3,4-Dihydroxyphenylacetic acid , 98% , 102-32-9

Synonym(s):
DOPAC;Homoprotocatechuic acid

CAS NO.：102-32-9

Empirical Formula: C8H8O4

Molecular Weight: 168.15

MDL number: MFCD00004338

EINECS: 203-024-1

PRODUCT Properties

• Melting point: 127-130 °C (lit.)
• Boiling point: 257.07°C (rough estimate)
• Density: 1.3037 (rough estimate)
• refractive index: 1.5090 (estimate)
• storage temp.: Inert atmosphere,Room Temperature
• solubility: water: soluble50mg/mL, clear, almost colorless
• pka: 4.42±0.10(Predicted)
• form: Powder, Crystals or Lumps
• color: White to off-white
• Water Solubility: Soluble in water and methanol.
• BRN: 2211017
• InChI: InChI=1S/C8H8O4/c9-6-2-1-5(3-7(6)10)4-8(11)12/h1-3,9-10H,4H2,(H,11,12)
• InChIKey: CFFZDZCDUFSOFZ-UHFFFAOYSA-N
• SMILES: C1(CC(O)=O)=CC=C(O)C(O)=C1
• LogP: 0.980
• CAS DataBase Reference: 102-32-9(CAS DataBase Reference)
• NIST Chemistry Reference: Acetic acid, (3,4-dihydroxyphenyl)-,(102-32-9)
• EPA Substance Registry System: 3,4-Dihydroxyphenylacetic acid (102-32-9)

Description and Uses

3,4-Dihydroxyphenylacetic acid (DOPAC) is a metabolite of the neurotransmitter dopamine. Dopamine can be metabolized into one of three substances. One such substance is DOPAC. Another is 3-methoxytyramine (3-MT). Both of these substances are degraded to form homovanillic acid (HVA). Both degradations involve the enzymes monoamine oxidase (MAO) and catechol-O-methyl transferase (COMT), albeit in reverse order: MAO catalyzes dopamine to DOPAC, and COMT catalyzes DOPAC to HVA; whereas COMT catalyzes dopamine to 3-MT and MAO catalyzes 3-MT to HVA. The third metabolic end-product of dopamine is norepinephrine (noradrenaline).
DOPAC can be oxidized by hydrogen peroxide, leading to the formation of toxic metabolites which destroy dopamine storage vesicles in the substantia nigra. This may contribute to the failure of levodopa treatment of Parkinson's disease. A MAO-B inhibitor such as selegiline or rasagiline can prevent this from happening.
wikipedia

3,4-Dihydroxyphenylacetic Acid is a metabolite of Dopamine (D533782).

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P264-P271-P280-P302+P352-P305+P351+P338
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• RTECS: AH0590000
• F: 10-23
• HS Code: 29182900