Molecular Structure:

Molecular Formula: C₄H₁₀ClNO₃
Molecular Weight: 155.5801
IUPAC Name: Methyl 2-amino-3-hydroxypropanoate hydrochloride
Synonyms of Methyl-DL-serine hydrochloride (CAS NO.5619-04-5): EINECS 227-047-1 ; Methyl DL-serinate HCl
CAS NO: 5619-04-5
Classification Code: Amino ACIDS SERIES ; Serine [Ser, S] ; Amino Acid Methyl Esters ; Amino Acids ; Amino Acids (C-Protected) ; Biochemistry ; Amino Acids ; I - ZPeptide Synthesis ; Modified Amino Acids ; Amino Acid Derivatives ; Peptide Synthesis ; Serine
Melting point: 134-136 °C 
Flash Point: 95.8 °C
Enthalpy of Vaporization: 54.8 kJ/mol
Boiling Point: 234.7 °C at 760 mmHg
Vapour Pressure of Methyl-DL-serine hydrochloride (CAS NO.5619-04-5): 0.00953 mmHg at 25°C

Hazard Codes of Methyl-DL-serine hydrochloride (CAS NO.5619-04-5): Xi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36: Wear suitable protective clothing.
WGK Germany: 3