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Chemical Name:
n-C4H9SH;FEMA 3478;Butylthiol;NCI-C60866;Bear skunk;thiobutanol;BUTANETHIOL;n-Butylthiol;MERCAPTAN C4;n-Butanethiol
Molecular Formula:
Formula Weight:
MOL File:

Butanethiol Properties

Melting point:
−116 °C(lit.)
Boiling point:
98 °C(lit.)
0.842 g/mL at 25 °C(lit.)
vapor density 
3.1 (vs air)
vapor pressure 
83 mm Hg ( 37.7 °C)
refractive index 
n20/D 1.443(lit.)
Flash point:
55 °F
storage temp. 
Flammables area
explosive limit
Water Solubility 
0.60 g/100 mL. Slightly soluble
Air Sensitive
Stable. Incompatible with oxidizing agents, bases, alkali metals. Highly flammable. May discolour on exposure to air.
CAS DataBase Reference
109-79-5(CAS DataBase Reference)
NIST Chemistry Reference
EPA Substance Registry System
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F,Xn
Risk Statements  11-20/22-36/37/38-21/22-43
Safety Statements  16-23-26-36-9-36/37-33-37-37/39
RIDADR  UN 2347 3/PG 2
WGK Germany  3
RTECS  EK6300000
HazardClass  3
PackingGroup  II
Hazardous Substances Data 109-79-5(Hazardous Substances Data)
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
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H320 Causes eye irritation Serious eye damage/eye irritation Category 2B Warning P264, P305+P351+P338,P337+P313
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H371 May cause damage to organs Specific target organ toxicity, single exposure Category 2 Warning P260, P264, P270, P309+P311, P405,P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378 In case of fire: Use … for extinction.
P403 Store in a well-ventilated place.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.

Butanethiol price More Price(12)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 112925 1-Butanethiol 99% 109-79-5 250ml $37.5 2017-11-08 Buy
Sigma-Aldrich 112925 1-Butanethiol 99% 109-79-5 1l $103 2017-11-08 Buy
TCI Chemical B0685 1-Butanethiol >97.0%(GC) 109-79-5 25mL $18 2017-11-08 Buy
TCI Chemical B0685 1-Butanethiol >97.0%(GC) 109-79-5 500mL $43 2017-11-08 Buy
Alfa Aesar 43421 1-Butanethiol, 98% 109-79-5 25ml $16.6 2017-11-08 Buy

Butanethiol Chemical Properties,Uses,Production

Chemical Properties

colourless liquid

General Description

A clear, colorless liquid with a strong skunk-like odor. Flash point in range -18 to 43°F. Less dense than water and slightly soluble in water. Vapors heavier than air.

Air & Water Reactions

Highly flammable. Slightly soluble in water.

Reactivity Profile

Butanethiol is incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. May liberate hydrogen sulfide upon decomposition or reaction with an acid. Incompatible with strong oxidizing agents [USCG, 1999].

Health Hazard

Inhalation causes loss of sense of smell; muscular weakness. convulsions, and respiratory paralysis may follow prolonged exposure. Contact of liquid with eyes or skin causes slight irritation. Ingestion causes nausea.

Butanethiol Preparation Products And Raw materials

Raw materials

Preparation Products

Butanethiol Suppliers

Global( 124)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96820 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 40398 62
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30309 84
TCI (Shanghai) Development Co., Ltd. 800-988-0390
021-67121385 China 22830 81
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820
86 (10) 60270825 China 3434 62
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 China 44192 61
Beijing Ouhe Technology Co., Ltd +86-10-4006331231;+86-10-51280831;+86-10-82967028
+86-10-82967029 China 10814 60
JinYan Chemicals(ShangHai) Co.,Ltd. 13817811078,021-50426030
86-021-50426522,50426273 China 10090 60
Adamas Reagent, Ltd. 400-600-9262 China 14018 59
Chemfun Medical Technology(Shanghai) Co., Ltd. 021-67220633 & 021-37212706
+86-21-67220638 China 21899 59

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