Cysteine-impurities | Pharmaffiliates

cysteine and its Impurities

cysteine to produce the antioxidant glutathione, as well as the amino acid taurine. The body can also convert cysteine into glucose for a source of energy. Reference standards of Cysteine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 21 results for cysteine Impurities
PA STI 088099

S-(3-Hydroxypropyl)-L-cysteine-d6

S-(3-Hydroxypropyl)-L-cysteine-d6


  • Catalogue No.:PA STI 088099

  • CAS :

    NA

  • Molecular Formula : C6H7D6NO3S

  • Molecular Weight : 185.27

PA STI 088100

S-(N-Methyl-d3-carbamoyl)-L-cysteine

S-(N-Methyl-d3-carbamoyl)-L-cysteine


  • Catalogue No.:PA STI 088100

  • CAS :

    127633-26-5

  • Molecular Formula : C5H7D3N2O3S

  • Molecular Weight : 181.23

PA STI 088101

S-Methyl-L-cysteine-d3

S-Methyl-L-cysteine-d3


  • Catalogue No.:PA STI 088101

  • CAS :

    1331907-56-2

  • Molecular Formula : C4H6D3NO2S

  • Molecular Weight : 138.20

PA EPC3290000

Cysteine hydrochloride monohydrate (C3290000)

Cysteine hydrochloride monohydrate (C3290000)


  • Catalogue No.:PA EPC3290000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 30 30530

DL-Cysteine

DL-Cysteine


  • Catalogue No.:PA 30 30530

  • CAS :

    3374-22-9

  • Molecular Formula : C3H7NO2S

  • Molecular Weight : 121.15

PA 30 30540

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

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


  • Catalogue No.:PA 30 30540

  • CAS :

    81690-92-8

  • Molecular Formula : C8H14N2O4S

  • Molecular Weight : 234.27

PA 03 3470000

cysteine - API

cysteine


  • Catalogue No.:PA 03 3470000

  • CAS :

    52-90-4

  • Molecular Formula : C3H7NO2S

  • Molecular Weight : 121.15

PA 03 3471000

S-Benzyl-N-Stearoyl-L-cysteine

S-Benzyl-N-Stearoyl-L-cysteine


  • Catalogue No.:PA 03 3471000

  • CAS :

    40379-70-2

  • Molecular Formula : C28H47NO3S

  • Molecular Weight : 477.75

PA 03 3471001

N-Acetyl-L-cysteine Allyl Ester

N-Acetyl-L-cysteine Allyl Ester


  • Catalogue No.:PA 03 3471001

  • CAS :

    145452-04-6

  • Molecular Formula : C8H13NO3S

  • Molecular Weight : 203.26

PA 03 3471002

N-Acetyl-S-(3-carboxy-2-propyl)-L-cysteine Disodium Salt (Mixture of Diastereomers)

N-Acetyl-S-(3-carboxy-2-propyl)-L-cysteine Disodium Salt (Mixture of Diastereomers)


  • Catalogue No.:PA 03 3471002

  • CAS :

    1041285-62-4

  • Molecular Formula : C9H13NNa2O5S

  • Molecular Weight : 293.24

PA 03 3471003

N-Propionyl-L-cysteine

N-Propionyl-L-cysteine


  • Catalogue No.:PA 03 3471003

  • CAS :

    2885-79-2

  • Molecular Formula : C6H11NO3S

  • Molecular Weight : 177.22

PA 03 3471004

S-Allyl-L-cysteine

S-Allyl-L-cysteine


  • Catalogue No.:PA 03 3471004

  • CAS :

    21593-77-1

  • Molecular Formula : C6H11NO2S

  • Molecular Weight : 161.22

PA 03 3471005

(E)-4-Hydroxycrotonoic acid ethyl ester

(E)-4-Hydroxycrotonoic acid ethyl ester


  • Catalogue No.:PA 03 3471005

  • CAS :

    10080-68-9

  • Molecular Formula : C6H10O3

  • Molecular Weight : 130.14

PA 03 3471006

N,N’-Diacetyl-L-cystine bis(tert-butyl) diester

N,N’-Diacetyl-L-cystine bis(tert-butyl) diester


  • Catalogue No.:PA 03 3471006

  • CAS :

    1079950-07-4

  • Molecular Formula : C18H32N2O6S2

  • Molecular Weight : 436.58

PA 03 3471007

(Allylsulfinyl)-D-alanine

(Allylsulfinyl)-D-alanine


  • Catalogue No.:PA 03 3471007

  • CAS :

    17795-26-5

  • Molecular Formula : C6H11NO3S

  • Molecular Weight : 177.22

PA 03 3471008

Alliin

Alliin


  • Catalogue No.:PA 03 3471008

  • CAS :

    556-27-4

  • Molecular Formula : C6H11NO3S

  • Molecular Weight : 177.22

PA 03 3471009

S-Methyl-L-cysteine

S-Methyl-L-cysteine


  • Catalogue No.:PA 03 3471009

  • CAS :

    1187-84-4

  • Molecular Formula : C4H9NO2S

  • Molecular Weight : 135.18

PA 03 3471010

L-γ-Glutamyl-(S)-Allyl-Cysteine

L-γ-Glutamyl-(S)-Allyl-Cysteine


  • Catalogue No.:PA 03 3471010

  • CAS :

    91216-95-4

  • Molecular Formula : C11H18N2O5S

  • Molecular Weight : 290.33

PA 03 3471011

(2-((Carboxymethyl)thio)acetyl)homocysteine

(2-((Carboxymethyl)thio)acetyl)homocysteine


  • Catalogue No.:PA 03 3471011

  • CAS :

    121213-21-6

  • Molecular Formula : C8H13NO5S2

  • Molecular Weight : 267.31

PA 03 3471012

Sodium acetyl(sulfinato)-D-alaninate

Sodium acetyl(sulfinato)-D-alaninate


  • Catalogue No.:PA 03 3471012

  • CAS :

    NA

  • Molecular Formula : C5H7NNa2O5S

  • Molecular Weight : 239.15

PA IPRSA017

N-Acetyl L-Cysteine (IPRSA017) - from IPC

N-Acetyl L-Cysteine (IPRSA017) - from IPC


  • Catalogue No.:PA IPRSA017

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA