droxidopa and its Impurities

Droxidopa is used in the treatment of Parkinsonism. It is a precursor of noradrenaline. Reference standards of Droxidopa API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below

Displaying 50 results for droxidopa Impurities
PA 04 89000

Droxidopa

Droxidopa

  • Catalogue No.:PA 04 89000

  • CAS :

    23651-95-8

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

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PA 04 89510

3,4-Dihydroxyphenyl-glycolaldehyde

3,4-Dihydroxyphenyl-glycolaldehyde

  • Catalogue No.:PA 04 89510

  • CAS :

    13023-73-9

  • Molecular Formula : C8H8O4

  • Molecular Weight : 168.15

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PA 04 89520

3,4-Dihydroxyphenyl-acetaldehyde

3,4-Dihydroxyphenyl-acetaldehyde

  • Catalogue No.:PA 04 89520

  • CAS :

    5707-55-1

  • Molecular Formula : C8H8O3

  • Molecular Weight : 152.15

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PA 04 89540

(2S)-2-Amino-1,1-diphenylpropan-1-ol

(2S)-2-Amino-1,1-diphenylpropan-1-ol

  • Catalogue No.:PA 04 89540

  • CAS :

    78603-91-5

  • Molecular Formula : C15H17NO

  • Molecular Weight : 227.3

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PA 04 89550

(2S,3R)-2-(((Benzyloxy)carbonyl)amino)-3-(3,4-bis(benzyloxy)phenyl)-3-hydroxypropanoic Acid

(2S,3R)-2-(((Benzyloxy)carbonyl)amino)-3-(3,4-bis(benzyloxy)phenyl)-3-hydroxypropanoic Acid

  • Catalogue No.:PA 04 89550

  • CAS :

    55382-14-4

  • Molecular Formula : C31H29NO7

  • Molecular Weight : 527.56

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PA 04 89560

Erythro-β,3-Dihydroxy-L-tyrosine

Erythro-β,3-Dihydroxy-L-tyrosine

  • Catalogue No.:PA 04 89560

  • CAS :

    34047-62-6

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

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PA 04 89570

D-threo-3,4-Dihydroxyphenylserine

D-threo-3,4-Dihydroxyphenylserine

  • Catalogue No.:PA 04 89570

  • CAS :

    51829-99-3

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

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PA 04 89580

Erythro-β,3-Dihydroxy-D-tyrosine

Erythro-β,3-Dihydroxy-D-tyrosine

  • Catalogue No.:PA 04 89580

  • CAS :

    51829-98-2

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

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PA 04 89590

5,6,11,12-Tetrahydro-5,11-epiminodibenzo[a,e][8]annulene-2,3,8,9-tetraol

5,6,11,12-Tetrahydro-5,11-epiminodibenzo[a,e][8]annulene-2,3,8,9-tetraol

  • Catalogue No.:PA 04 89590

  • CAS :

    90044-46-5

  • Molecular Formula : C16H15NO4

  • Molecular Weight : 285.29

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PA 04 89600

(2S,3R)-2-Amino-3-(benzo[d][1,3]dioxol-5-yl)-3-hydroxypropanoic Acid

(2S,3R)-2-Amino-3-(benzo[d][1,3]dioxol-5-yl)-3-hydroxypropanoic Acid

  • Catalogue No.:PA 04 89600

  • CAS :

    88375-62-6

  • Molecular Formula : C10H11NO5

  • Molecular Weight : 225.2

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PA 04 89610

3,4-Dihydroxybenzaldehyde

3,4-Dihydroxybenzaldehyde

  • Catalogue No.:PA 04 89610

  • CAS :

    139-85-5

  • Molecular Formula : C7H6O3

  • Molecular Weight : 138.12

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PA 04 89620

N-Hydroxyphthalimide

N-Hydroxyphthalimide

  • Catalogue No.:PA 04 89620

  • CAS :

    524-38-9

  • Molecular Formula : C8H5NO3

  • Molecular Weight : 163.13

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PA STI 061400

1-(3,4-Methylenedioxyphenyl)-4,4-dimethyl-d6-pent-1-en-3-one-d3

1-(3,4-Methylenedioxyphenyl)-4,4-dimethyl-d6-pent-1-en-3-one-d3

  • Catalogue No.:PA STI 061400

  • CAS :

    1262795-35-6

  • Molecular Formula : C14H7D9O3

  • Molecular Weight : 241.33

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PA STI 061410

DL-threo-β-(3,4-Methylenedioxyphenyl)serine-13C2,15N Acetate Salt

DL-threo-β-(3,4-Methylenedioxyphenyl)serine-13C2,15N Acetate Salt

  • Catalogue No.:PA STI 061410

  • CAS :

    1329610-57-2

  • Molecular Formula : C1013C2H1515NO7

  • Molecular Weight : 288.23

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PA STI 010650

1,3-Benzodioxole-N-phthalimido DL-threo-Droxidopa-13C2,15N

1,3-Benzodioxole-N-phthalimido DL-threo-Droxidopa-13C2,15N

  • Catalogue No.:PA STI 010650

  • CAS :

    1330188-86-7

  • Molecular Formula : C1613C2H1315NO7

  • Molecular Weight : 358.28

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PA STI 036540

D,L-threo-Droxidopa-13C2,15N Hydrochloride

D,L-threo-Droxidopa-13C2,15N Hydrochloride

  • Catalogue No.:PA STI 036540

  • CAS :

    1329556-63-9

  • Molecular Formula : C713C2H12Cl15NO5

  • Molecular Weight : 252.63

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PA STI 036541

Droxidopa-13C6

Droxidopa-13C6

  • Catalogue No.:PA STI 036541

  • CAS :

    NA

  • Molecular Formula : C313C6H11NO5

  • Molecular Weight : 219.14

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PA STI 036550

L-threo-Droxidopa-13C2,15N

L-threo-Droxidopa-13C2,15N

  • Catalogue No.:PA STI 036550

  • CAS :

    1276295-04-5

  • Molecular Formula : C713C2H1115NO5

  • Molecular Weight : 216.17

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PA STI 036551

Droxidopa Hydrochloride-13C7

Droxidopa Hydrochloride-13C7

  • Catalogue No.:PA STI 036551

  • CAS :

    1261393-39-8

  • Molecular Formula : C213C7H12ClNO5

  • Molecular Weight : 256.60

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PA 04 89630

Erythro-β,3-dihydroxy-DL-tyrosine

Erythro-β,3-dihydroxy-DL-tyrosine

  • Catalogue No.:PA 04 89630

  • CAS :

    16322-99-9

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

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PA 04 89640

(2S,3R)-2-Amino-3-(3-(benzoyloxy)-4-hydroxyphenyl)-3-hydroxypropanoic Acid

(2S,3R)-2-Amino-3-(3-(benzoyloxy)-4-hydroxyphenyl)-3-hydroxypropanoic Acid

  • Catalogue No.:PA 04 89640

  • CAS :

    NA

  • Molecular Formula : C16H15NO6

  • Molecular Weight : 317.3

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PA 04 89650

3,4-Dibenzyloxybenzaldehyde

3,4-Dibenzyloxybenzaldehyde

  • Catalogue No.:PA 04 89650

  • CAS :

    5447-02-9

  • Molecular Formula : C21H18O3

  • Molecular Weight : 318.37

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PA 04 89660

4-((4S,5R)-4-(tert-Butoxycarbonyl)-4,5-dihydrooxazol-5-yl)-1,2-phenylene Dibenzoate

4-((4S,5R)-4-(tert-Butoxycarbonyl)-4,5-dihydrooxazol-5-yl)-1,2-phenylene Dibenzoate

  • Catalogue No.:PA 04 89660

  • CAS :

    NA

  • Molecular Formula : C28H25NO7

  • Molecular Weight : 487.51

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PA 04 89670

2-Amino-3-(3,4-bis(benzoyloxy)phenyl)-3-hydroxypropanoic Acid

2-Amino-3-(3,4-bis(benzoyloxy)phenyl)-3-hydroxypropanoic Acid

  • Catalogue No.:PA 04 89670

  • CAS :

    1910707-56-0

  • Molecular Formula : C23H19NO7

  • Molecular Weight : 421.41

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PA 04 89680

(S)-1-Hydroxy-1,1-diphenylpropan-2-aminium (2S,3R)-2-(((benzyloxy)carbonyl)amino)-3-(3,4-bis(benzyloxy)phenyl)-3-hydroxypropanoate

(S)-1-Hydroxy-1,1-diphenylpropan-2-aminium (2S,3R)-2-(((benzyloxy)carbonyl)amino)-3-(3,4-bis(benzyloxy)phenyl)-3-hydroxypropanoate

  • Catalogue No.:PA 04 89680

  • CAS :

    NA

  • Molecular Formula : C46H46N2O8

  • Molecular Weight : 754.88

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PA 04 89690

Droxidopa Benzoate

Droxidopa Benzoate

  • Catalogue No.:PA 04 89690

  • CAS :

    NA

  • Molecular Formula : C31H27NO8

  • Molecular Weight : 541.56

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PA 04 89700

(2S,3R)-2-Amino-3-(3-(benzyloxy)-4-hydroxyphenyl)-3-hydroxypropanoic Acid compound with (2S,3R)-2-amino-3-(4-(benzyloxy)-3-hydroxyphenyl)-3-hydroxypropanoic Acid (1:1)

(2S,3R)-2-Amino-3-(3-(benzyloxy)-4-hydroxyphenyl)-3-hydroxypropanoic Acid compound with (2S,3R)-2-amino-3-(4-(benzyloxy)-3-hydroxyphenyl)-3-hydroxypropanoic Acid (1:1)

  • Catalogue No.:PA 04 89700

  • CAS :

    NA

  • Molecular Formula : C16H17NO5

  • Molecular Weight : 303.31

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PA 04 89710

3-(3,4-Dibenzyloxyphenyl)-serine

3-(3,4-Dibenzyloxyphenyl)-serine

  • Catalogue No.:PA 04 89710

  • CAS :

    55449-18-8

  • Molecular Formula : C23H23NO5

  • Molecular Weight : 393.44

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PA 04 89720

Tert-butyl (4S,5R)-5-(3,4-bis(benzyloxy)phenyl)-4,5-dihydrooxazole-4-carboxylate

Tert-butyl (4S,5R)-5-(3,4-bis(benzyloxy)phenyl)-4,5-dihydrooxazole-4-carboxylate

  • Catalogue No.:PA 04 89720

  • CAS :

    2097541-16-5

  • Molecular Formula : C28H29NO5

  • Molecular Weight : 459.54

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PA 04 89730

(2R,3S)-2-Amino-3-(3-(benzoyloxy)-2-hydroxyphenyl)-3-hydroxypropanoic Acid

(2R,3S)-2-Amino-3-(3-(benzoyloxy)-2-hydroxyphenyl)-3-hydroxypropanoic Acid

  • Catalogue No.:PA 04 89730

  • CAS :

    NA

  • Molecular Formula : C16H15NO6

  • Molecular Weight : 317.3

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PA 04 89740

1H-Indole-3,5,6(2H)-trione

1H-Indole-3,5,6(2H)-trione

  • Catalogue No.:PA 04 89740

  • CAS :

    490-90-4

  • Molecular Formula : C8H5NO3

  • Molecular Weight : 163.13

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PA 04 0891000

(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-2-(1,3-dioxoisoindolin-2-yl)acrylic acid

(Z)-3-(Benzo[d][1,3]dioxol-5-yl)-2-(1,3-dioxoisoindolin-2-yl)acrylic acid

  • Catalogue No.:PA 04 0891000

  • CAS :

    NA

  • Molecular Formula : C18H11NO6

  • Molecular Weight : 337.29

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PA 04 0891001

(Z)-2-(2-(Benzo[d][1,3]dioxol-5-yl)vinyl)isoindoline-1,3-dione

(Z)-2-(2-(Benzo[d][1,3]dioxol-5-yl)vinyl)isoindoline-1,3-dione

  • Catalogue No.:PA 04 0891001

  • CAS :

    NA

  • Molecular Formula : C17H11NO4

  • Molecular Weight : 293.28

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PA 04 0891002

(Z)-3-(3,4-Dihydroxyphenyl)-2-(1,3-dioxoisoindolin-2-yl)acrylic acid

(Z)-3-(3,4-Dihydroxyphenyl)-2-(1,3-dioxoisoindolin-2-yl)acrylic acid

  • Catalogue No.:PA 04 0891002

  • CAS :

    NA

  • Molecular Formula : C17H11NO6

  • Molecular Weight : 325.28

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PA 04 0891003

(Z)-2-(3,4-Dihydroxystyryl)isoindoline-1,3-dione

(Z)-2-(3,4-Dihydroxystyryl)isoindoline-1,3-dione

  • Catalogue No.:PA 04 0891003

  • CAS :

    NA

  • Molecular Formula : C16H11NO4

  • Molecular Weight : 281.27

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PA 04 0891004

(2S,3R)-3-(Benzo[d][1,3]dioxol-5-yl)-2-(1,3-dioxoisoindolin-2-yl)-3-hydroxypropanoic (2S,3S)-4-(3,4-dihydroxyphenyl)-2-(1,3-dioxoisoindolin-2-yl)-3-hydroxybutanoic Anhydride

(2S,3R)-3-(Benzo[d][1,3]dioxol-5-yl)-2-(1,3-dioxoisoindolin-2-yl)-3-hydroxypropanoic (2S,3S)-4-(3,4-dihydroxyphenyl)-2-(1,3-dioxoisoindolin-2-yl)-3-hydroxybutanoic Anhydride

  • Catalogue No.:PA 04 0891004

  • CAS :

    NA

  • Molecular Formula : C36H26N2O13

  • Molecular Weight : 694.61

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PA 04 0891005

(2S,3R)-2-Amino-3-(benzo[d][1,3]dioxol-5-yl)-3-hydroxypropanoic (2S,3S)-2-amino-4-(3,4-dihydroxyphenyl)-3-hydroxybutanoic Anhydride

(2S,3R)-2-Amino-3-(benzo[d][1,3]dioxol-5-yl)-3-hydroxypropanoic (2S,3S)-2-amino-4-(3,4-dihydroxyphenyl)-3-hydroxybutanoic Anhydride

  • Catalogue No.:PA 04 0891005

  • CAS :

    NA

  • Molecular Formula : C20H22N2O9

  • Molecular Weight : 434.41

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PA 04 0891006

2,3,8,9-Tetrahydroxy-11,12-dihydro-5,11-epiminodibenzo[a,e][8]annulene-5(6H)-carboxylic Acid

2,3,8,9-Tetrahydroxy-11,12-dihydro-5,11-epiminodibenzo[a,e][8]annulene-5(6H)-carboxylic Acid

  • Catalogue No.:PA 04 0891006

  • CAS :

    NA

  • Molecular Formula : C17H15NO6

  • Molecular Weight : 329.31

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PA 04 0891007

L-Threo-(n-phthaloyl-3-(3,4-dihydroxyphenyl)serine)

L-Threo-(n-phthaloyl-3-(3,4-dihydroxyphenyl)serine)

  • Catalogue No.:PA 04 0891007

  • CAS :

    96561-53-4

  • Molecular Formula : C17H13NO7

  • Molecular Weight : 343.29

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PA 04 0891009

(2S,3R)-2-Amino-3-(3,4-bis(benzyloxy)phenyl)-3-hydroxypropanoic acid

(2S,3R)-2-Amino-3-(3,4-bis(benzyloxy)phenyl)-3-hydroxypropanoic acid

  • Catalogue No.:PA 04 0891009

  • CAS :

    106887-48-3

  • Molecular Formula : C23H23NO5

  • Molecular Weight : 393.44

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PA 04 0891008

DL-threo-β-(3,4-Methylenedioxyphenyl)serine Acetate Salt

DL-threo-β-(3,4-Methylenedioxyphenyl)serine acetate salt

  • Catalogue No.:PA 04 0891008

  • CAS :

    109910-66-9

  • Molecular Formula : C12H15NO7

  • Molecular Weight : 285.25

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PA 04 0891010

Droxidopa Amine

Droxidopa Amine

  • Catalogue No.:PA 04 0891010

  • CAS :

    55637-52-0

  • Molecular Formula : C23H23NO5

  • Molecular Weight : 393.44

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PA 04 0891011

2-(3,4-Dimethoxyphenyl)acetaldehyde

2-(3,4-Dimethoxyphenyl)acetaldehyde

  • Catalogue No.:PA 04 0891011

  • CAS :

    5703-21-9

  • Molecular Formula : C10H12O3

  • Molecular Weight : 180.2

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PA 04 0891012

(2S)-2-amino-3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

(2S)-2-amino-3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoic acid

  • Catalogue No.:PA 04 0891012

  • CAS :

    39846-91-8

  • Molecular Formula : C10H13NO5

  • Molecular Weight : 227.22

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PA 04 0891013

2-amino-3-(benzo[d][1,3]dioxol-5-yl)-3-hydroxypropanoic acid

2-amino-3-(benzo[d][1,3]dioxol-5-yl)-3-hydroxypropanoic acid

  • Catalogue No.:PA 04 0891013

  • CAS :

    56672-56-1

  • Molecular Formula : C10H11NO5

  • Molecular Weight : 225.2

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PA 04 0891014

4-(2-amino-1-hydroxyethyl)benzene-1,2-diol hydrochloride

4-(2-amino-1-hydroxyethyl)benzene-1,2-diol hydrochloride

  • Catalogue No.:PA 04 0891014

  • CAS :

    1432483-91-4

  • Molecular Formula : C8H12ClNO3

  • Molecular Weight : 205.64

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PA STI 089557

3,4-Dihydroxybenzaldehyde-2,5,6-d3

3,4-Dihydroxybenzaldehyde-2,5,6-d3

  • Catalogue No.:PA STI 089557

  • CAS :

    180028-20-0

  • Molecular Formula : C7H3D3O3

  • Molecular Weight : 141.14

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PA 04 0891015

Droxidopa Racemic

Droxidopa Racemic

  • Catalogue No.:PA 04 0891015

  • CAS :

    492-46-6

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

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PA 04 0891016

(R)-N-(2-Benzoylphenyl)-1-nitrosopyrrolidine-2-carboxamide

(R)-N-(2-Benzoylphenyl)-1-nitrosopyrrolidine-2-carboxamide

  • Catalogue No.:PA 04 0891016

  • CAS :

    NA

  • Molecular Formula : C18H17N3O3

  • Molecular Weight : 323.35

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PA 04 0891017

4'-Nitro-[1,1'-biphenyl]-4-carboxylic Acid

4'-Nitro-[1,1'-biphenyl]-4-carboxylic Acid

  • Catalogue No.:PA 04 0891017

  • CAS :

    92-89-7

  • Molecular Formula : C13H9NO4

  • Molecular Weight : 243.22

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