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1-Propanethiol structure
Chemical Name:
NPM;NPM(TM);n-C3H7SH;FEMA 3521;Propanethiol;MERCAPTAN C3;n-propylthiol;1-Propanediol;Propan-1-thiol;1-Propanethoil
Molecular Formula:
Formula Weight:
MOL File:

1-Propanethiol Properties

Melting point:
-113 °C
Boiling point:
67-68 °C(lit.)
0.841 g/mL at 25 °C(lit.)
vapor density 
2.54 (vs air)
vapor pressure 
122 mm Hg ( 20 °C)
refractive index 
n20/D 1.437(lit.)
Flash point:
−5 °F
storage temp. 
Flammables area
pK1:10.86 (25°C)
Water Solubility 
Air Sensitive
JECFA Number
CAS DataBase Reference
107-03-9(CAS DataBase Reference)
NIST Chemistry Reference
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F,Xn,N
Risk Statements  11-22-37/38-41-50-36/37/38-21/22
Safety Statements  16-26-39-57-36/37/39-29
RIDADR  UN 2402 3/PG 2
WGK Germany  3
RTECS  TZ7300000
HazardClass  3
PackingGroup  II
HS Code  29309070
Hazardous Substances Data 107-03-9(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 1790 mg/kg
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H400 Very toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 1 Warning P273, P391, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P403 Store in a well-ventilated place.
P403+P235 Store in a well-ventilated place. Keep cool.

1-Propanethiol price More Price(16)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 44784 Propyl mercaptan analytical standard 107-03-9 1ml $47.9 2018-11-13 Buy
Sigma-Aldrich P50757 1-Propanethiol 99% 107-03-9 2l $130 2018-11-13 Buy
TCI Chemical P0488 1-Propanethiol >98.0%(GC) 107-03-9 25mL $14 2018-11-22 Buy
TCI Chemical P0488 1-Propanethiol >98.0%(GC) 107-03-9 500mL $39 2018-11-22 Buy
Alfa Aesar 043420 1-Propanethiol, 98% 107-03-9 500ml $40.4 2018-11-16 Buy

1-Propanethiol Chemical Properties,Uses,Production


Propane thiol is an organic compound with the molecular formula C3H8S. It belongs to the group of thiols. It is a colorless liquid with a strong, offensive odor. It is moderately toxic and is less dense than water and slightly soluble in water. It is used as a chemical intermediate and a herbicide . It is highly flammable and it gives off irritating or toxic fumes (or gases) in a fire. Heating it will cause rise in pressure with risk of bursting.

Chemical Properties

Propanethiol is chemically classified among the thiols, which are organic compounds with molecular formulas and structural formulas similar to alcohols, except that sulfur-containing sulfhydryl group (- SH) replaces the oxygen - containing hydroxyl group in the molecule. Propanethiol's basic molecular formula is C3H7SH, and its structural formula is similar to that of the alcohol n-propanol.

Chemical Properties

clear colourless liquid


Chemical intermediate, herbicide.


ChEBI: An alkanethiol that is propane substituted by a thiol group at position 1.

General Description

A colorless liquid with a strong, offensive odor. Moderately toxic. Flash point below 0°F. Less dense than water and slightly soluble in water. Hence floats on water. Used as a chemical intermediate and a herbicide.

Air & Water Reactions

Highly flammable. Vapors explosive when exposed to heat, flame or sparks. Slightly soluble in water.

Reactivity Profile

1-Propanethiol emits toxic fumes of oxides of sulfur when heated to decomposition. Reacts violently on contact with calcium hypochlorite [Chem. Eng. News, 1973, 51(26), p. 14].


Highly flammable, dangerous fire risk.

Health Hazard

Inhalation causes muscular weakness, convulsions, and respiratory paralysis; high concentrations may cause pulmonary irritation. Contact with liquid causes irritation of eyes and skin. Ingestion causes irritation of mouth and stomach.

Fire Hazard

Special Hazards of Combustion Products: Toxic sulfur dioxide is generated.

Safety Profile

A poison. Moderately toxic by intraperitoneal route. Mildly toxic by inhalation. A severe eye irritant. A flammable liquid and very dangerous fire hazard when exposed to heat or flame. Explodes on contact with calcium hypochlorite. When heated to decomposition it emits toxic fumes of SOx. See also MERCAPTANS.

Purification Methods

Purify the thiol by dissolving it in aqueous 20% NaOH, extracting with a small amount of *benzene and steam distilling until clear. After cooling, the solution is acidified slightly with 15% H2SO4, and the thiol is distilled out, dried with anhydrous CaSO4 or CaCl2, and fractionally distilled under nitrogen. [Mathias & Filho J Phys Chem 62 1427 1958.] Also purify it by liberating the mercaptan by adding dilute HCl to the residue remaining after steam distilling. After direct distillation from the flask, and separation of the water, the mercaptan is dried (Na2SO4) and distilled under nitrogen. [Beilstein 1 IV 1449.]

1-Propanethiol Preparation Products And Raw materials

Raw materials

Preparation Products

1-Propanethiol Suppliers

Global( 138)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32606 55
Xiamen AmoyChem Co., Ltd
+86 (0)592-605 1114 CHINA 6402 58
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 24093 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254 CHINA 20177 58
Jinan Finer Chemical Co., Ltd
+86-531-88989539 CHINA 940 58
career henan chemical co
+86-371-86658258 CHINA 19975 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40376 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30273 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
021-67121385 China 24637 81

View Lastest Price from 1-Propanethiol manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-07-30 1-Propanethiol
US $100.00 / KG 25KG 98% 25 career henan chemical co

1-Propanethiol Spectrum

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