The L-Cysteine,S-[(4-methoxyphenyl)methyl]-, with the CAS registry number 2544-31-2, is also known as S-(4-Methoxybenzyl)-L-cysteine and H-Cys(pMeOBzl)-OH. It belongs to the product categories of Pharmaceutical Intermediates; Amino Acids Derivatives; Amino Acids; Cysteine [Cys, C]; Amino Acids and Derivatives. This chemical's molecular formula is C₁₁H₁₅NO₃S and molecular weight is 241.31. What's more, its systematic name is called (2R)-2-Ammonio-3-[(4-methoxybenzyl)sulfanyl]propanoate.

Physical properties about L-Cysteine,S-[(4-methoxyphenyl)methyl]- are: (1) ACD/LogP: 2.01; (2) # of Rule of 5 Violations: 0; (3) ACD/LogD (pH 5.5): -0.49; (4) ACD/LogD (pH 7.4): -0.52; (5) ACD/BCF (pH 5.5): 1; (6) ACD/BCF (pH 7.4): 1; (7) ACD/KOC (pH 5.5): 1; (8) ACD/KOC (pH 7.4): 1; (9) #H bond acceptors: 4; (10) #H bond donors: 3; (11) #Freely Rotating Bonds: 7; (12) Polar Surface Area: 71.83 Å²; (13) Index of Refraction: 1.59; (14) Molar Refractivity: 64.8 cm³; (15) Molar Volume: 191.9 cm³; (16) Surface Tension: 53.4 dyne/cm; (17) Density: 1.257 g/cm³; (18) Flash Point: 206.4 °C; (19) Enthalpy of Vaporization: 70.74 kJ/mol; (20) Boiling Point: 417.6 °C at 760 mmHg; (21) Vapour Pressure: 1.01E-07 mmHg at 25 °C.

Preparation of L-Cysteine,S-[(4-methoxyphenyl)methyl]-: this chemical can be prepared by 1-Chloromethyl-4-methoxy-benzene with L-cysteine.

This reaction needs reagent TFA and solvent CH₂Cl₂ at temperature of 0 °C. The reaction time is 30 min. The yield is 81 %.

Uses of L-Cysteine,S-[(4-methoxyphenyl)methyl]-: it can react with S-(4-Methoxybenzyl)-L-cysteine to give L-Cysteine.

The reaction occurs with reagent CF₃CO₂H and solvent CH₂Cl₂ at temperature of 20 °C.

You can still convert the following datas into molecular structure:
(1) SMILES:[O-]C(=O)[C@@H]([NH3+])CSCc1ccc(OC)cc1
(2) InChI: InChI=1/C11H15NO3S/c1-15-9-4-2-8(3-5-9)6-16-7-10(12)11(13)14/h2-5,10H,6-7,12H2,1H3,(H,13,14)/t10-/m0/s1
(3) InChIKey:PQPZSPJVMUCVAQ-JTQLQIEIBO