Skip to Content
Merck

Key Documents

View All Documentation

D9503

3,4-Dihydroxy-DL-phenylalanine

Synonym(s):

3-(3,4-Dihydroxyphenyl)-DL-alanine, DL-3-Hydroxytyrosine, DL-DOPA

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
(HO)2C6H3CH2CH(NH2)COOH
CAS Number:
63-84-3
Molecular Weight:
197.19
NACRES:
NA.32
PubChem Substance ID:
24894298
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
200-566-0
MDL number:
MFCD00063060
Beilstein/REAXYS Number:
3204800
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

form

powder

Quality Segment

100

mp

270-272 °C (lit.), 290 °C (dec.) (lit.)

SMILES string

NC(Cc1ccc(O)c(O)c1)C(O)=O

InChI

1S/C9H11NO4/c10-6(9(13)14)3-5-1-2-7(11)8(12)4-5/h1-2,4,6,11-12H,3,10H2,(H,13,14)

InChI key

WTDRDQBEARUVNC-UHFFFAOYSA-N

Gene Information

human ... DRD1(1812), DRD2(1813), DRD3(1814), DRD4(1815), DRD5(1816)
mouse ... DRD1(13488), DRD2(13489), DRD3(13490), DRD4(13491), DRD5(13492)
rat ... DRD1(24316), DRD2(24318), DRD3(29238), DRD4(25432), DRD5(25195)

Biochem/physiol Actions

3,4-dihydroxyphenylalanine is an immediate precursor of dopamine, which is a product of tyrosine hydroxylase.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCW5930
MKCR4414
MKCP2889
MKCK7506
MKCJ1537

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library