| Identification | More | [Name]
Bis(methylthio)methane | [CAS]
1618-26-4 | [Synonyms]
2,4-DITHIAPENTANE
BIS(METHYLMERCAPTO)METHANE
BIS(METHYLTHIO)METHANE
DIMETHYLTHIOMETHANE
FEMA 3878
FORMALDEHYDE DIMETHYL MERCAPTAL
METHYLENEBIS(METHYL SULFIDE)
Bis(methylsulfanyl)methane
bis-(methylsulfanyl)-methane
bis(methylthio)methan
bis(methylthio)-methan
CH3SCH2SCH3
Methane, bis(methylthio)-
Thioformaldehyde dimethylthioacetal
BIS(METHYLTHIO)METHANE 99+%
FORMALDEHYDE DIMETHYLMERCAPTAN
Dimethylthiomethane, Formaldehyde dimethyl mercaptal
Formaldehyde dimethyl dithioacetal
Thioformaldehyde dimethyl acetal | [EINECS(EC#)]
216-577-9 | [Molecular Formula]
C3H8S2 | [MDL Number]
MFCD00008564 | [Molecular Weight]
108.23 | [MOL File]
1618-26-4.mol |
| Chemical Properties | Back Directory | [Appearance]
CLEAR COLOURLESS TO PALE YELLOW LIQUID | [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 | [refractive index ]
n20/D 1.53(lit.)
| [Fp ]
111 °F
| [storage temp. ]
Flammables area | [solubility ]
IMMISCIBLE | [form ]
neat | [color ]
APHA: ≤100 | [Specific Gravity]
1.059 | [Odor]
at 0.10 % in propylene glycol. garlic sulfurous green spicy mushroom | [Odor Type]
sulfurous | [Water Solubility ]
IMMISCIBLE | [JECFA Number]
533 | [Merck ]
14,1256 | [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]
1618-26-4(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R10:Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . | [RIDADR ]
UN 1993 3/PG 3
| [WGK Germany ]
3
| [F ]
13 | [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
29309070 |
| Hazard Information | Back Directory | [Chemical Properties]
bis-(Methylthio)methane has a mustard-like odor. | [Chemical Properties]
CLEAR COLOURLESS TO PALE YELLOW LIQUID | [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]
Notclassified | [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.] |
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