Levodopa-impurities | Pharmaffiliates

levodopa

Also known as L-Dopa which is an amino acid that acts as a precursor for neurotransmitters catecholamines (dopamine, norepinephrine, and epinephrine). Levodopa is used in the treatment of Parkinson's disease and dopamine-responsive dystonia. Reference standards of Levodopa API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

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(
    [pname] => Levodopa - API Standards 
    [catalogue_number] => PA 12 12000
    [category_ids] => 97,93,69,70,78,82
    [chemical_name] => 
    [weight] => 197.19
    [form] => C9H11NO4
    [cas] => 59-92-7
    [pslug] => 59-92-7-levodopa-api-pa1212000
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PA 12 12000

Levodopa - API Standards


  • Catalogue No.:PA 12 12000

  • CAS :

    59-92-7

  • Molecular Formula : C9H11NO4

  • Molecular Weight : 197.19

20% OFF
stdClass Object
(
    [pname] => Levodopa - Impurity B
    [catalogue_number] => PA 12 12020
    [category_ids] => ,97,78,70,82,
    [chemical_name] => 
    [weight] => 181.19
    [form] => C9H11NO3
    [cas] => 60-18-4
    [pslug] => 60-18-4-levodopa-impurity-b-pa1212020
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PA 12 12020

Levodopa - Impurity B


  • Catalogue No.:PA 12 12020

  • CAS :

    60-18-4

  • Molecular Formula : C9H11NO3

  • Molecular Weight : 181.19

stdClass Object
(
    [pname] => 4-Hydroxy-3-methoxymandelic Acid
    [catalogue_number] => PA 12 12510
    [category_ids] => ,80,76,75,78,70,82,
    [chemical_name] => 
    [weight] => 198.17
    [form] => C9H10O5
    [cas] => 55-10-7
    [pslug] => 55-10-7-4-hydroxy-3-methoxymandelic-acid-pa1212510
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PA 12 12510

4-Hydroxy-3-methoxymandelic Acid


  • Catalogue No.:PA 12 12510

  • CAS :

    55-10-7

  • Molecular Formula : C9H10O5

  • Molecular Weight : 198.17

stdClass Object
(
    [pname] => 3,4-Dihydroxy-DL-phenylalanine
    [catalogue_number] => PA 12 12520
    [category_ids] => ,80,79,78,70,82,
    [chemical_name] => 
    [weight] => 197.19
    [form] => C9H11NO4
    [cas] => 63-84-3
    [pslug] => 63-84-3-3-4-dihydroxy-dl-phenylalanine-pa1212520
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PA 12 12520

3,4-Dihydroxy-DL-phenylalanine


  • Catalogue No.:PA 12 12520

  • CAS :

    63-84-3

  • Molecular Formula : C9H11NO4

  • Molecular Weight : 197.19

stdClass Object
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    [pname] => 3-Acetyl-L-tyrosine Hydrochloride
    [catalogue_number] => PA 12 12530
    [category_ids] => ,97,80,75,78,70,82,
    [chemical_name] => 
    [weight] => 259.69
    [form] => C11H14ClNO4
    [cas] => 32404-28-7
    [pslug] => 32404-28-7-3-acetyl-l-tyrosine-hydrochloride-pa1212530
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PA 12 12530

3-Acetyl-L-tyrosine Hydrochloride


  • Catalogue No.:PA 12 12530

  • CAS :

    32404-28-7

  • Molecular Formula : C11H14ClNO4

  • Molecular Weight : 259.69

stdClass Object
(
    [pname] => 3-Acetyl-L-tyrosine Methyl Ester Hydrochloride
    [catalogue_number] => PA 12 12540
    [category_ids] => ,97,80,75,78,70,82,
    [chemical_name] => 
    [weight] => 273.71
    [form] =>   C12H16ClNO4
    [cas] => 57085-32-2
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PA 12 12540

3-Acetyl-L-tyrosine Methyl Ester Hydrochloride


  • Catalogue No.:PA 12 12540

  • CAS :

    57085-32-2

  • Molecular Formula :   C12H16ClNO4

  • Molecular Weight : 273.71

stdClass Object
(
    [pname] => 3-Acetyl-L-tyrosine
    [catalogue_number] => PA 12 12560
    [category_ids] => ,79,80,78,70,82,
    [chemical_name] => 
    [weight] => 223.23
    [form] => C11H13NO4
    [cas] => 32483-30-0
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PA 12 12560

3-Acetyl-L-tyrosine


  • Catalogue No.:PA 12 12560

  • CAS :

    32483-30-0

  • Molecular Formula : C11H13NO4

  • Molecular Weight : 223.23

stdClass Object
(
    [pname] => Levodopa - Impurity A
    [catalogue_number] => PA 12 12570
    [category_ids] => ,97,80,93,78,70,82,
    [chemical_name] => 
    [weight] => 213.19
    [form] => C9H11NO5
    [cas] => 27244-64-0
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PA 12 12570

Levodopa - Impurity A


  • Catalogue No.:PA 12 12570

  • CAS :

    27244-64-0

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

stdClass Object
(
    [pname] => 3-O-Methyl-L-DOPA-d3 Monohydrate
    [catalogue_number] => PA STI 061300
    [category_ids] => ,97,98,93,78,70,82,
    [chemical_name] => 
    [weight] => 232.25
    [form] => C10H12D3NO5
    [cas] => NA
    [pslug] => 3-o-methyl-l-dopa-d3-monohydrate-pasti061300
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PA STI 061300

3-O-Methyl-L-DOPA-d3 Monohydrate


  • Catalogue No.:PA STI 061300

  • CAS :

    NA

  • Molecular Formula : C10H12D3NO5

  • Molecular Weight : 232.25

stdClass Object
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    [pname] => 3-O-Methyl-L-DOPA-d3 Methyl Ester
    [catalogue_number] => PA STI 061310
    [category_ids] => ,97,98,93,78,70,82,
    [chemical_name] => 
    [weight] => 228.26
    [form] => C11H12D3NO4
    [cas] => 1795785-77-1
    [pslug] => 1795785-77-1-3-o-methyl-l-dopa-d3-methyl-ester-pasti061310
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PA STI 061310

3-O-Methyl-L-DOPA-d3 Methyl Ester


  • Catalogue No.:PA STI 061310

  • CAS :

    1795785-77-1

  • Molecular Formula : C11H12D3NO4

  • Molecular Weight : 228.26

stdClass Object
(
    [pname] => 3-O-Methyl-L-DOPA-d3 4-Glucuronide 
    [catalogue_number] => PA STI 061320
    [category_ids] => ,70,78,82,93,97,98,95,
    [chemical_name] => 
    [weight] => 390.36
    [form] => C16H18D3NO10
    [cas] => NA
    [pslug] => 3-o-methyl-l-dopa-d3-4-glucuronide-pasti061320
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PA STI 061320

3-O-Methyl-L-DOPA-d3 4-Glucuronide


  • Catalogue No.:PA STI 061320

  • CAS :

    NA

  • Molecular Formula : C16H18D3NO10

  • Molecular Weight : 390.36

stdClass Object
(
    [pname] => 3-O-Methyl-L-DOPA 4-Sulfate 
    [catalogue_number] => PA STI 061330
    [category_ids] => ,97,98,93,78,70,82,
    [chemical_name] => 
    [weight] => 291.28
    [form] => C10H13NO7S
    [cas] => 1391393-86-4
    [pslug] => 1391393-86-4-3-o-methyl-l-dopa-4-sulfate-pasti061330
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PA STI 061330

3-O-Methyl-L-DOPA 4-Sulfate


  • Catalogue No.:PA STI 061330

  • CAS :

    1391393-86-4

  • Molecular Formula : C10H13NO7S

  • Molecular Weight : 291.28

stdClass Object
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    [pname] => 3-O-Methyl-L-DOPA-d3 4-Sulfate 
    [catalogue_number] => PA STI 061340
    [category_ids] => ,97,98,93,78,70,82,
    [chemical_name] => 
    [weight] => 294.30
    [form] => C10H10D3NO7S
    [cas] => NA
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PA STI 061340

3-O-Methyl-L-DOPA-d3 4-Sulfate


  • Catalogue No.:PA STI 061340

  • CAS :

    NA

  • Molecular Formula : C10H10D3NO7S

  • Molecular Weight : 294.30

stdClass Object
(
    [pname] => DL-DOPA-2,5,6-d6
    [catalogue_number] => PA STI 036220
    [category_ids] => ,70,78,82,93,97,98,
    [chemical_name] => 
    [weight] => 203.22
    [form] => C9H5D6NO4
    [cas] => NA
    [pslug] => dl-dopa-2-5-6-d6-pasti036220
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PA STI 036220

DL-DOPA-2,5,6-d6


  • Catalogue No.:PA STI 036220

  • CAS :

    NA

  • Molecular Formula : C9H5D6NO4

  • Molecular Weight : 203.22

stdClass Object
(
    [pname] => 3-Methoxy-L-Tyrosine
    [catalogue_number] => PA 12 12580
    [category_ids] => ,78,70,82,
    [chemical_name] => 
    [weight] => 211.22
    [form] => C10H13NO4
    [cas] => 300-48-1
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PA 12 12580

3-Methoxy-L-Tyrosine


  • Catalogue No.:PA 12 12580

  • CAS :

    300-48-1

  • Molecular Formula : C10H13NO4

  • Molecular Weight : 211.22

stdClass Object
(
    [pname] => 3-Methoxy-L-tyrosine Monohydrate
    [catalogue_number] => PA 12 12590
    [category_ids] => ,93,78,70,82,
    [chemical_name] => 
    [weight] => 229.23
    [form] => C10H15NO5
    [cas] => 200630-46-2
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PA 12 12590

3-Methoxy-L-tyrosine Monohydrate


  • Catalogue No.:PA 12 12590

  • CAS :

    200630-46-2

  • Molecular Formula : C10H15NO5

  • Molecular Weight : 229.23

stdClass Object
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    [pname] => 5,6-Dihydroxyindole-2-carboxylic Acid
    [catalogue_number] => PA 12 12600
    [category_ids] => ,78,70,82,
    [chemical_name] => 
    [weight] => 193.16
    [form] => C9H7NO4
    [cas] => 4790-08-3
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PA 12 12600

5,6-Dihydroxyindole-2-carboxylic Acid


  • Catalogue No.:PA 12 12600

  • CAS :

    4790-08-3

  • Molecular Formula : C9H7NO4

  • Molecular Weight : 193.16

stdClass Object
(
    [pname] => N-[2-[4-(Acetyloxy)-3-methoxyphenyl]-1-cyano-1-methylethyl]acetamide
    [catalogue_number] => PA 12 12610
    [category_ids] => ,79,80,81,78,70,82,
    [chemical_name] => 
    [weight] => 290.31
    [form] => C15H18N2O4
    [cas] => 15073-74-2
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PA 12 12610

N-[2-[4-(Acetyloxy)-3-methoxyphenyl]-1-cyano-1-methylethyl]acetamide


  • Catalogue No.:PA 12 12610

  • CAS :

    15073-74-2

  • Molecular Formula : C15H18N2O4

  • Molecular Weight : 290.31

stdClass Object
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    [pname] => 3-Acetyl-N-benzyloxycarbonyl-L-tyrosine Methyl Ester
    [catalogue_number] => PA 12 12620
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    [chemical_name] => 
    [weight] => 371.38
    [form] => C20H21NO6
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PA 12 12620

3-Acetyl-N-benzyloxycarbonyl-L-tyrosine Methyl Ester


  • Catalogue No.:PA 12 12620

  • CAS :

    110774-03-3

  • Molecular Formula : C20H21NO6

  • Molecular Weight : 371.38

stdClass Object
(
    [pname] => 3-Acetyl-N-benzyloxycarbonyl-4-O-benzyl-L-tyrosine Methyl Ester
    [catalogue_number] => PA 12 12630
    [category_ids] => ,97,93,78,70,82,
    [chemical_name] => 
    [weight] => 461.51
    [form] => C27H27NO6
    [cas] => 105205-69-4
    [pslug] => 105205-69-4-3-acetyl-n-benzyloxycarbonyl-4-o-benzyl-l-tyrosine-methyl-ester-pa1212630
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PA 12 12630

3-Acetyl-N-benzyloxycarbonyl-4-O-benzyl-L-tyrosine Methyl Ester


  • Catalogue No.:PA 12 12630

  • CAS :

    105205-69-4

  • Molecular Formula : C27H27NO6

  • Molecular Weight : 461.51

stdClass Object
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    [pname] => (Acetyl-d3)glycine-2,2-d2
    [catalogue_number] => PA STI 088610
    [category_ids] => ,97,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 122.13
    [form] => C4H2D5NO3
    [cas] => 1219805-82-9
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PA STI 088610

(Acetyl-d3)glycine-2,2-d2


  • Catalogue No.:PA STI 088610

  • CAS :

    1219805-82-9

  • Molecular Formula : C4H2D5NO3

  • Molecular Weight : 122.13

stdClass Object
(
    [pname] => 4-O-Benzyl-N-[(benzyloxy)carbonyl]-L-dOPA methyl ester
    [catalogue_number] => PA 12 0121000
    [category_ids] => ,93,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 435.48
    [form] => C25H25NO6
    [cas] => 105229-41-2
    [pslug] => 105229-41-2-4-o-benzyl-n-benzyloxy-carbonyl-l-dopa-methyl-ester-pa120121000
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PA 12 0121000

4-O-Benzyl-N-[(benzyloxy)carbonyl]-L-dOPA methyl ester


  • Catalogue No.:PA 12 0121000

  • CAS :

    105229-41-2

  • Molecular Formula : C25H25NO6

  • Molecular Weight : 435.48

stdClass Object
(
    [pname] => Leucodopachrome
    [catalogue_number] => PA 12 0121001
    [category_ids] => ,78,70,82,
    [chemical_name] => 
    [weight] => 195.17
    [form] => C9H9NO4
    [cas] => 18766-67-1
    [pslug] => 18766-67-1-leucodopachrome-pa120121001
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PA 12 0121001

Leucodopachrome


  • Catalogue No.:PA 12 0121001

  • CAS :

    18766-67-1

  • Molecular Formula : C9H9NO4

  • Molecular Weight : 195.17

stdClass Object
(
    [pname] => 6-Hydroxy-DL-DOPA
    [catalogue_number] => PA 12 0121002
    [category_ids] => ,97,93,69,70,78,82,
    [chemical_name] => 
    [weight] => 213.19
    [form] => C9H11NO5
    [cas] => 21373-30-8
    [pslug] => 21373-30-8-6-hydroxy-dl-dopa-pa120121002
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PA 12 0121002

6-Hydroxy-DL-DOPA


  • Catalogue No.:PA 12 0121002

  • CAS :

    21373-30-8

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

stdClass Object
(
    [pname] => L-Dopa methyl ester Hydrochloride
    [catalogue_number] => PA 12 0121003
    [category_ids] => ,97,93,69,78,82,
    [chemical_name] => 
    [weight] => 247.68
    [form] => C10H14ClNO4
    [cas] => 1421-65-4
    [pslug] => 1421-65-4-l-dopa-methyl-ester-hydrochloride-pa120121003
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PA 12 0121003

L-Dopa methyl ester Hydrochloride


  • Catalogue No.:PA 12 0121003

  • CAS :

    1421-65-4

  • Molecular Formula : C10H14ClNO4

  • Molecular Weight : 247.68

stdClass Object
(
    [pname] => L-DOPA ethyl ester Hydrochloride
    [catalogue_number] => PA 12 0121004
    [category_ids] => ,97,93,69,78,82,
    [chemical_name] => 
    [weight] => 261.7
    [form] => C11H16ClNO4
    [cas] => 39740-30-2
    [pslug] => 39740-30-2-l-dopa-ethyl-ester-hydrochloride-pa120121004
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PA 12 0121004

L-DOPA ethyl ester Hydrochloride


  • Catalogue No.:PA 12 0121004

  • CAS :

    39740-30-2

  • Molecular Formula : C11H16ClNO4

  • Molecular Weight : 261.7

stdClass Object
(
    [pname] => (1S,3S)-6,7-Dihydroxy-1-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dicarboxylic Acid
    [catalogue_number] => PA 12 0121005
    [category_ids] => ,69,70,78,82,
    [chemical_name] => 
    [weight] => 267.24
    [form] => C12H13NO6
    [cas] => 2259692-12-9
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PA 12 0121005

(1S,3S)-6,7-Dihydroxy-1-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dicarboxylic Acid


  • Catalogue No.:PA 12 0121005

  • CAS :

    2259692-12-9

  • Molecular Formula : C12H13NO6

  • Molecular Weight : 267.24

stdClass Object
(
    [pname] => (1R,3S)-6,7-Dihydroxy-1-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dicarboxylic Acid
    [catalogue_number] => PA 12 0121006
    [category_ids] => ,69,70,78,82,
    [chemical_name] => 
    [weight] => 267.24
    [form] => C12H13NO6
    [cas] => 2259692-11-8
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PA 12 0121006

(1R,3S)-6,7-Dihydroxy-1-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dicarboxylic Acid


  • Catalogue No.:PA 12 0121006

  • CAS :

    2259692-11-8

  • Molecular Formula : C12H13NO6

  • Molecular Weight : 267.24