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DOPA

D-322

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Catalogue Number:	D-322
Compound Name:	Levodopa EP Impurity C (S-Isomer) (L-3-O-Methyldopa)
Synonyms:	(S)-2-amino-3-(4-hydroxy-3-methoxyphenyl)propanoic acid
CAS#:	300-48-1
Alternate CAS#:
Molecular Formula:	C₁₀H₁₃NO₄
Molecular Weight:	211.22

Related Product

D-321

Levodopa EP Impurity D

Levodopa EP Impurity D

CAS No. 5796-17-8

C₉H₁₁NO₄

M.W. 197.19

D-323

Levodopa EP Impurity D

Levodopa-d3

CAS No. 53587-29-4

C₉H₈D₃NO₄

M.W. 200.21

D-326

Levodopa EP Impurity D

Levodopa sulfate

C₉H₁₁NO₇S

M.W. 277.25

D-327

Levodopa EP Impurity D

3-O-methyl dopa glucuronide

C₁₆H₂₁NO₁₀

M.W. 387.35

D-329

Levodopa EP Impurity D

Levodopa EP Impurity C-d3 (S-isomer) (L-3-O-Methyldopa-d3)

CAS No. 586954-09-8

C₁₀H₁₀D₃NO₄

M.W. 214.24

D-3210

Levodopa EP Impurity D

3-O-methyl dopa sulfate

C₉H₁₃NO₅S

M.W. 247.27

D-3211

Levodopa EP Impurity D

Dopamine HCl

CAS No. 62-31-7

C₈H₁₁NO₂. HCl

M.W. 153.18 36.46

D-3212

Levodopa EP Impurity D

4-O-Methyl Levodopa

CAS No. 35296-56-1

C₁₀H₁₃NO₄

M.W. 211.22

D-3213

Levodopa EP Impurity D

4-O-Methyldopa-d3

C10H10NO4D3

M.W. 214.24

D-3214

Levodopa EP Impurity D

Levodopa

CAS No. 59-92-7

C₉H₁₁NO₄

M.W. 197.19

D-3215

Levodopa EP Impurity D

6-Hydroxy Dopamine-d4

CAS No. N/A

C8H7NO3D4

M.W. 173.21

D-3216

Levodopa EP Impurity D

Rac-Levodopa EP Impurity A HCl (Rac-Levodopa USP Related Compound A HCl, 6-Hydroxy DOPA HCl)

CAS No. 68463-64-9

C₉H₁₁NO₅. HCl

M.W. 213.19 36.46

D-3217

Levodopa EP Impurity D

Levodopa Related Compound 1

CAS No. 32161-30-1

C₁₁H₁₅NO₄

M.W. 225.24

D-32113

Levodopa EP Impurity D

Dopamine EP Impurity A HCl (Dopamine USP Related Compound A HCl, 4-Methoxy Tyramine HCl)

CAS No. 645-33-0

C₉H₁₃NO₂. HCl

M.W. 167.21 36.46

D-3219

Levodopa EP Impurity D

Levodopa EP Impurity C (Levodopa USP Related Compound B, DL-3-O-Methyldopa)

CAS No. 7636-26-2

C₁₀H₁₃NO₄

M.W. 211.22

D-3221

Levodopa EP Impurity D

Methyldopa-d3 HCl (Carbidopa EP Impurity A-d3 HCl)

C₁₀H₁₀D₃NO₄. HCl

M.W. 214.24 36.46

D-3222

Levodopa EP Impurity D

Dopamine-d4 HCl

CAS No. 203633-19-6

C₈H₇NO₂D₄. HCl

M.W. 157.21 36.46

D-32101

Levodopa EP Impurity D

Methyldopa (Carbidopa EP Impurity A)

CAS No. 555-30-6

C₁₀H₁₃NO₄

M.W. 211.22

D-3223

Levodopa EP Impurity D

Methyldopa Impurity A

CAS No. 6739-31-7

C₁₁H₁₅NO₄

M.W. 225.25

D-3224

Levodopa EP Impurity D

Dopamine EP Impurity C (Dopamine USP Related Compound C)

CAS No. 120-20-7

C₁₀H₁₅NO₂

M.W. 181.24

D-3225

Levodopa EP Impurity D

Methyldopa EP Impurity B HCl

CAS No. 35026-10-9

C₁₁H₁₅NO₃. HCl

M.W. 209.25 36.46

D-3226

Levodopa EP Impurity D

DL-Methyldopa-d3

C₁₀H₁₀D₃NO₄

M.W. 214.24

D-3227

Levodopa EP Impurity D

Levodopa Impurity 4

CAS No. 4790-08-3

C₉H₇NO₄

M.W. 193.16

D-3228

Levodopa EP Impurity D

Methyldopa EP Impurity C

CAS No. 39948-18-0

C₁₂H₁₇NO₄

M.W. 239.27

D-3229

Levodopa EP Impurity D

Levodopa EP Impurity A (Levodopa USP Related Compound A, 6-Hydroxy L-DOPA)

CAS No. 27244-64-0

C₉H₁₁NO₅

M.W. 213.19

D-3230

Levodopa EP Impurity D

Levodopa Impurity 1 HCl

CAS No. 32404-28-7

C₁₁H₁₃NO₄. HCl

M.W. 223.23 36.46

D-3231

Levodopa EP Impurity D

Dopamine Impurity 1

CAS No. 50673-96-6

C8H9NO2

M.W. 151.17

D-3232

Levodopa EP Impurity D

Dopamine Impurity 2

CAS No. 39816-35-8

C9H9NO4

M.W. 195.17

D-3233

Levodopa EP Impurity D

Dopamine Impurity 3

CAS No. 108074-44-8

C8H7NO4

M.W. 181.15

D-3234

Levodopa EP Impurity D

Dopamine Impurity 4

CAS No. 4230-93-7

C10H11NO4

M.W. 209.20

D-3235

Levodopa EP Impurity D

Dopamine Impurity 5

CAS No. 22568-51-0

C9H9NO4

M.W. 195.17

D-3236

Levodopa EP Impurity D

Dopamine Impurity 6

CAS No. 37630-20-9

C10H11NO4

M.W. 209.20

D-3238

Levodopa EP Impurity D

Dopamine Impurity 8

CAS No. 103-49-1

C₁₄H₁₅N

M.W. 197.28

D-3239

Levodopa EP Impurity D

DL-dopaquinone

CAS No. 4430-97-1

C9H9NO4

M.W. 195.17

D-3240

Levodopa EP Impurity D

Levodopa Impurity 2

CAS No. 55-59-4

C₁₁H₁₅NO₄

M.W. 225.24

D-3241

Levodopa EP Impurity D

Levodopa Impurity 3

CAS No. 27313-65-1

C₁₃H₁₇NO₅

M.W. 267.28

D-3242

Levodopa EP Impurity D

(R)-3-Methoxytyrosine

CAS No. 15402-76-3

C10H13NO4

M.W. 211.22

D-3243

Levodopa EP Impurity D

Methyldopa EP Impurity C HCl H2O

C12H17NO4. HCl. H2O

M.W. 239.27 36.46 18.05

D-324

Levodopa EP Impurity D

Methyldopa EP Impurity D HCl (Carbidopa Impurity 3 HCl)

CAS No. 1369423-51-7

C₁₀H₁₃NO₄. HCl

M.W. 211.22 36.46

D-3264

Levodopa EP Impurity D

Dopamine Impurity 22

CAS No. 3131-52-0

C₈H₇NO₂

M.W. 149.15

D-3245

Levodopa EP Impurity D

Methyldopa Impurity 1

C₁₀H₁₃NO₇S

M.W. 291.27

D-3246

Levodopa EP Impurity D

Methyldopa Impurity 2

C₁₀H₁₃NO₇S

M.W. 291.27

D-3247

Levodopa EP Impurity D

Dopamine Impurity 9

CAS No. 582-59-2

C₈H₅NO₂

M.W. 147.13

D-3248

Levodopa EP Impurity D

Dopamine Impurity 10

C₁₁H₁₃NO₄

M.W. 223.23

D-3249

Levodopa EP Impurity D

Dopamine Impurity 11

C₉H₁₃NO₄

M.W. 199.21

D-3250

Levodopa EP Impurity D

Dopaquinone

CAS No. 25520-73-4

C₉H₉NO₄

M.W. 195.17

D-3251

Levodopa EP Impurity D

D-Dopaquinone

CAS No. 663910-97-2

C₉H₉NO₄

M.W. 195.17

D-3252

Levodopa EP Impurity D

Dopamine Impurity 12 (Dopaminechrome)

CAS No. 67992-45-4

C₈H₇NO₂

M.W. 149.15

D-3253

Levodopa EP Impurity D

Dopamine Impurity 8-d10 (Dibenzylamine-d10)

CAS No. 923282-09-1

C₁₄H₅D₁₀N

M.W. 207.34

D-3254

Levodopa EP Impurity D

Dopamine Impurity 13

CAS No. 500337-08-6

C₁₅H₁₅NO₃

M.W. 257.29

D-3255

Levodopa EP Impurity D

Dopamine Impurity 14

C₂₃H₂₁NO₆

M.W. 407.42

D-3256

Levodopa EP Impurity D

Dopamine Impurity 15

C₂₃H₂₅NO₆

M.W. 411.45

D-3257

Levodopa EP Impurity D

Dopamine Impurity 16 HCl

CAS No. 79831-99-5

C₁₆H₁₉NO₄. HCl

M.W. 289.33 36.46

D-3258

Levodopa EP Impurity D

Dopamine Impurity 17

C₁₆H₁₉NO₅

M.W. 305.33

D-3259

Levodopa EP Impurity D

Dopamine Impurity 18

C₁₅H₁₇NO₃

M.W. 259.31

D-3260

Levodopa EP Impurity D

Dopamine Impurity 19

C₁₅H₁₅NO₃

M.W. 257.29

D-3261

Levodopa EP Impurity D

Dopamine Impurity 20

CAS No. 2228475-70-3

C₈H₉ClO₃

M.W. 188.61

D-3262

Levodopa EP Impurity D

Dopamine Impurity 21

CAS No. 2097441-90-0

C₉H₁₁NO₂

M.W. 165.19

D-3263

Levodopa EP Impurity D

Dopamine-d3 HCl

CAS No. 53587-30-7

C₈H₈D₃NO₂. HCl

M.W. 156.20 36.46

D-3265

Levodopa EP Impurity D

Dopamine Impurity 23

CAS No. 15806-29-8

C₁₀H₁₅NO₂

M.W. 181.24

D-3266

Levodopa EP Impurity D

Dopamine Impurity 24 HCl

CAS No. 3166-74-3

C₁₀H₁₅NO₂. HCl

M.W. 181.24 36.46

D-3267

Levodopa EP Impurity D

Dopamine Impurity 25 HCl

CAS No. 3167-06-4

C₁₀H₁₅NO₂. HCl

M.W. 181.24 36.46

D-3271

Levodopa EP Impurity D

Dopamine Impurity 29

C₃₂H₄₃NO₅

M.W. 521.70

D-3275

Levodopa EP Impurity D

Dopamine Impurity 33

C₁₈H₂₂BrNO₃

M.W. 380.28

D-3276

Levodopa EP Impurity D

Dopamine Impurity 34

C₁₈H₁₉NO₃

M.W. 297.35

D-3277

Levodopa EP Impurity D

Dopamine Impurity 35

C₁₈H₁₉NO₃

M.W. 297.35

D-3278

Levodopa EP Impurity D

Dopamine Impurity 36

C₁₈H₁₉NO₄

M.W. 313.35

D-3279

Levodopa EP Impurity D

Dopamine Impurity 37

C₁₈H₁₉NO₄

M.W. 313.35

D-3280

Levodopa EP Impurity D

Dopamine Impurity 38

CAS No. 720685-12-1

C₁₈H₂₁NO₃

M.W. 299.37

D-3281

Levodopa EP Impurity D

Dopamine Impurity 39

C₁₈H₂₁NO₄

M.W. 299.37

D-3282

Levodopa EP Impurity D

Dopamine Impurity 40

CAS No. 7417-21-2

C₁₀H₁₄O₃

M.W. 182.22

D-3283

Levodopa EP Impurity D

Dopamine Impurity 41

CAS No. 3213-28-3

C₁₀H₁₅NO₂

M.W. 181.24

D-3284

Levodopa EP Impurity D

Levodopa Impurity 5 HCl

CAS No. 85134-09-4

C₁₁H₁₅NO₄. HCl

M.W. 225.24 36.46

D-3285

Levodopa EP Impurity D

Dopamine-N-beta-Glucoside

CAS No. 1053262-94-4

C₁₄H₂₁NO₇

M.W. 315.32

D-3286

Levodopa EP Impurity D

Dopamine-N-alfa-Glucoside

C₁₄H₂₁NO₇

M.W. 315.32

D-3287

Levodopa EP Impurity D

Dopamine-3-O-beta-Glucoside

C₁₄H₂₁NO₇

M.W. 315.32

D-3288

Levodopa EP Impurity D

Dopamine-3-O-alfa-Glucoside

C₁₄H₂₁NO₇

M.W. 315.32

D-3289

Levodopa EP Impurity D

Dopamine-4-O-beta-Glucoside

C₁₄H₂₁NO₇

M.W. 315.32

D-3290

Levodopa EP Impurity D

Dopamine-4-O-alfa-Glucoside

C₁₄H₂₁NO₇

M.W. 315.32

D-3291

Levodopa EP Impurity D

Dopamine Impurity 42 HBr

CAS No. 50309-53-0

C₁₀H₁₅NO₂. HBr

M.W. 181.24 80.91

D-3292

Levodopa EP Impurity D

Dopamine Impurity 43 HCl

CAS No. 5178-52-9

C₁₁H₁₈ClNO₂

M.W. 231.72

D-3293

Levodopa EP Impurity D

Levodopa EP Impurity C HCl (Levodopa USP Related Compound B HCl, DL-3-O-Methyldopa HCl)

CAS No. 91013-37-5

C₁₀H₁₃NO₄. HCl

M.W. 211.22 36.46

D-3294

Levodopa EP Impurity D

Methyldopa Impurity 3

CAS No. 1269789-01-6

C₁₁H₁₅NO₄

M.W. 225.24

D-3295

Levodopa EP Impurity D

Levodopa Impurity 6 HCl

CAS No. 51085-71-3

C₉H₉NO₄. HCl

M.W. 195.17 36.46

D-3296

Levodopa EP Impurity D

Dopamine Impurity 8 HCl

CAS No. 20455-68-9

C₁₄H₁₅N. HCl

M.W. 197.28 36.46

D-3297

Levodopa EP Impurity D

Levodopa EP Impurity C Sodium Salt (Levodopa USP Related Compound B Sodium Salt , DL-3-O-Methyldopa Sodium Salt )

C₁₀H₁₂NO₄. Na

M.W. 210.21 22.99

D-3298

Levodopa EP Impurity D

Dopamine Impurity 44

CAS No. 55982-97-3

C₁₃H₁₈N_{2/_O₂}

M.W. 234.30

D-3299

Levodopa EP Impurity D

Levodopa Impurity 7 HCl

C₁₀H₁₁NO₄. HCl

M.W. 209.20 36.46

D-32100

Levodopa EP Impurity D

Dopamine Impurity 45

C₁₇H₁₉NO₄

M.W. 301.34

D-32102

Levodopa EP Impurity D

Dopamine Impurity 46

C₁₄H₁₇NO₈

M.W. 327.29

D-32103

Levodopa EP Impurity D

Dopamine Impurity 47

CAS No. 67287-36-9

C₁₀H₁₄ClNO₂

M.W. 215.68

D-32104

Levodopa EP Impurity D

Dopamine Impurity 48

CAS No. 102851-70-7

C₈H₁₀ClNO₂

M.W. 187.62

D-32105

Levodopa EP Impurity D

Dopamine Impurity 49

CAS No. 925680-03-1

C₉H₁₂ClNO₂

M.W. 201.65

D-32106

Levodopa EP Impurity D

Dopamine Impurity 50

CAS No. 910391-24-1

C₉H₁₂ClNO₂

M.W. 201.65

D-32107

Levodopa EP Impurity D

Levodopa Impurity 8

CAS No. 64192-68-3

C₉H₉NO₅

M.W. 211.17

D-32108

Levodopa EP Impurity D

Rac-Levodopa EP Impurity A (Rac-Levodopa USP Related Compound A, 6-Hydroxy DOPA)

CAS No. 21373-30-8

C₉H₁₁NO₅

M.W. 213.19

D-32109

Levodopa EP Impurity D

Levodopa Impurity 9 HCl

C₁₀H₁₀N₂O₆. HCl

M.W. 254.20 36.46

D-32110

Levodopa EP Impurity D

Levodopa Impurity 10 HCl

CAS No. 144334-59-8

C₉H₁₀FNO₄. HCl

M.W. 215.18 36.46

D-32111

Levodopa EP Impurity D

Levodopa Impurity 11 HCl

C₉H₁₀N₂O₆. HCl

M.W. 242.19 36.46

D-32112

Levodopa EP Impurity D

Dopamine Impurity 51 HCl

C₁₆H₁₈N₂O₃. HCl

M.W. 286.33 36.46

D-32114

Levodopa EP Impurity D

Dopamine Impurity 52

CAS No. 24006-88-0

C₁₂H₁₂N₂O₂

M.W. 216.24

D-32115

Levodopa EP Impurity D

Dopamine Impurity 53

CAS No. 3327-75-1

C₁₂H₁₂N₂O₂

M.W. 216.24

D-32116

Levodopa EP Impurity D

Levodopa Impurity 12

CAS No. 2259692-12-9

C₁₂H₁₃NO₆

M.W. 267.24

D-32117

Levodopa EP Impurity D

Levodopa Impurity 13

CAS No. 2259692-11-8

C₁₂H₁₃NO₆

M.W. 267.24

D-32118

Levodopa EP Impurity D

Dopamine 3-O-Sulfate

CAS No. 51317-41-0

C₈H₁₁NO₅S

M.W. 233.24

D-32119

Levodopa EP Impurity D

Dopamine 4-O-Sulfate

CAS No. 38339-02-5

C₈H₁₁NO₅S

M.W. 233.24

D-32120

Levodopa EP Impurity D

Dopamine Impurity 54

CAS No. 15073-80-0

C₁₁H₁₅NO₄

M.W. 225.24

D-32121

Levodopa EP Impurity D

alfa-Methyldopamine

CAS No. 555-64-6

C₉H₁₃NO₂

M.W. 167.21

D-32122

Levodopa EP Impurity D

Methyldopa O-Sulfate (Meta)

CAS No. 72572-96-4

C₁₀H₁₃NO₇S

M.W. 291.27

D-32123

Levodopa EP Impurity D

N-Nitroso Dopamine Impurity 13

C₁₅H₁₄N₂O₄

M.W. 286.29

D-32124

Levodopa EP Impurity D

N-Nitroso Dopamine Impurity 18

C₁₅H₁₆N₂O₄

M.W. 288.30

D-32125

Levodopa EP Impurity D

Levodopa Impurity 14

CAS No. 194160-48-0

C₉H₁₁NO₄

M.W. 197.19

D-32126

Levodopa EP Impurity D

Levodopa Impurity 15

CAS No. 28900-64-3

C₉H₁₁NO₄

M.W. 197.19

D-32127

Levodopa EP Impurity D

Levodopa Impurity 16

CAS No. 26049-87-6

C₉H₁₁NO₄

M.W. 197.19

D-32128

Levodopa EP Impurity D

Levodopa Impurity 17

CAS No. 32361-24-3

C₉H₁₁NO₄

M.W. 197.19

D-32129

Levodopa EP Impurity D

Levodopa Impurity 18

CAS No. 552289-20-0

C₉H₁₁NO₄

M.W. 197.19

D-32130

Levodopa EP Impurity D

Dopamine Impurity 55

CAS No. 408314-48-7

C₉H₉NO₂

M.W. 163.18

D-32131

Levodopa EP Impurity D

Dopamine Impurity 56

CAS No. 133011-30-0

C₁₁H₁₅NO₂

M.W. 193.25

D-32132

Levodopa EP Impurity D

Dopamine Impurity 57

CAS No. 99004-00-9

C₁₈H₁₉NO₄

M.W. 313.35

D-32133

Levodopa EP Impurity D

4-O-Methyl Levodopa R-isomer

C₁₀H₁₃NO₄

M.W. 211.22

D-32134

Levodopa EP Impurity D

N-Nitroso Dopamine Impurity 43

C₁₁H₁₆N₂O₃

M.W. 224.26

D-32135

Levodopa EP Impurity D

Dopamine-d4 3-O-Sulfate

C₈H₇D₄NO₅S

M.W. 237.26

D-32136

Levodopa EP Impurity D

Dopamine-d4 4-O-Sulfate

C₈H₇D₄NO₅S

M.W. 237.26

D-32137

Levodopa EP Impurity D

Dopamine 3-Beta-D-Glucuronide Sodium Salt

CAS No. 69975-91-3

C₁₄H₁₈NO₈. Na

M.W. 328.30 22.99

D-32138

Levodopa EP Impurity D

Dopamine 4-Beta-D-Glucuronide

CAS No. 38632-24-5

C₁₄H₁₉NO₈

M.W. 329.31