ChemicalBook > CAS DataBase List > Bis(methylthio)methane

Bis(methylthio)methane

Product Name
Bis(methylthio)methane
CAS No.
1618-26-4
Chemical Name
Bis(methylthio)methane
Synonyms
2,4-DITHIAPENTANE;FEMA 3878;Bis(methyL;CH3SCH2SCH3;thio)methane;truffle sulfide;DIMETHYLTHIOMETHANE;bis(methylthio)methan;BIS(METHYLTHIO)METHANE;bis(methylthio)-methan
CBNumber
CB0675318
Molecular Formula
C3H8S2
Formula Weight
108.23
MOL File
1618-26-4.mol
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Bis(methylthio)methane Property

Melting point:
148 °C
Boiling point:
147 °C(lit.)
Density 
1.059 g/mL at 25 °C(lit.)
vapor pressure 
4.679hPa at 20℃
FEMA 
3878 | BIS-(METHYLTHIO)METHANE
refractive index 
n20/D 1.53(lit.)
Flash point:
111 °F
storage temp. 
Inert atmosphere,2-8°C
solubility 
IMMISCIBLE
form 
liquid
color 
APHA: ≤100
Specific Gravity
1.059
Odor
at 0.10 % in propylene glycol. garlic sulfurous green spicy mushroom
Odor Type
sulfurous
biological source
synthetic
Water Solubility 
IMMISCIBLE
Merck 
14,1256
JECFA Number
533
BRN 
1731143
LogP
2.31 at 20℃
CAS DataBase Reference
1618-26-4(CAS DataBase Reference)
NIST Chemistry Reference
2,4-Dithiapentane(1618-26-4)
EPA Substance Registry System
Methane, bis(methylthio)- (1618-26-4)
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Safety

Hazard Codes 
Xi
Risk Statements 
10-36/37/38
Safety Statements 
16-26-36/37/39
RIDADR 
UN 1993 3/PG 3
WGK Germany 
3
F 
13
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29309070
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P273Avoid release to the environment.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
W387800
Product name
Bis(methylthio)methane
Purity
≥99%, FG
Packaging
1 unit
Price
$53.48
Updated
2025/07/31
Sigma-Aldrich
Product number
W387800
Product name
Bis(methylthio)methane
Purity
≥99%, FG
Packaging
1 unit
Price
$53.48
Updated
2025/07/31
Sigma-Aldrich
Product number
W387800
Product name
Bis(methylthio)methane
Purity
≥99%, FG
Packaging
100g
Price
$117.8
Updated
2025/07/31
Sigma-Aldrich
Product number
W387800
Product name
Bis(methylthio)methane
Purity
≥99%, FG
Packaging
1kg
Price
$476.9
Updated
2025/07/31
Sigma-Aldrich
Product number
W387800
Product name
Bis(methylthio)methane
Purity
≥99%, FG
Packaging
2.5kg
Price
$957
Updated
2025/07/31
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Bis(methylthio)methane Chemical Properties,Usage,Production

Chemical Properties

CLEAR COLOURLESS TO PALE YELLOW LIQUID

Chemical Properties

bis-(Methylthio)methane has a mustard-like odor.

Occurrence

Reported found in Camembert and Gruyere cheeses, milk, fish oil, cooked and canned beef, shitake mushroom, truffle, prawn and lobster.

Uses

Bis(methylthio)methane is used in method for reducing odor in room in remodeling work by removing causative substances.

Definition

ChEBI: Bis(methylthio)methane is a dithioacetal.

General Description

The liquid structure of bis(methylthio)methane at room temperature was studied by the bonding and non-bonding interatomic potential functions (FMP-RMC) simulation.

Flammability and Explosibility

Not classified

Biological Activity

Odor at 0.1% PG', 'Taste at 0.10-0.30 ppm

Purification Methods

Work in an efficient fume cupboard as the substance may contain traces (or more) of methylmercaptan which has a very bad odour. Dissolve the mercaptal in Et2O, shake it with aqueous alkalis then dry it over anhydrous K2CO3, filter and distil it over K2CO3 under a stream of N2. If the odour is very strong, then allow all gas efluents to bubble through 5% aqueous NaOH solution which is then treated with dilute KMnO4 in order to oxidise MeSH to odourless products. UV: max 238 nm (log 2.73) [Fehnel & Carmack J Am Chem Soc 71 90 1949, Fehér & Vogelbruch Chem Ber 91 996 1958, B.hme & Marz Chem Ber 74 1672 1941]. Oxidation with aqueous KMnO4 yields bis-(methylsulfonyl)methane which has m 142-143o [Fiecchi et al. Tetrahedron Lett 1681 1967]. [Beilstein 1 IV 3088.]

Bis(methylthio)methane Preparation Products And Raw materials

Raw materials

Preparation Products

Methyl 2-(methylamino)benzoate
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View Lastest Price from Bis(methylthio)methane manufacturers

Shaanxi Dideu New Materials Co. Ltd
Product
Bis(methylthio)methane 1618-26-4
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98.0%
Supply Ability
10000KGS
Release date
2025-06-27
Hebei Chuanghai Biotechnology Co., Ltd
Product
Bis(methylthio)methane 1618-26-4
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-10-24
Hebei Zhuanglai Chemical Trading Co Ltd
Product
Bis(methylthio)methane 1618-26-4
Price
US $50.00/kg
Min. Order
1kg
Purity
99
Supply Ability
5000
Release date
2024-11-18

1618-26-4, Bis(methylthio)methaneRelated Search:

Dacthal ISOMETHIOZIN Dimethyl fumarate 4-(Trifluoromethylthio)phenol N,N-Dimethylformamide Dimethyl sulfoxide Dimethyl sulfate Dimethyl carbonate BIUREA Paraformaldehyde ETHANE Dimethyl ether Ethoxydimethylvinylsilane Chlorodimethylsilane Dimethoxymethane D-GLUCOSE DIETHYL MERCAPTAL 2-TRIMETHYLSILYL-1,3-DITHIANE Methylene dithiocyanate

  • FEMA 3878
  • FORMALDEHYDE DIMETHYL MERCAPTAL
  • DIMETHYLTHIOMETHANE
  • BIS(METHYLMERCAPTO)METHANE
  • BIS(METHYLTHIO)METHANE
  • 2,4-DITHIAPENTANE
  • Bis(methyL
  • thio)methane
  • METHYLENEBIS(METHYL SULFIDE)
  • FORMALDEHYDE DIMETHYLMERCAPTAN
  • Dimethylthiomethane, Formaldehyde dimethyl mercaptal
  • Bis(methylsulfanyl)methane
  • bis-(methylsulfanyl)-methane
  • bis(methylthio)methan
  • bis(methylthio)-methan
  • CH3SCH2SCH3
  • Methane, bis(methylthio)-
  • Thioformaldehyde dimethylthioacetal
  • BIS(METHYLTHIO)METHANE 99+%
  • Bis(methylthio)methane,Dimethylthiomethane, Formaldehyde dimethyl mercaptal
  • Bis(Methylthio)Methane, 99+% 25ML
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  • Formaldehyde dimethyl dithioacetal
  • Thioformaldehyde dimethyl acetal
  • Bis(methylthio)methane &gt
  • 2,4-DITHIAPENTANE /Bis(methylthio)methane 99%
  • Bis(methylthio)methane USP/EP/BP
  • truffle sulfide
  • factories direct supplier Bis(methylthio)methane CAS 1618-26-4
  • TIANFU-CHEM Bis(methylthio)methane
  • 4-Methoxyphenylacetone 122-84-9
  • Bis(methylthio)methane, ≥ 98.0%
  • Dimethyl sulfide methane
  • 1618-26-4
  • 9005-53-3
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