L-Tyrosine , 99% , 60-18-4

Synonym(s):
L-Tyrosine;TYR;Tyrosinase;(S)-(-)-Tyrosine;Monophenol monooxygenase

CAS NO.：60-18-4

Empirical Formula: C9H11NO3

Molecular Weight: 181.19

MDL number: MFCD00002606

EINECS: 200-460-4

PRODUCT Properties

• Melting point: >300 °C (dec.) (lit.)
• Boiling point: 314.29°C (rough estimate)
• alpha: -11.65 º (c=5,DIL HCL/H2O 50/50)
• Density: 1.34
• bulk density: 300kg/m3
• refractive index: -12 ° (C=5, 1mol/L HCl)
• FEMA: 3736 | L-TYROSINE
• Flash point: 176 °C
• storage temp.: Store below +30°C.
• solubility: 1 M HCl: 25 mg/mL
• form: powder
• pka: 2.2(at 25℃)
• color: White to Pale-brown
• PH: 6.5 (0.1g/l, H2O)
• Odor: odorless
• Odor Type: odorless
• biological source: rabbit
• optical activity: [α]20/D 11.5±1.0°, c = 4% in 1 M HCl
• Water Solubility: 0.45 g/L (25 ºC)
• JECFA Number: 1434
• Merck: 14,9839
• BRN: 392441
• Stability: Stable. Incompatible with strong oxidizing agents, strong reducing agents.
• InChIKey: OUYCCCASQSFEME-QMMMGPOBSA-N
• LogP: 0.38
• CAS DataBase Reference: 60-18-4(CAS DataBase Reference)
• NIST Chemistry Reference: Tyrosine(60-18-4)
• EPA Substance Registry System: L-Tyrosine (60-18-4)
• Absorption: cut-off at 310nm in 1 M HCl at 0.5M

Description and Uses

L-Tyrosine is one of the 22 proteinogenic amino acids that are used by cells to synthesize proteins. L-Tyrosine is biologically converted from L-phenylalanine and is in turn is converted to L-DOPA and further converted into the neurotransmitters: dopamine, norepinephrine, and epinephrine.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P305+P351+P338-P280a-P304+P340-P405-P501a
• Hazard Codes: Xi
• Risk Statements: 36/37/38-40
• Safety Statements: 26-36-37/39-22
• WGK Germany: 3
• RTECS: YP2275600
• TSCA: Yes
• HS Code: 29225000
• Hazardous Substances Data: 60-18-4(Hazardous Substances Data)
• Toxicity: LD50 orally in Rabbit: > 5110 mg/kg