IUPAC Name:  3-Bis(3-oxido-3-oxopropyl)phosphanylpropanoate
Synonyms:  TCEP·HCl ; TCEP
The Molecular Formula of  Tris(2-carboxyethyl)phosphine hydrochloride (51805-45-9):C₉H₁₂O₆P
The Molecular Weight of  Tris(2-carboxyethyl)phosphine hydrochloride (51805-45-9): 247.1634g/mol
The Molecular Structure of  Tris(2-carboxyethyl)phosphine hydrochloride (51805-45-9):
Polar Surface Area: 125.49 Å²
Polarizability: 10^-24cm³
Flash Point: 267.9 °C
 Enthalpy of Vaporization: 86.67 kJ/mol
Boiling Point: 519.4 °C at 760 mmHg
Vapour Pressure: 3.51E-12 mmHg at 25°C 

1.  Tris(2-carboxyethyl)phosphine hydrochloride (51805-45-9) can be used as biochemical tool for selective reduction of disulfide bridges at low pH.
2.It can also be used as reductant and phosphitylating agent.

Hazard Codes C,Xi 
Risk Statements 36/38-36/37/38-34
R36/38:Irritating to eyes and skin. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R34:Causes burns.
Safety Statements 26-37/39-36/37/39-27 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39:Wear suitable gloves and eye/face protection. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S27:Take off immediately all contaminated clothing.
RIDADR: UN 3261 8/PG 2
WGK Germany: 2
F: 10
PackingGroup: III