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110-66-7

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Basic Information
CAS No.: 110-66-7
Name: 1-Pentanethiol
Article Data: 25
Molecular Structure:
Molecular Structure of 110-66-7 (1-Pentanethiol)
Formula: C5H12S
Molecular Weight: 104.216
Synonyms: Amylthioalcohol;Mercaptopentane;Pentyl mercaptan;Pentylthiol;n-Amyl mercaptan;n-Amylthiol;n-Pentanethiol;n-Pentyl mercaptan;n-Pentylthiol;Amylmercaptan (7CI);Pentanethiol (6CI);1-Mercaptopentane;1-Pentyl mercaptan;1-n-Pentanethiol;Amyl hydrosulfide;Amyl sulfhydrate;
EINECS: 203-789-1
Density: 0.832 g/cm3
Melting Point: -76 °C
Boiling Point: 126.3 °C at 760 mmHg
Flash Point: 18.3 °C
Solubility: practically insoluble in water
Appearance: clear colorless to light-yellow liquid
Hazard Symbols: FlammableF, HarmfulXn
Risk Codes: 11-20/22-36/37/38
Safety: 16-23-24/25-37/39-26
Transport Information: UN 1111 3/PG 2
PSA: 38.80000
LogP: 2.10640
Synthetic route
32446-40-5

1-thiocyanatopentane

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With tetraphosphorus decasulfide In toluene for 1.5h; Reflux;87%

hexanethioic acid S-pentyl ester

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With titanium tetrachloride; zinc In dichloromethane at 25℃; for 0.166667h;85%

C8H16O2S

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With sodium tetrahydroborate In ethanol at 20℃; for 1h;70%
543-59-9

1-Chloropentane

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With tetraethylammonium iodide; 1-(2-hydroxyethyl)-4,6-diphenylpyridin-2-thione In acetonitrile for 26h; Ambient temperature;61%
71-41-0

pentan-1-ol

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With phosphorous (V) sulfide; benzene Erhitzen des Reaktionsprodukts auf 190grad;
110-53-2

1-Bromopentane

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With sodium hydrogensulfide; ethanol
With ethanol; potassium hydrosulfide
With potassium hydrosulfide
110-53-2

1-Bromopentane

17356-08-0

thiourea

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With water Zersetzen des Thiuroniumsalzes mit starker KOH auf dem Wasserbad;
56342-26-8

cyano-dithiocarbonimidic acid dipentyl ester

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With hydrogenchloride
110-89-4

piperidine

A

1613-51-0

sulfure de pentamethylene

B

1795-09-1

2-methylthiolane

C

110-86-1

pyridine

D

10324-58-0

1-pentylpiperidine

E

110-66-7

n-pentanethiol

Conditions
ConditionsYield
With hydrogen sulfide; hydrogen; sulfidized Ni-W at 300℃; under 105008 Torr; for 5h; Product distribution;A n/a
B n/a
C 0.59 % Chromat.
D 3.59 % Chromat.
E n/a
22537-07-1

4-pentenyl-1-amine

A

1613-51-0

sulfure de pentamethylene

B

1795-09-1

2-methylthiolane

C

872-10-6

diamyl sulfide

D

110-66-7

n-pentanethiol

E

17651-37-5

pent-4-ene-1-thiol

Conditions
ConditionsYield
With hydrogen sulfide; hydrogen; sulfidized Ni-W at 300℃; for 5h; Product distribution;
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    ame 1-Pentanethiol Synonyms n-Amyl mercaptan CAS NO. 110-66-7 Molecular Formula C5H12S

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Chemistry

MF: C5H12S
MW: 104.21
EINECS: 203-789-1
mp:  -76°C
bp:  126 °C(lit.)
density:  0.84 g/mL at 25 °C(lit.)
vapor pressure:  27.4 mm Hg ( 37.7 °C)
refractive index:  n20/D 1.446(lit.)
Fp:  65 °F
storage temp:  Flammables area
Water Solubility:  practically insoluble
Sensitive:  Air Sensitive
Merck:  611
BRN:  1730979
The structure of 1-PENTANETHIOL  is:

         

 

Toxicity Data With Reference

1、RTECS#: CAS# 110-66-7: SA3150000
2、LD50/LC50: RTECS: Not available. 
3、Carcinogenicity: 1-Pentanethiol - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
4、Other: The toxicological properties have not been fully investigated. See actual entry in RTECS for complete information. 

 

   

    

   

Consensus Reports

1-PENTANETHIOL is reported in EPA TSCA Inventory.

Safety Profile

Hazard Codes:  F,Xn
Risk Statements:  11-20/22-36/37/38
Safety Statements:  16-23-24/25-37/39-26
RIDADR:  UN 1111 3/PG 2
WGK Germany:  3
RTECS:  SA3150000
F:  9-13-23
HazardClass:  3
PackingGroup:  II
Hazardous Substances Data: 110-66-7(Hazardous Substances Data)
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 oxidizing materials. Hypergolic reaction with concentrated nitric acid. To fight fire, use foam, CO2, dry chemical.

Standards and Recommendations

NIOSH REL: (Thiols (n-Alkane Mono)) CL 0.5 ppm/15M
DOT Classification:  3; Label: Flammable Liquid, Poison (UN 1228); DOT Class: 6.1; Label: Poison, Flammable Liquid (UN 3071)

Specification

1、Fire Fighting Measures  of  1-PENTANETHIOL
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors can travel to a source of ignition and flash back. Will burn if involved in a fire. Flammable liquid and vapor. Containers may explode if exposed to fire. 
Extinguishing Media: Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide. 
2、Handling and Storage  of  1-PENTANETHIOL
Handling: Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. This product may be under pressure; cool before opening. Storage: Keep away from sources of ignition. Store in a cool, dry place. Keep container closed when not in use. Flammables-area. Store under nitrogen.