133

  • CAS :

    NA

  • Molecular Formula : C38H55N7O7

  • Molecular Weight : 721.9

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PA PEP 001134

1-(Acetyl-D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

1-(Acetyl-D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001134

  • CAS :

    NA

  • Molecular Formula : C38H55N7O7

  • Molecular Weight : 721.9

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PA PEP 001135

1-(D-Phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-acetamidopiperidine-4-carboxylic Acid

1-(D-Phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-acetamidopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001135

  • CAS :

    NA

  • Molecular Formula : C38H55N7O7

  • Molecular Weight : 721.9

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PA PEP 001136

1-(N2-D-Phenylalanyl-D-phenylalanyl-D-leucyl-N6-acetyl-D-lysyl)-4-acetamidopiperidine-4-carboxylic Acid

1-(N2-D-Phenylalanyl-D-phenylalanyl-D-leucyl-N6-acetyl-D-lysyl)-4-acetamidopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001136

  • CAS :

    NA

  • Molecular Formula : C40H57N7O8

  • Molecular Weight : 763.94

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PA PEP 001137

1-(N6-Acetyl-N2-acetyl-D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

1-(N6-Acetyl-N2-acetyl-D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001137

  • CAS :

    NA

  • Molecular Formula : C40H57N7O8

  • Molecular Weight : 763.94

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PA PEP 001138

4-Acetamido-1-(acetyl-D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)piperidine-4-carboxylic Acid

4-Acetamido-1-(acetyl-D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)piperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001138

  • CAS :

    NA

  • Molecular Formula : C40H57N7O8

  • Molecular Weight : 763.94

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PA PEP 001139

4-Acetamido-1-(N6-acetyl-N2-acetyl-D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)piperidine-4-carboxylic Acid

4-Acetamido-1-(N6-acetyl-N2-acetyl-D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)piperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001139

  • CAS :

    NA

  • Molecular Formula : C42H59N7O9

  • Molecular Weight : 805.97

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PA PEP 001140

4-Amino-1-((R)-2-((R)-2-((R)-2-((R)-2-amino-3-phenylpropanamido)-3-phenylpropanamido)-4-methylpentanamido)-6-oxohexanoyl)piperidine-4-carboxylic Acid

4-Amino-1-((R)-2-((R)-2-((R)-2-((R)-2-amino-3-phenylpropanamido)-3-phenylpropanamido)-4-methylpentanamido)-6-oxohexanoyl)piperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001140

  • CAS :

    NA

  • Molecular Formula : C36H50N6O7

  • Molecular Weight : 678.83

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PA PEP 001141

4-Amino-1-((R)-2-((R)-2-((R)-2-((R)-2-amino-3-phenylpropanamido)-3-phenylpropanamido)-4-methylpentanamido)-5-carboxypentanoyl)piperidine-4-carboxylic Acid

4-Amino-1-((R)-2-((R)-2-((R)-2-((R)-2-amino-3-phenylpropanamido)-3-phenylpropanamido)-4-methylpentanamido)-5-carboxypentanoyl)piperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001141

  • CAS :

    NA

  • Molecular Formula : C36H50N6O8

  • Molecular Weight : 694.83

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PA PEP 001142

D-Phenylalanyl-D-phenylalanyl-D-leucyl-D-lysine

D-Phenylalanyl-D-phenylalanyl-D-leucyl-D-lysine

  • Catalogue No.:PA PEP 001142

  • CAS :

    NA

  • Molecular Formula : C30H43N5O5

  • Molecular Weight : 553.7

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PA PEP 001143

1-(D-Lysyl)-4-aminopiperidine-4-carboxylic Acid

1-(D-Lysyl)-4-aminopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001143

  • CAS :

    NA

  • Molecular Formula : C12H24N4O3

  • Molecular Weight : 272.35

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PA PEP 001144

D-Phenylalanyl-D-leucine

D-Phenylalanyl-D-leucine

  • Catalogue No.:PA PEP 001144

  • CAS :

    123442-34-2

  • Molecular Formula : C15H22N2O3

  • Molecular Weight : 278.35

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PA PEP 001145

D-Phenylalanyl-D-phenylalanyl-D-leucine

D-Phenylalanyl-D-phenylalanyl-D-leucine

  • Catalogue No.:PA PEP 001145

  • CAS :

    2219351-85-4

  • Molecular Formula : C24H31N3O4

  • Molecular Weight : 425.53

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PA PEP 001146

1-(D-Leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

1-(D-Leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001146

  • CAS :

    NA

  • Molecular Formula : C18H35N5O4

  • Molecular Weight : 385.51

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PA PEP 001147

1-(D-Phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

1-(D-Phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001147

  • CAS :

    NA

  • Molecular Formula : C27H44N6O5

  • Molecular Weight : 532.69

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PA PEP 001148

D-Phenylalanyl-D-phenylalanine

D-Phenylalanyl-D-phenylalanine

  • Catalogue No.:PA PEP 001148

  • CAS :

    58607-69-5

  • Molecular Formula : C18H20N2O3

  • Molecular Weight : 312.37

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PA PEP 001149

D-Phenylalanyl-D-leucyl-D-lysine

D-Phenylalanyl-D-leucyl-D-lysine

  • Catalogue No.:PA PEP 001149

  • CAS :

    NA

  • Molecular Formula : C21H34N4O4

  • Molecular Weight : 406.53

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PA PEP 001150

1-(N2-D-Phenylalanyl-D-phenylalanyl-D-leucyl-N6-(1-(D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carbonyl)-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

1-(N2-D-Phenylalanyl-D-phenylalanyl-D-leucyl-N6-(1-(D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carbonyl)-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001150

  • CAS :

    NA

  • Molecular Formula : C72H104N14O11

  • Molecular Weight : 1341.71

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PA PEP 001151

1-(D-Phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-(1-(D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxamido)piperidine-4-carboxylic Acid

1-(D-Phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-(1-(D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carboxamido)piperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001151

  • CAS :

    NA

  • Molecular Formula : C72H104N14O11

  • Molecular Weight : 1341.71

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PA PEP 001152

1-(N2-D-Phenylalanyl-D-phenylalanyl-D-leucyl-N6-(1-(N2-D-phenylalanyl-D-phenylalanyl-D-leucyl-N6-(1-(D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carbonyl)-D-lysyl)-4-aminopiperidine-4-carbonyl)-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

1-(N2-D-Phenylalanyl-D-phenylalanyl-D-leucyl-N6-(1-(N2-D-phenylalanyl-D-phenylalanyl-D-leucyl-N6-(1-(D-phenylalanyl-D-phenylalanyl-D-leucyl-D-lysyl)-4-aminopiperidine-4-carbonyl)-D-lysyl)-4-aminopiperidine-4-carbonyl)-D-lysyl)-4-aminopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001152

  • CAS :

    NA

  • Molecular Formula : C108H155N21O16

  • Molecular Weight : 2003.56

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PA PEP 001153

1-(L-Phenylalanyl-L-phenylalanyl-L-leucyl-L-lysyl)-4-aminopiperidine-4-carboxylic Acid

1-(L-Phenylalanyl-L-phenylalanyl-L-leucyl-L-lysyl)-4-aminopiperidine-4-carboxylic Acid

  • Catalogue No.:PA PEP 001153

  • CAS :

    2742623-84-1

  • Molecular Formula : C36H53N7O6

  • Molecular Weight : 679.86

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CPHI INDIA- 28, 30 November