ChemicalBook >> CAS DataBase List >>3-Methoxy-DL-tyrosine

3-Methoxy-DL-tyrosine

CAS No.
7636-26-2
Chemical Name:
3-Methoxy-DL-tyrosine
Synonyms
rac 3-O-Methyl DOPA;Levodopa EP Impurity C;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
CBNumber:
CB6667780
Molecular Formula:
C10H13NO4
Molecular Weight:
211.21
MDL Number:
MFCD00063077
MOL File:
7636-26-2.mol
MSDS File:
SDS
Last updated:2026-09-12 18:54:21

3-Methoxy-DL-tyrosine Properties

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
Major Application pharmaceutical (small molecule)
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
FDA UNII SO86T1OB2P
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H335-H319-H302
Precautionary statements  P264-P280-P302+P352-P321-P332+P313-P362-P264-P270-P301+P312-P330-P501-P264-P280-P305+P351+P338-P337+P313P
Risk Statements  22-36/37/38
Safety Statements  22-26-36/37/39
WGK Germany  WGK 3
Storage Class 11 - Combustible Solids
NFPA 704
1
1 0

3-Methoxy-DL-tyrosine price More Price(38)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich PHR2096 Levodopa Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material 7636-26-2 100mg $691 2026-04-30 Buy
Sigma-Aldrich 1420006 Levodopa Related Compound B 7636-26-2 50mg $1460 2026-04-30 Buy
Cayman Chemical 36443 3-Methoxytyrosine ≥95% 7636-26-2 25mg $74 2026-04-30 Buy
Cayman Chemical 36443 3-Methoxytyrosine ≥95% 7636-26-2 50mg $132 2026-04-30 Buy
Cayman Chemical 36443 3-Methoxytyrosine ≥95% 7636-26-2 100mg $235 2026-04-30 Buy
Product number Packaging Price Buy
PHR2096 100mg $691 Buy
1420006 50mg $1460 Buy
36443 25mg $74 Buy
36443 50mg $132 Buy
36443 100mg $235 Buy

3-Methoxy-DL-tyrosine Chemical Properties,Uses,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.

93-28-7
7636-26-2
Synthesis of 3-Methoxy-DL-tyrosine from EUGENOL ACETATE
Global( 144)Suppliers
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Chembon Pharmaceutical Co., Ltd. 028-84252981 18583719936 sales@chembon.com.cn China 854 64
Daicel Chiral Technologies (China)CO.,LTD 021-50460086-9 15921403865 han_yajun@dctc.daicel.com China 7909 65
Shanghai Sunway Pharmaceutical Technology Co., Ltd 13761987713 hxzheng@sunwaypharm.cn China 8663 57
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-4000505016 13380397412 3001272453@qq.com China 5000 50
Thermo Fisher Scientific 800-810-5118 cnchemical@thermofisher.com China 17752 75
Shanghai Jian Chao Chemical Technology Co., Ltd. 150-2103-5486 18017383231 983544897@qq.com China 9336 55
9ding chemical ( Shanghai) Limited 4009209199 sales@9dingchem.com China 22497 55
Shanghai Yolne Chemical Co., Ltd. 021-62960152 934678158@qq.com China 9886 55

View Lastest Price from 3-Methoxy-DL-tyrosine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-METHOXY-DL-TYROSINE pictures 2026-07-15 3-METHOXY-DL-TYROSINE
7636-26-2
$31.00-95.00 99.90% 10g TargetMol Chemicals Inc.

3-Methoxy-DL-tyrosine Spectrum

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 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 (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 Impurity C Levodopa USP Related Compound B 3-O-Methyl-DL-DOPA Levodopa EP Impurity C (Levodopa USP Related Compound B, DL-3-O-Methyldopa) 2-Amino-3-(4-hydroxy-3-methoxyphenyl)propanoicaci 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) Levodopa EP Impurity-C/Levodopa Related Compound B Levodopa EP Impurity C Tyrosine 3-Methoxy Derivative 3-Methoxy-DL-tyrosine 7636-26-2 7636-26-2