ChemicalBook > CAS DataBase List > 3-METHOXY-DL-TYROSINE

3-METHOXY-DL-TYROSINE

Product Name
3-METHOXY-DL-TYROSINE
CAS No.
7636-26-2
Chemical Name
3-METHOXY-DL-TYROSINE
Synonyms
rac 3-O-Methyl DOPA;2-AMINO-3-(4-HYDROXY-3-METHOXYPHENYL)PROPANOIC ACID;NSC 122476;3-Methyl-DL-Dopa;DL-3-O-METHYL-DOPA;3-O-Methyl-DL-DOPA;(DL)-3-O-Methyldop;Levodopa Impurity C;DL-3-Methoxytyrosine;Tyrosine, 3-methoxy-
CBNumber
CB6667780
Molecular Formula
C10H13NO4
Formula Weight
211.21
MOL File
7636-26-2.mol
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3-METHOXY-DL-TYROSINE Property

Melting point:
268 °C (decomp)
Boiling point:
407.3±45.0 °C(Predicted)
Density 
1.321
storage temp. 
Hygroscopic, Refrigerator, under inert atmosphere
solubility 
Aqueous Acid (Slightly), Water (Very Slightly, Heated)
pka
2.24±0.20(Predicted)
form 
Solid
color 
White to Beige
Stability:
Hygroscopic
InChI
InChI=1S/C10H13NO4/c1-15-9-5-6(2-3-8(9)12)4-7(11)10(13)14/h2-3,5,7,12H,4,11H2,1H3,(H,13,14)/t7-/m0/s1
InChIKey
PFDUUKDQEHURQC-UHFFFAOYSA-N
SMILES
C(O)(=O)[C@H](CC1=CC=C(O)C(OC)=C1)N
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Safety

Risk Statements 
22-36/37/38
Safety Statements 
22-26-36/37/39
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
PHR2096
Product name
Levodopa Related Compound B
Purity
Pharmaceutical Secondary Standard; Certified Reference Material
Packaging
100mg
Price
$639
Updated
2025/07/31
Sigma-Aldrich
Product number
1420006
Product name
Levodopa Related Compound B
Packaging
50mg
Price
$1360
Updated
2025/07/31
TRC
Product number
M303805
Product name
rac3-O-MethylDOPA
Packaging
250mg
Price
$1390
Updated
2021/12/16
TRC
Product number
M303805
Product name
rac3-O-MethylDOPA
Packaging
10mg
Price
$85
Updated
2021/12/16
Usbiological
Product number
464161
Product name
rac 3-O-Methyl DOPA
Packaging
100mg
Price
$347
Updated
2021/12/16
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3-METHOXY-DL-TYROSINE Chemical Properties,Usage,Production

Uses

rac 3-O-Methyl DOPA (Levodopa EP Impurity C) is an impurity of Levodopa (D533751). A useful marker that can be used to screen for the absense of Aromatic L-amino acid decarboxylase (AADC).

Definition

ChEBI: 3-Methoxytyrosine is a tyrosine derivative.

3-METHOXY-DL-TYROSINE Preparation Products And Raw materials

Raw materials

Preparation Products

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3-METHOXY-DL-TYROSINE Suppliers

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7636-26-2, 3-METHOXY-DL-TYROSINERelated Search:

3-(3,4-DIHYDROXYPHENYL-2,5,6-D3)-L-ALANINE (2R)-Bornane-10,2-sultam (1R,2R)-(-)-1,2-Diaminocyclohexane L(-)-10-Camphorsulfonyl chloride 3-O-Methylcarbidopa 3,4-dihydroxyphenylacetone 2,3-Dihydroxy-DL-Phenylalanine 2,3-Dihydroxy-L-Phenylalanine 5,6-dihydroxy-1H-indole-2-carboxylic acid Levodopa L-DOPA-4'-Sulfate 3-METHOXY-L-TYROSINE 3,4-Dimethoxy-L-phenylalanine LEVODOPA RELATED COMPOUND A (50 MG) (3-(3,4,6-TRIHYDROXYPHENYL)-ALANINE) L-Tyrosine D-DOPA N,N-DIMETHYL-L-PHENYLALANINE 3-(3-HYDROXY-4-METHOXYPHENYL)-DL-BETA-ALANINE

  • rac 3-O-Methyl DOPA
  • Levodopa Impurity 3 (Levodopa EP Impurity C)
  • 2-Amino-3-(4-hydroxy-3-methoxyphenyl)
  • 2-AMINO-3-(4-HYDROXY-3-METHOXYPHENYL)PROPANOIC ACID
  • 3-METHOXY-DL-TYROSINE
  • DL-4-HYDROXY-3-METHOXYPHENYLALANINE
  • DL-3-O-METHYL-DOPA
  • 3-(4-Hydroxy-3-methoxyphenyl)alanine
  • 3-Methoxy-4-hydroxyphenylalanine
  • 4-Hydroxy-3-methoxyphenylalanine
  • DL-3-Methoxy-4-hydroxyphenylalanine
  • DL-3-Methoxytyrosine
  • NSC 122476
  • Levodopa EP Impurity C
  • (2RS)-2-Amino-3-(4-hydroxy-3-methoxyphenyl)propanoic acid
  • Levodopa EP Impurity C ((DL)-3-O-Methyldopa)
  • Tyrosine, 3-methoxy-
  • ALANINE,3-(4-HYDROXY-3-METHOXYPHENYL)- (8CI)
  • Levodopa EP Impurity C/ Levodopa Related Compound B (3-Methyl-DL-Dopa/ 3-Methoxy-DL-tyrosine)
  • 3-Methyl-DL-Dopa
  • Levodopa USP Related Compound B
  • 3-O-Methyl-DL-DOPA
  • Levodopa Impurity C
  • 2-Amino-3-(4-hydroxy-3-methoxyphenyl)propanoicaci
  • Levodopa EP Impurity C (Levodopa USP Related Compound B, DL-3-O-Methyldopa)
  • Levodopa EP Impurity 3
  • 2-AMINO-3-(4-HYDROXY-3-METHOXYPHENYL)PROPANOIC ACID HCL
  • Levodopa EP Impurity C Levodopa USP Related Compound B
  • (2RS)-2-Amino-3-(4-hydroxy-3-methoxyphenyl)propanoic Acid (3-Methoxy-DL-tyrosine
  • (DL)-3-O-Methyldop
  • Dopashydrazine Impurity 2
  • (DL)-3-O-Methyldopa (3-Methoxy-DL-tyrosine)
  • 7636-26-2
  • 7636-26-2