Droxidopa-impurities | Pharmaffiliates

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 46 results for droxidopa Impurities
PA 04 89000

Droxidopa - API

Droxidopa


  • Catalogue No.:PA 04 89000

  • CAS :

    23651-95-8

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

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

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

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

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

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

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

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

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

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

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

PA 04 89620

N-Hydroxyphthalimide

N-Hydroxyphthalimide


  • Catalogue No.:PA 04 89620

  • CAS :

    524-38-9

  • Molecular Formula : C8H5NO3

  • Molecular Weight : 163.13

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

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

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

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

PA STI 036541

Droxidopa-13C6

Droxidopa-13C6


  • Catalogue No.:PA STI 036541

  • CAS :

    NA

  • Molecular Formula : C313C6H11NO5

  • Molecular Weight : 219.14

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

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

PA 04 89630

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

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


  • Catalogue No.:PA 04 89630

  • CAS :

    16322-99-9

  • Molecular Formula : C9H11NO5

  • Molecular Weight : 213.19

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

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

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

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 :

    NA

  • Molecular Formula : C23H19NO7

  • Molecular Weight : 421.41

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

PA 04 89690

Droxidopa Benzoate

Droxidopa Benzoate


  • Catalogue No.:PA 04 89690

  • CAS :

    NA

  • Molecular Formula : C31H27NO8

  • Molecular Weight : 541.56

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

PA 04 0891010

Droxidopa Amine

Droxidopa Amine


  • Catalogue No.:PA 04 0891010

  • CAS :

    55637-52-0

  • Molecular Formula : C23H23NO5

  • Molecular Weight : 393.44

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

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

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

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