levodopa and its Impurities

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.

Displaying 49 results for levodopa Impurities
PA 12 12000

Levodopa

Levodopa

  • Catalogue No.:PA 12 12000

  • CAS :

    59-92-7

  • Molecular Formula : C9H11NO4

  • Molecular Weight : 197.19

Enquire
Details
PA 12 12020

Levodopa - Impurity B

Tyrosine

  • Catalogue No.:PA 12 12020

  • CAS :

    60-18-4

  • Molecular Formula : C9H11NO3

  • Molecular Weight : 181.19

Enquire
Details
PA 12 12030

Levodopa - Impurity C

3-methoxy-DL-tyrosine

  • Catalogue No.:PA 12 12030

  • CAS :

    7636-26-2

  • Molecular Formula : C10H13NO4

  • Molecular Weight : 211.21

Enquire
Details
PA 12 12040

Levodopa - Impurity D

D-Dopa

  • Catalogue No.:PA 12 12040

  • CAS :

    5796-17-8

  • Molecular Formula : C9H11NO4

  • Molecular Weight : 197.19

Enquire
Details
PA 12 12510

4-Hydroxy-3-methoxymandelic Acid

4-Hydroxy-3-methoxymandelic Acid

  • Catalogue No.:PA 12 12510

  • CAS :

    55-10-7

  • Molecular Formula : C9H10O5

  • Molecular Weight : 198.17

Enquire
Details
PA 12 12530

3-Acetyl-L-tyrosine Hydrochloride

3-Acetyl-L-tyrosine Hydrochloride

  • Catalogue No.:PA 12 12530

  • CAS :

    32404-28-7

  • Molecular Formula : C11H14ClNO4

  • Molecular Weight : 259.69

Enquire
Details
PA 12 12540

3-Acetyl-L-tyrosine Methyl Ester Hydrochloride

3-Acetyl-L-tyrosine Methyl Ester Hydrochloride

  • Catalogue No.:PA 12 12540

  • CAS :

    57085-32-2

  • Molecular Formula :   C12H16ClNO4

  • Molecular Weight : 273.71

Enquire
Details
PA 12 12550

3-(3,4-Dimethoxyphenyl)-L-alanine

3-(3,4-Dimethoxyphenyl)-L-alanine

  • Catalogue No.:PA 12 12550

  • CAS :

    32161-30-1

  • Molecular Formula : C11H15NO4

  • Molecular Weight : 225.24

Enquire
Details
PA 12 12560

3-Acetyl-L-tyrosine

3-Acetyl-L-tyrosine

  • Catalogue No.:PA 12 12560

  • CAS :

    32483-30-0

  • Molecular Formula : C11H13NO4

  • Molecular Weight : 223.23

Enquire
Details
PA 12 12570

Levodopa - Impurity A

2-Hydroxy Levodopa

  • Catalogue No.:PA 12 12570

  • CAS :

    27244-64-0

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

Enquire
Details
PA STI 061290

rac 3-O-Methyl DOPA-d3

rac 3-O-Methyl DOPA-d3

  • Catalogue No.:PA STI 061290

  • CAS :

    1219173-95-1

  • Molecular Formula : C10H10D3NO4

  • Molecular Weight : 214.23

Enquire
Details
PA STI 061300

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

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

  • Catalogue No.:PA STI 061300

  • CAS :

    NA

  • Molecular Formula : C10H12D3NO5

  • Molecular Weight : 232.25

Enquire
Details
PA STI 061310

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

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

  • Catalogue No.:PA STI 061310

  • CAS :

    1795785-77-1

  • Molecular Formula : C11H12D3NO4

  • Molecular Weight : 228.26

Enquire
Details
PA STI 061320

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

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

  • Catalogue No.:PA STI 061320

  • CAS :

    NA

  • Molecular Formula : C16H18D3NO10

  • Molecular Weight : 390.36

Enquire
Details
PA STI 061330

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

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

  • Catalogue No.:PA STI 061330

  • CAS :

    1391393-86-4

  • Molecular Formula : C10H13NO7S

  • Molecular Weight : 291.28

Enquire
Details
PA STI 061340

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

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

  • Catalogue No.:PA STI 061340

  • CAS :

    NA

  • Molecular Formula : C10H10D3NO7S

  • Molecular Weight : 294.30

Enquire
Details
PA STI 061350

3-(Methoxy-d3)-L-tyrosine Hydrochloride

3-(Methoxy-d3)-L-tyrosine Hydrochloride

  • Catalogue No.:PA STI 061350

  • CAS :

    NA

  • Molecular Formula : C10H11D3ClNO4

  • Molecular Weight : 250.69

Enquire
Details
PA STI 032860

α,4-Dihydroxy-3-methoxy-α-methyl-benzeneethanesulfonic Acid Potassium Salt-d5

α,4-Dihydroxy-3-methoxy-α-methyl-benzeneethanesulfonic Acid Potassium Salt-d5

  • Catalogue No.:PA STI 032860

  • CAS :

    1794789-29-9

  • Molecular Formula : C10H8D5KO6S

  • Molecular Weight : 305.4

Enquire
Details
PA STI 036220

DL-DOPA-2,5,6-d6

DL-DOPA-2,5,6-d6

  • Catalogue No.:PA STI 036220

  • CAS :

    NA

  • Molecular Formula : C9H5D6NO4

  • Molecular Weight : 203.22

Enquire
Details
PA STI 056471

Levodopa-d3

Levodopa-d3

  • Catalogue No.:PA STI 056471

  • CAS :

    53587-29-4

  • Molecular Formula : C9H8D3NO4

  • Molecular Weight : 200.21

Enquire
Details
PA 12 12580

3-Methoxy-L-Tyrosine

3-Methoxy-L-Tyrosine

  • Catalogue No.:PA 12 12580

  • CAS :

    300-48-1

  • Molecular Formula : C10H13NO4

  • Molecular Weight : 211.22

Enquire
Details
PA 12 12590

3-Methoxy-L-tyrosine Monohydrate

3-Methoxy-L-tyrosine Monohydrate

  • Catalogue No.:PA 12 12590

  • CAS :

    200630-46-2

  • Molecular Formula : C10H15NO5

  • Molecular Weight : 229.23

Enquire
Details
PA 12 12600

5,6-Dihydroxyindole-2-carboxylic Acid

5,6-Dihydroxyindole-2-carboxylic Acid

  • Catalogue No.:PA 12 12600

  • CAS :

    4790-08-3

  • Molecular Formula : C9H7NO4

  • Molecular Weight : 193.16

Enquire
Details
PA 12 12610

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

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

Enquire
Details
PA 12 12620

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

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

  • Catalogue No.:PA 12 12620

  • CAS :

    110774-03-3

  • Molecular Formula : C20H21NO6

  • Molecular Weight : 371.38

Enquire
Details
PA 12 12630

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

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

Enquire
Details
PA ICRS0334

Levodopa (ICRS0334)

  • Catalogue No.:PA ICRS0334

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

Enquire
Details
PA IPIPRS 131 12

Levodopa (IPRS/131/12)-from IPC

  • Catalogue No.:PA IPIPRS 131 12

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

Enquire
Details
PA EPL0400000

Levodopa (L0400000)

Levodopa (L0400000)

  • Catalogue No.:PA EPL0400000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PA USP1361009

Levodopa (1361009)

Levodopa (1361009)

  • Catalogue No.:PA USP1361009

  • CAS :

    59-92-7

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PA USP1361010

Levodopa Related Compound A ((3-(2,4,5-Trihydroxyphenyl)-L-alanine) or (3-(3,4,6-Trihydroxyphenyl)a (1361010)

Levodopa Related Compound A ((3-(2,4,5-Trihydroxyphenyl)-L-alanine) or (3-(3,4,6-Trihydroxyphenyl)a (1361010)

  • Catalogue No.:PA USP1361010

  • CAS :

    27244-64-0

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PA USP1420006

Levodopa Related Compound B (3-methoxytyrosine) (1420006)

Levodopa Related Compound B (3-methoxytyrosine) (1420006)

  • Catalogue No.:PA USP1420006

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PA BP213RB

levodopa (213RB)

levodopa (213RB)

  • Catalogue No.:PA BP213RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
PA STI 088610

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

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

  • Catalogue No.:PA STI 088610

  • CAS :

    1219805-82-9

  • Molecular Formula : C4H2D5NO3

  • Molecular Weight : 122.13

Enquire
Details
PA 12 0121000

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

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

Enquire
Details
PA 12 0121001

Leucodopachrome

Leucodopachrome

  • Catalogue No.:PA 12 0121001

  • CAS :

    18766-67-1

  • Molecular Formula : C9H9NO4

  • Molecular Weight : 195.17

Enquire
Details
PA 12 0121003

L-Dopa methyl ester Hydrochloride

L-Dopa methyl ester Hydrochloride

  • Catalogue No.:PA 12 0121003

  • CAS :

    1421-65-4

  • Molecular Formula : C10H14ClNO4

  • Molecular Weight : 247.68

Enquire
Details
PA 12 0121004

L-DOPA ethyl ester Hydrochloride

L-DOPA ethyl ester Hydrochloride

  • Catalogue No.:PA 12 0121004

  • CAS :

    39740-30-2

  • Molecular Formula : C11H16ClNO4

  • Molecular Weight : 261.7

Enquire
Details
PA 12 0121005

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

(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

Enquire
Details
PA 12 0121006

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

(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

Enquire
Details
PAI 12 012001

Boc-3,4-dihydroxy-L-phenylalanine

Boc-3,4-dihydroxy-L-phenylalanine

  • Catalogue No.:PAI 12 012001

  • CAS :

    30033-24-0

  • Molecular Formula : C14H19NO6

  • Molecular Weight : 297.31

Enquire
Details
PAI 12 012002

tert-Butyl (6,7-dihydroxy-2-oxochroman-3-yl)carbamate

tert-Butyl (6,7-dihydroxy-2-oxochroman-3-yl)carbamate

  • Catalogue No.:PAI 12 012002

  • CAS :

    2384684-16-4

  • Molecular Formula : C14H17NO6

  • Molecular Weight : 295.29

Enquire
Details
PAI 12 012003

3-Amino-6,7-dihydroxychroman-2-one Hydrochloride

3-Amino-6,7-dihydroxychroman-2-one Hydrochloride

  • Catalogue No.:PAI 12 012003

  • CAS :

    1822478-09-0

  • Molecular Formula : C9H10ClNO4

  • Molecular Weight : 231.63

Enquire
Details
PAI 12 012004

(S)-2-((tert-Butoxycarbonyl)amino)-3-(2,4,5-trihydroxyphenyl)propanoic Acid

(S)-2-((tert-Butoxycarbonyl)amino)-3-(2,4,5-trihydroxyphenyl)propanoic Acid

  • Catalogue No.:PAI 12 012004

  • CAS :

    NA

  • Molecular Formula : C14H19NO7

  • Molecular Weight : 313.31

Enquire
Details
PAI 12 012005

(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(3,4-dihydroxyphenyl)propanoic Acid

(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(3,4-dihydroxyphenyl)propanoic Acid

  • Catalogue No.:PAI 12 012005

  • CAS :

    137018-93-0

  • Molecular Formula : C24H21NO6

  • Molecular Weight : 419.43

Enquire
Details
PAI 12 012006

(9H-Fluoren-9-yl)methyl (6,7-dihydroxy-2-oxochroman-3-yl)carbamate

(9H-Fluoren-9-yl)methyl (6,7-dihydroxy-2-oxochroman-3-yl)carbamate

  • Catalogue No.:PAI 12 012006

  • CAS :

    NA

  • Molecular Formula : C24H19NO6

  • Molecular Weight : 417.42

Enquire
Details
PAI 12 012007

(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2,4,5-trihydroxyphenyl)propanoic Acid

(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2,4,5-trihydroxyphenyl)propanoic Acid

  • Catalogue No.:PAI 12 012007

  • CAS :

    NA

  • Molecular Formula : C24H21NO7

  • Molecular Weight : 435.43

Enquire
Details
PA 12 0121007

L-Dopaquinone

L-Dopaquinone

  • Catalogue No.:PA 12 0121007

  • CAS :

    25520-73-4

  • Molecular Formula : C9H9NO4

  • Molecular Weight : 195.17

Enquire
Details
PA IPRS 06 19

Levodopa (IPRS/06/19)

Levodopa (IPRS/06/19)

  • Catalogue No.:PA IPRS 06 19

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Enquire
Details
Periodic Table- Pharmaffiliates

Calculators
Periodic Table- Pharmaffiliates

Contact us

Ask A Scientist-Pharmaffiliates

Ask a Scientist
General Help

General Help
CPHI INDIA- 28, 30 November