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110-66-7

Name 1-Pentanethiol
CAS 110-66-7
EINECS(EC#) 203-789-1
Molecular Formula C5H12S
MDL Number MFCD00004907
Molecular Weight 104.21
MOL File 110-66-7.mol

Chemical Properties

Appearance CLEAR COLORLESS LIQUID
Melting point  -76°C
Boiling point  126 °C (lit.)
density  0.84 g/mL at 25 °C(lit.)
vapor density  3.59
vapor pressure  27.4 mm Hg ( 37.7 °C)
FEMA  4333 | 1-PENTANETHIOL
refractive index  n20/D 1.446(lit.)
Fp  65 °F
storage temp.  Flammables area
solubility  0.16g/l
form  liquid
pka 10.51±0.10(Predicted)
color  Water-white to yellow liquid
Odor at 0.10 % in propylene glycol. sulfurous fatty roasted meaty vegetable
Odor Threshold 0.00000078ppm
Odor Type sulfurous
Water Solubility  practically insoluble
Sensitive  Air Sensitive
JECFA Number 1662
Merck  611
BRN  1730979
Dielectric constant 4.5499999999999998
Exposure limits NIOSH: Ceiling 0.5 ppm(2.1 mg/m3)
LogP 2.74
CAS DataBase Reference 110-66-7(CAS DataBase Reference)
NIST Chemistry Reference 1-Pentanethiol(110-66-7)
EPA Substance Registry System 110-66-7(EPA Substance)

Safety Data

Hazard Codes  F,Xn
Risk Statements 
R11:Highly Flammable.
R20/22:Harmful by inhalation and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S16:Keep away from sources of ignition-No smoking .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S24/25:Avoid contact with skin and eyes .
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  UN 1111 3/PG 2
WGK Germany  3
RTECS  SA3150000
9-13-23
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29309090
Safety Profile
Moderately toxic by inhalation. A weak sensitizer and allergen. Local contact may cause contact dermatitis. A flammable liquid and dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidming materials. Hypergolic reaction with concentrated nitric acid. To fight fire, use foam, CO2, dry chemical. See also MERCAPTANS
Hazardous Substances Data 110-66-7(Hazardous Substances Data)
Toxicity
LCLo ihl-rat: 2000 ppm/4H JIHTAB 31,343,49

Hazard Information

Material Safety Data Sheet(MSDS)

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