Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: l-3,4-dihydroxyphenylalanine methyl ester hydrochloride
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

1421-65-4

1421-65-4 structure

1421-65-4 structure

Name: L-3,4-Dihydroxyphenylalanine Methyl ester hydrochloride
Chemical Name: L-DOPA Methyl Ester Hydrochloride
CAS Number: 1421-65-4
Molecular Formula: C₁₀H₁₄ClNO₄
Molecular Weight: 247.676
Create Date: 2018-12-11 16:07:55
Modify Date: 2026-07-03 16:55:46
Melevodopa hydrochloride is a biochemical.

Name	L-DOPA Methyl Ester Hydrochloride
Synonyms	L-3,4-DIHYDROXYPHENYLALANINE METHYLESTER HYDROCHLO methyldopa hydrochloride Levodopa Impurity 10 Dopamine, methyl ester methyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate,hydrochloride Methyl 3-hydroxy-L-tyrosinate hydrochloride (1:1) methyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate hydrochloride L -3,4-Dihydroxyphenylalanine methyl ester hydrochloride 3-hydroxy- L-Tyrosine methyl ester, hydrochloride (1:1) Methyl L-3-(3,4-dihydroxyphenyl)alaninate hydrochloride L-3,4-dihydroxyphenylalanine methyl*ester hydroch METHYL L-DOPA HYDROCHLORIDE 3,4-DIHYDROXY PHENYLALANINE METHYL ESTER HYDROCHLORIDE L-Tyrosine, 3-hydroxy-, methyl ester, hydrochloride (1:1) 3-Hydroxy-L-tyrosine Methyl Ester Hydrochloride 4-DIHYDROXYPHENYLALANINE METHYL ESTER HYDROCHLORIDE Levodopa methyl ester hydrochloride L-DOPA Me ester hydrochloride Methyl 2-amino-3-(3,4-dihydroxyphenyl) H-TYR(3-HYDROXY)-OME HCL Levodopa methyl ester hydrochloride L-3,4-Dihydroxyphenylalanine methyl ester hydrochloride 2-Amino-3-(3,4-dihydroxyphenyl)-propanoic acid methylester hydrochloride Methyl 3-Hydroxy-L-tyrosine Hydrochloride 3,4-Dihydroxyphenyl-L-alanine methyl ester hydrochloride LevoMet Hydrochloride [(2S)-3-(3,4-dihydroxyphenyl)-1-methoxy-1-oxopropan-2-yl]azanium 3-(3,4-Dihydroxyphenyl)alanine Methyl Ester Hydrochloride L-3,4-DIHYDROXYPHENYLALANINE METHYL ESTER HYDROCHLORIDE Melevodopa Hydrochloride L-Tyrosine, 3-hydroxy-, methyl ester, hydrochloride (S)-2-Amino-3-(3,4-dihydroxyphenyl)propanoic acid hydrochloride MFCD00038958 Melevodopa TIANFUCHEM-1-4-High purity L-3,4-DIHYDROXYPHENYLALANINE METHYL ESTER HYDROCHLORIDE in stock (S)-Methyl 2-amino-3-(3,4-dihydroxyphenyl)propanoate hydrochloride Nsc295453 L-3, 4-Dihydroxyphenylalanine methyleester hydrochloride L-3,4-Dihydroxyphenylalanine methyl ester L-DOPA Me ester hydrochloride H-PHE(3,4-DI-HYDROXY)-OME HCL Methyl L-DOPA hydrochloride Hydroxy-L-tyrosine methyl ester, 3 3,4-Dihydroxy-L-phenylalanine Methyl Ester Hydrochloride L-DOPA Methyl Ester HCl

Density	1.322g/cm3
Boiling Point	384.4ºC at 760mmHg
Molecular Formula	C₁₀H₁₄ClNO₄
Molecular Weight	247.676
Flash Point	186.3ºC
Exact Mass	247.061142
PSA	92.78000
LogP	1.64290
Vapour Pressure	1.86E-06mmHg at 25°C
Storage condition	-20°C

Hazard Codes	Xi
RIDADR	NONH for all modes of transport
HS Code	2923900090

67-56-1 structure

67-56-1

59-92-7 structure

59-92-7

~99%

1421-65-4 structure

1421-65-4

Literature: Journal of Medicinal Chemistry, , vol. 44, # 21 p. 3488 - 3503

59-92-7 structure

59-92-7

~%

1421-65-4 structure

1421-65-4

Literature: US5952328 A1, ; US 5952328 A

60-29-7 structure

60-29-7

59-92-7 structure

59-92-7

~%

1421-65-4 structure

1421-65-4

Literature: US5387610 A1, ;

Precursor 3
67-56-1 59-92-7 60-29-7
DownStream 0

HS Code	2923900090
Summary	2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

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