Basic information Safety Related Supplier
2-Mercaptoethanol Structure

2-Mercaptoethanol

Chemical Properties

Melting point -100 °C
Boiling point 157 °C (lit.)
Density  1.114 g/mL at 25 °C (lit.)
vapor density  2.69 (vs air)
vapor pressure  1 mm Hg ( 20 °C)
refractive index  n20/D 1.500(lit.)
FEMA  4582 | 2-HYDROXYETHANETHIOL
Flash point 165 °F
storage temp.  Store below +30°C.
solubility  H2O: 1 mL/mL
pka 9.72(at 25℃)
form  liquid
color  Clear colorless to slightly yellow
Specific Gravity 1.119 (20/4℃)
Odor Disagreeable odor
PH Range 4.5 - 6 at 500 g/l at 20 °C
PH 4.5-6 (500g/l, H2O, 20℃)
explosive limit 2.3-18%(V)
Water Solubility  soluble
FreezingPoint  <100℃
Sensitive  Air Sensitive & Hygroscopic
λmax λ: 260 nm Amax: 1.5
λ: 280 nm Amax: 0.3
Merck  14,5869
JECFA Number 1925
BRN  773648
Henry's Law Constant 5.5×101 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
Stability Air Sensitive
InChI 1S/C2H6OS/c3-1-2-4/h3-4H,1-2H2
InChIKey DGVVWUTYPXICAM-UHFFFAOYSA-N
SMILES OCCS
LogP -0.20
CAS DataBase Reference 60-24-2(CAS DataBase Reference)
NIST Chemistry Reference Ethanol, 2-mercapto-(60-24-2)
EPA Substance Registry System 2-Mercaptoethanol (60-24-2)
Absorption ≤0.31 at 280nm
≤1.50 at 260nm

Safety Information

Hazard Codes  T,N
Risk Statements  20/22-24-34-51/53-36/37/38-22-23/24/25-50/53-48/22-43-41-38
Safety Statements  26-36/37/39-45-61-29-23-27-60
RIDADR  UN 2966
WGK Germany  3
RTECS  KL5600000
3-10-13-23
Autoignition Temperature 295 °C
TSCA  TSCA listed
HazardClass  6.1
PackingGroup  II
HS Code  29309070
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 2 Dermal
Acute Tox. 3 Inhalation
Acute Tox. 3 Oral
Aquatic Acute 1
Aquatic Chronic 2
Eye Dam. 1
Repr. 2
Skin Irrit. 2
Skin Sens. 1A
STOT RE 2 Oral
Hazardous Substances Data 60-24-2(Hazardous Substances Data)

MSDS

Usage And Synthesis