Cysteine-impurities | Pharmaffiliates

cysteine

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.

stdClass Object
(
    [pname] => S-(N-Methyl-d3-carbamoyl)-L-cysteine
    [catalogue_number] => PA STI 088100
    [category_ids] => ,97,98,76,75,
    [chemical_name] => 
    [weight] => 181.23
    [form] => C5H7D3N2O3S
    [cas] => 127633-26-5
    [pslug] => 127633-26-5-s-n-methyl-d3-carbamoyl-l-cysteine-pasti088100
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PA STI 088100

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


  • Catalogue No.:PA STI 088100

  • CAS :

    127633-26-5

  • Molecular Formula : C5H7D3N2O3S

  • Molecular Weight : 181.23

stdClass Object
(
    [pname] => cysteine - API Standards 
    [catalogue_number] => PA 03 3470000
    [category_ids] => ,75,76,78,82,97,
    [chemical_name] => 
    [weight] => 121.15
    [form] => C3H7NO2S
    [cas] => 52-90-4
    [pslug] => 52-90-4-cysteine-pa033470000
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PA 03 3470000

cysteine - API Standards


  • Catalogue No.:PA 03 3470000

  • CAS :

    52-90-4

  • Molecular Formula : C3H7NO2S

  • Molecular Weight : 121.15

stdClass Object
(
    [pname] => S-Benzyl-N-Stearoyl-L-cysteine
    [catalogue_number] => PA 03 3471000
    [category_ids] => ,78,75,76,82,
    [chemical_name] => 
    [weight] => 477.75
    [form] => C28H47NO3S
    [cas] => 40379-70-2
    [pslug] => 40379-70-2-s-benzyl-n-stearoyl-l-cysteine-pa033471000
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PA 03 3471000

S-Benzyl-N-Stearoyl-L-cysteine


  • Catalogue No.:PA 03 3471000

  • CAS :

    40379-70-2

  • Molecular Formula : C28H47NO3S

  • Molecular Weight : 477.75

stdClass Object
(
    [pname] => N-Acetyl-L-cysteine Allyl Ester
    [catalogue_number] => PA 03 3471001
    [category_ids] => ,78,75,76,82,
    [chemical_name] => 
    [weight] => 203.26
    [form] => C8H13NO3S
    [cas] => 145452-04-6
    [pslug] => 145452-04-6-n-acetyl-l-cysteine-allyl-ester-pa033471001
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PA 03 3471001

N-Acetyl-L-cysteine Allyl Ester


  • Catalogue No.:PA 03 3471001

  • CAS :

    145452-04-6

  • Molecular Formula : C8H13NO3S

  • Molecular Weight : 203.26

stdClass Object
(
    [pname] => N-Acetyl-S-(3-carboxy-2-propyl)-L-cysteine Disodium Salt (Mixture of Diastereomers)
    [catalogue_number] => PA 03 3471002
    [category_ids] => ,78,75,76,82,
    [chemical_name] => 
    [weight] => 293.24
    [form] => C9H13NNa2O5S
    [cas] => 1041285-62-4
    [pslug] => 1041285-62-4-n-acetyl-s-3-carboxy-2-propyl-l-cysteine-disodium-salt-mixture-of-diastereomers-pa033471002
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PA 03 3471002

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

stdClass Object
(
    [pname] => N-Propionyl-L-cysteine
    [catalogue_number] => PA 03 3471003
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 177.22
    [form] => C6H11NO3S
    [cas] => 2885-79-2
    [pslug] => 2885-79-2-n-propionyl-l-cysteine-pa033471003
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PA 03 3471003

N-Propionyl-L-cysteine


  • Catalogue No.:PA 03 3471003

  • CAS :

    2885-79-2

  • Molecular Formula : C6H11NO3S

  • Molecular Weight : 177.22

stdClass Object
(
    [pname] => S-Allyl-L-cysteine
    [catalogue_number] => PA 03 3471004
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 161.22
    [form] =>  C6H11NO2S
    [cas] => 21593-77-1
    [pslug] => 21593-77-1-s-allyl-l-cysteine-pa033471004
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PA 03 3471004

S-Allyl-L-cysteine


  • Catalogue No.:PA 03 3471004

  • CAS :

    21593-77-1

  • Molecular Formula : C6H11NO2S

  • Molecular Weight : 161.22

stdClass Object
(
    [pname] => (E)-4-Hydroxycrotonoic acid ethyl ester
    [catalogue_number] => PA 03 3471005
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 130.14
    [form] => C6H10O3
    [cas] => 10080-68-9
    [pslug] => 10080-68-9-e-4-hydroxycrotonoic-acid-ethyl-ester-pa033471005
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PA 03 3471005

(E)-4-Hydroxycrotonoic acid ethyl ester


  • Catalogue No.:PA 03 3471005

  • CAS :

    10080-68-9

  • Molecular Formula : C6H10O3

  • Molecular Weight : 130.14

stdClass Object
(
    [pname] => N,N’-Diacetyl-L-cystine bis(tert-butyl) diester
    [catalogue_number] => PA 03 3471006
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 436.58
    [form] => C18H32N2O6S2
    [cas] => 1079950-07-4
    [pslug] => 1079950-07-4-n-n-diacetyl-l-cystine-bis-tert-butyl-diester-pa033471006
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PA 03 3471006

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

stdClass Object
(
    [pname] => (Allylsulfinyl)-D-alanine
    [catalogue_number] => PA 03 3471007
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 177.22
    [form] => C6H11NO3S
    [cas] => 17795-26-5
    [pslug] => 17795-26-5-allylsulfinyl-d-alanine-pa033471007
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PA 03 3471007

(Allylsulfinyl)-D-alanine


  • Catalogue No.:PA 03 3471007

  • CAS :

    17795-26-5

  • Molecular Formula : C6H11NO3S

  • Molecular Weight : 177.22

stdClass Object
(
    [pname] => Alliin
    [catalogue_number] => PA 03 3471008
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 177.22
    [form] => C6H11NO3S
    [cas] => 556-27-4
    [pslug] => 556-27-4-alliin-pa033471008
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PA 03 3471008

Alliin


  • Catalogue No.:PA 03 3471008

  • CAS :

    556-27-4

  • Molecular Formula : C6H11NO3S

  • Molecular Weight : 177.22

stdClass Object
(
    [pname] => S-Methyl-L-cysteine
    [catalogue_number] => PA 03 3471009
    [category_ids] => ,70,75,76,78,82,97,
    [chemical_name] => 
    [weight] => 135.18
    [form] => C4H9NO2S
    [cas] => 1187-84-4
    [pslug] => 1187-84-4-s-methyl-l-cysteine-pa033471009
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PA 03 3471009

S-Methyl-L-cysteine


  • Catalogue No.:PA 03 3471009

  • CAS :

    1187-84-4

  • Molecular Formula : C4H9NO2S

  • Molecular Weight : 135.18

stdClass Object
(
    [pname] => L-γ-Glutamyl-(S)-Allyl-Cysteine
    [catalogue_number] => PA 03 3471010
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 290.33
    [form] => C11H18N2O5S
    [cas] => 91216-95-4
    [pslug] => 91216-95-4-l-γ-glutamyl-s-allyl-cysteine-pa033471010
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PA 03 3471010

L-γ-Glutamyl-(S)-Allyl-Cysteine


  • Catalogue No.:PA 03 3471010

  • CAS :

    91216-95-4

  • Molecular Formula : C11H18N2O5S

  • Molecular Weight : 290.33

stdClass Object
(
    [pname] => (2-((Carboxymethyl)thio)acetyl)homocysteine
    [catalogue_number] => PA 03 3471011
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 267.31
    [form] => C8H13NO5S2
    [cas] => 121213-21-6
    [pslug] => 121213-21-6-2-carboxymethyl-thio-acetyl-homocysteine-pa033471011
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PA 03 3471011

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


  • Catalogue No.:PA 03 3471011

  • CAS :

    121213-21-6

  • Molecular Formula : C8H13NO5S2

  • Molecular Weight : 267.31

stdClass Object
(
    [pname] => Sodium acetyl(sulfinato)-D-alaninate
    [catalogue_number] => PA 03 3471012
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 239.15
    [form] => C5H7NNa2O5S
    [cas] => NA
    [pslug] => sodium-acetyl-sulfinato-d-alaninate-pa033471012
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PA 03 3471012

Sodium acetyl(sulfinato)-D-alaninate


  • Catalogue No.:PA 03 3471012

  • CAS :

    NA

  • Molecular Formula : C5H7NNa2O5S

  • Molecular Weight : 239.15

stdClass Object
(
    [pname] => N-Acetyl L-Cysteine (IPRSA017) - from IPC
    [catalogue_number] => PA IPRSA017
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => NA
    [form] => NA
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    [pslug] => n-acetyl-l-cysteine-iprsa017-from-ipc-paiprsa017
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N-Acetyl L-Cysteine (IPRSA017) - from IPC


  • Catalogue No.:PA IPRSA017

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

stdClass Object
(
    [pname] => D-Cysteine
    [catalogue_number] => PA 03 3471013
    [category_ids] => ,75,76,78,82,97,
    [chemical_name] => 
    [weight] => 121.15
    [form] => C3H7NO2S
    [cas] => 921-01-7
    [pslug] => 921-01-7-d-cysteine-pa033471013
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PA 03 3471013

D-Cysteine


  • Catalogue No.:PA 03 3471013

  • CAS :

    921-01-7

  • Molecular Formula : C3H7NO2S

  • Molecular Weight : 121.15