acetylcysteine and its Impurities

A metaolite of methyl isocynate, Acetylcysteine is used in the treatment of paracetamol (acetaminophen) overdose, chronic obstructive pulmonary disease. Reference standards of Acetylcysteine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 43 results for acetylcysteine Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 01 17000

Acetylcysteine

Acetylcysteine

  • Catalogue No.:PA 01 17000

  • CAS :

    616-91-1

  • Molecular Formula : C5H9NO3S

  • Molecular Weight : 163.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17010

Acetylcysteine - Impurity A

L-Cystine

  • Catalogue No.:PA 01 17010

  • CAS :

    56-89-3

  • Molecular Formula : C6H12N2O4S2

  • Molecular Weight : 240.30

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17020

Acetylcysteine - Impurity B

L-Cysteine

  • Catalogue No.:PA 01 17020

  • CAS :

    52-90-4

  • Molecular Formula : C3H7NO2S

  • Molecular Weight : 121.16

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17030

Acetylcysteine - Impurity C

N,N'-Diacetyl-L-cystine

  • Catalogue No.:PA 01 17030

  • CAS :

    5545-17-5

  • Molecular Formula : C10H16N2O6S2

  • Molecular Weight :  324.37

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17040

Acetylcysteine - Impurity D

N,S-Diacetyl-L-Cysteine

  • Catalogue No.:PA 01 17040

  • CAS :

    18725-37-6

  • Molecular Formula : C7H11NO4S

  • Molecular Weight :  205.23

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17510

N-Acetyl-S-propyl-L-cysteine

N-Acetyl-S-propyl-L-cysteine

  • Catalogue No.:PA 01 17510

  • CAS :

    14402-54-1

  • Molecular Formula : C8H15NO3S

  • Molecular Weight : 205.27

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17520

N-Acetyl-S-(2-acetylaminoethyl)-L-cysteine

N-Acetyl-S-(2-acetylaminoethyl)-L-cysteine

  • Catalogue No.:PA 01 17520

  • CAS :

    25515-72-4

  • Molecular Formula : C9H16N2O4S

  • Molecular Weight :  248.3

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17530

N-Acetyl-S-(2-carboxyethyl)-L-cysteine Bis(dicyclohexylamine) Salt

N-Acetyl-S-(2-carboxyethyl)-L-cysteine Bis(dicyclohexylamine) Salt

  • Catalogue No.:PA 01 17530

  • CAS :

    201666-27-5

  • Molecular Formula : C32H59N3O5S

  • Molecular Weight : 597.9

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17540

N-Acetyl-β-alanine N-Hydroxysuccinimide Ester

N-Acetyl-β-alanine N-Hydroxysuccinimide Ester

  • Catalogue No.:PA 01 17540

  • CAS :

    154194-69-1

  • Molecular Formula : C9H12N2O5

  • Molecular Weight :  228.2

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17550

N-Acetyl-S-allyl-L-cysteine

N-Acetyl-S-allyl-L-cysteine

  • Catalogue No.:PA 01 17550

  • CAS :

    23127-41-5

  • Molecular Formula : C8H13NO3S

  • Molecular Weight : 203.26

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17560

2-Methyl-2-thiazoline-4-carboxylic Acid Sodium Salt

2-Methyl-2-thiazoline-4-carboxylic Acid Sodium Salt

  • Catalogue No.:PA 01 17560

  • CAS :

    15058-19-2

  • Molecular Formula : C5H6NNaO2S

  • Molecular Weight : 167.16

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Drug Reference Standards & Impurity Synthesis in India
PA USP1009005

Acetylcysteine (1009005)

Acetylcysteine (1009005)

  • Catalogue No.:PA USP1009005

  • CAS :

    616-91-1

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA BP907RB

acetylcysteine (907RB)

acetylcysteine (907RB)

  • Catalogue No.:PA BP907RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPA0152000

Acetylcysteine impurity C (A0152000)

Acetylcysteine impurity C (A0152000)

  • Catalogue No.:PA EPA0152000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPA0150000

Acetylcysteine (A0150000)

Acetylcysteine (A0150000)

  • Catalogue No.:PA EPA0150000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA EPA0153000

Acetylcysteine impurity D (A0153000)

Acetylcysteine impurity D (A0153000)

  • Catalogue No.:PA EPA0153000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17570

S-Acetylcysteine

S-Acetylcysteine

  • Catalogue No.:PA 01 17570

  • CAS :

    60333-15-5

  • Molecular Formula : C5H9NO3S

  • Molecular Weight : 163.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17580

N-Acetyl-S-(((S)-2-amino-2-carboxyethyl)thio)-D-cysteine

N-Acetyl-S-(((S)-2-amino-2-carboxyethyl)thio)-D-cysteine

  • Catalogue No.:PA 01 17580

  • CAS :

    908574-14-1

  • Molecular Formula : C8H14N2O5S2

  • Molecular Weight : 282.33

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17590

Acetyl(sulfo)-D-alanine

Acetyl(sulfo)-D-alanine

  • Catalogue No.:PA 01 17590

  • CAS :

    79560-92-2

  • Molecular Formula : C5H9NO6S

  • Molecular Weight : 211.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17600

Acetoxycysteine

Acetoxycysteine

  • Catalogue No.:PA 01 17600

  • CAS :

    NA

  • Molecular Formula : C5H9NO4S

  • Molecular Weight : 179.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17610

Acetyl(sulfino)-D-alanine

Acetyl(sulfino)-D-alanine

  • Catalogue No.:PA 01 17610

  • CAS :

    282727-77-9

  • Molecular Formula : C5H9NO5S

  • Molecular Weight : 195.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 17620

N,N’-Diacetyl-L-lanthionine Disodium Salt

N,N’-Diacetyl-L-lanthionine Disodium Salt

  • Catalogue No.:PA 01 17620

  • CAS :

    NA

  • Molecular Formula : C10H14N2Na2O6S

  • Molecular Weight : 336.27

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088611

N-Acetyl-S-(3-amino-3-oxopropyl-1,1,2,2-d4)-L-cysteine

N-Acetyl-S-(3-amino-3-oxopropyl-1,1,2,2-d4)-L-cysteine

  • Catalogue No.:PA STI 088611

  • CAS :

    NA

  • Molecular Formula : C8H10D4N2O4S

  • Molecular Weight : 238.29

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088612

N-Acetyl-S-((phenyl-d5)methyl)-L-cysteine

N-Acetyl-S-((phenyl-d5)methyl)-L-cysteine

  • Catalogue No.:PA STI 088612

  • CAS :

    1955496-81-7

  • Molecular Formula : C12H10D5NO3S

  • Molecular Weight : 258.35

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088614

Acetylalanine-2,3,3,3-d4

Acetylalanine-2,3,3,3-d4

  • Catalogue No.:PA STI 088614

  • CAS :

    NA

  • Molecular Formula : C5H5D4NO3

  • Molecular Weight : 135.16

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088615

Acetyl-L-alanine-3,3,3-d3

Acetyl-L-alanine-3,3,3-d3

  • Catalogue No.:PA STI 088615

  • CAS :

    1485548-36-4

  • Molecular Formula : C5H6D3NO3

  • Molecular Weight : 134.15

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088616

Acetylalanine-3,3,3-d3

Acetylalanine-3,3,3-d3

  • Catalogue No.:PA STI 088616

  • CAS :

    NA

  • Molecular Formula : C5H6D3NO3

  • Molecular Weight : 134.15

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088619

N-Acetyl-S-phenylcysteine-3,3-d2

N-Acetyl-S-phenylcysteine-3,3-d2

  • Catalogue No.:PA STI 088619

  • CAS :

    NA

  • Molecular Formula : C11H11D2NO3S

  • Molecular Weight : 241.3

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088569

N-Acetyl-S-benzyl-2,3,4,5,6-d5-DL-cysteine

N-Acetyl-S-benzyl-2,3,4,5,6-d5-DL-cysteine

  • Catalogue No.:PA STI 088569

  • CAS :

    NA

  • Molecular Formula : C12H10D5NO3S

  • Molecular Weight : 258.35

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088570

N-Acetyl-S-(2-carbamoylethyl-d4)-L-cysteine

N-Acetyl-S-(2-carbamoylethyl-d4)-L-cysteine

  • Catalogue No.:PA STI 088570

  • CAS :

    NA

  • Molecular Formula : C8H10D4N2O4S

  • Molecular Weight : 238.29

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171000

N-Acetyl-D-cysteine

N-Acetyl-D-cysteine

  • Catalogue No.:PA 01 0171000

  • CAS :

    26117-28-2

  • Molecular Formula : C5H9NO3S

  • Molecular Weight : 163.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171001

N-Acetylcysteamine

N-Acetylcysteamine

  • Catalogue No.:PA 01 0171001

  • CAS :

    1190-73-4

  • Molecular Formula : C4H9NOS

  • Molecular Weight : 119.18

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171003

(4S)-2-Hydroxy-2-methylthiazolidine-4-carboxylic Acid

(4S)-2-Hydroxy-2-methylthiazolidine-4-carboxylic Acid

  • Catalogue No.:PA 01 0171003

  • CAS :

    NA

  • Molecular Formula : C5H9NO3S

  • Molecular Weight : 163.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171002

N-Acetyl-N-nitroso-L-cysteine

N-Acetyl-N-nitroso-L-cysteine

  • Catalogue No.:PA 01 0171002

  • CAS :

    NA

  • Molecular Formula : C5H8N2O4S

  • Molecular Weight : 192.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171004

N-Acetyl-S-propionyl-L-cysteine

N-Acetyl-S-propionyl-L-cysteine

  • Catalogue No.:PA 01 0171004

  • CAS :

    7280-90-2

  • Molecular Formula : C8H13NO4S

  • Molecular Weight : 219.26

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171005

N,S-Bis(3-hydroxypropyl)-L-cysteine

N,S-Bis(3-hydroxypropyl)-L-cysteine

  • Catalogue No.:PA 01 0171005

  • CAS :

    NA

  • Molecular Formula : C9H19NO4S

  • Molecular Weight : 237.31

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171006

N-Acetyl-S-(3-oxopropyl)-L-cysteine

N-Acetyl-S-(3-oxopropyl)-L-cysteine

  • Catalogue No.:PA 01 0171006

  • CAS :

    140226-30-8

  • Molecular Formula : C8H13NO4S

  • Molecular Weight : 219.26

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171007

2-Methylthiazolidine-4-carboxylic Acid

2-Methylthiazolidine-4-carboxylic Acid

  • Catalogue No.:PA 01 0171007

  • CAS :

    4165-32-6

  • Molecular Formula : C5H9NO2S

  • Molecular Weight : 147.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171008

(4R)-2-Methylthiazolidine-4-carboxylic Acid

(4R)-2-Methylthiazolidine-4-carboxylic Acid

  • Catalogue No.:PA 01 0171008

  • CAS :

    190062-99-8

  • Molecular Formula : C5H9NO2S

  • Molecular Weight : 147.19

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Drug Reference Standards & Impurity Synthesis in India
PA BSC 0170101034

Acetylcysteine (BSC)

Acetylcysteine (BSC)

  • Catalogue No.:PA BSC 0170101034

  • CAS :

    616-91-1 (BSC)

  • Molecular Formula : C5H9NO3S

  • Molecular Weight : 163.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171009

Sulfinoalanine

Sulfinoalanine

  • Catalogue No.:PA 01 0171009

  • CAS :

    2381-08-0

  • Molecular Formula : C3H7NO4S

  • Molecular Weight : 153.15

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171010

N-Acetyl-S-(3-amino-2-hydroxy-3-oxopropyl)-L-cysteine

N-Acetyl-S-(3-amino-2-hydroxy-3-oxopropyl)-L-cysteine

  • Catalogue No.:PA 01 0171010

  • CAS :

    137698-08-9

  • Molecular Formula : C8H14N2O5S

  • Molecular Weight : 250.27

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0171011

N-Acetyl-S-(1-carbamoyl-2-hydroxyethyl)-L-cysteine

N-Acetyl-S-(1-carbamoyl-2-hydroxyethyl)-L-cysteine

  • Catalogue No.:PA 01 0171011

  • CAS :

    137698-09-0

  • Molecular Formula : C8H14N2O5S

  • Molecular Weight : 250.27

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