Molecule structure of 2-Mercaptoethanesulfonic acid (CAS NO.3375-50-6):

IUPAC Name: 2-Sulfanylethanesulfonic acid 
Molecular Weight: 142.19724 [g/mol]
Molecular Formula: C₂H₆O₃S₂ 
Index of Refraction: 1.539
Molar Refractivity: 29.5 cm³
Molar Volume: 94.1 cm³
Surface Tension: 61.3 dyne/cm
Density: 1.51 g/cm³
XLogP3-AA: -0.6
H-Bond Donor: 1
H-Bond Acceptor: 3
Rotatable Bond Count: 2
Exact Mass: 141.975835
MonoIsotopic Mass: 141.975835
Topological Polar Surface Area: 63.8
Heavy Atom Count: 7
Canonical SMILES: C(CS(=O)(=O)O)S
InChI: InChI=1S/C2H6O3S2/c3-7(4,5)2-1-6/h6H,1-2H2,(H,3,4,5)
InChIKey: ZNEWHQLOPFWXOF-UHFFFAOYSA-N
EINECS: 222-167-0
Product Categories of 2-Mercaptoethanesulfonic acid (CAS NO.3375-50-6): Reagents for Protein SequencingAmino Acid Analysis; Protein Sequencing; Protein Structural Analysis; Reagents for amino acid derivatisation&detection; Regents for amino acid analysis

Hazard Codes: C
Risk Statements: 34 
R34:Causes burns.
Safety Statements: 26-27-36/37/39-45 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S27:Take off immediately all contaminated clothing. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 3265 8/PG 3
WGK Germany: 2
F: 10-23

 2-Mercaptoethanesulfonic acid (CAS NO.3375-50-6) is also named as Mercaptoethanesulfonic acid ; beta-Mercaptoethanesulfonic acid ; 2-Sulfanylethanesulfonic acid ; Ethanesulfonic acid, 2-mercapto- ; 2-Mercaptoethanesulfonate .