Products Categories
CAS No.: | 75-18-3 |
---|---|
Name: | Dimethyl sulfide |
Article Data: | 339 |
Molecular Structure: | |
Formula: | C2H6S |
Molecular Weight: | 62.1356 |
Synonyms: | Methane,thiobis- (9CI);Methyl sulfide (8CI);2-Thiapropane;DMS;Dimethyl monosulfide;Dimethyl sulphide;Dimethyl thioether;Methyl monosulfide;Thiobis(methane); |
EINECS: | 200-846-2 |
Density: | 0.822 g/cm3 |
Melting Point: | -98 °C(lit.) |
Boiling Point: | 29.5 °C at 760 mmHg |
Flash Point: | -34 °C |
Solubility: | 溶于乙醇和乙醚,不溶于水。 |
Appearance: | clear colorless liquid |
Hazard Symbols: | F, Xn |
Risk Codes: | 11-22-37/38-41-36 |
Safety: | 7-9-16-29-33-36/39-26 |
Transport Information: | UN 1164 3/PG 2 |
PSA: | 25.30000 |
LogP: | 0.97920 |
Conditions | Yield |
---|---|
With benzo[1,3,2]dioxaborole In benzene-d6 at 20℃; for 48h; | 100% |
With phenylsilane; dimanganese decacarbonyl In neat (no solvent) at 100℃; | 96% |
With sodium tetrahydroborate; iron(III) chloride In ethanol; water 1.) room temperature, 2 h, 2.) reflux, 5 - 10 min; | 94% |
2-isopropylimidazole
chloro(dimethylsulfide) gold(I)
A
dimethylsulfide
B
(2-isopropylimidazole)2AuCl
Conditions | Yield |
---|---|
In dichloromethane refluxed for 2 h; evapd. to dryness, stirred under Et2O for 24 h, filtered, washed with Et2O; elem. anal.; | A n/a B 100% |
Conditions | Yield |
---|---|
With antimonypentachloride; dimethyl sulfoxide In nitromethane; benzene for 2h; Heating; | A n/a B 98.7% |
4,4'-dimethoxybenzoin
A
dimethylsulfide
B
1,2-bis(4-methoxyphenyl)-1,2-ethanedione
Conditions | Yield |
---|---|
With antimonypentachloride; dimethyl sulfoxide In nitromethane at 40℃; for 1h; | A n/a B 98% |
potassium di-tert-butylphosphate
A
dimethylsulfide
B
Di-t-butyl prenyl phosphate
Conditions | Yield |
---|---|
With potassium carbonate In dichloromethane for 48h; Heating; | A n/a B 97% |
methylthiol
ethene
A
dimethylsulfide
B
Ethyl methyl sulfide
C
diethyl sulphide
D
ethanethiol
Conditions | Yield |
---|---|
With 2,2-dimethoxy-2-phenylacetophenone at 45℃; under 2250.23 - 6750.68 Torr; for 14.1h; UV-irradiation; | A n/a B 97% C n/a D n/a |
S,S-dimethylsulfodiimide
3,4,5-trimethoxy-benzaldehyde
A
dimethylsulfide
B
3,4,5-trimethoxybenzonitrile
Conditions | Yield |
---|---|
In acetonitrile for 15h; Heating; | A n/a B 95% |
In acetonitrile for 15h; Heating; |
Conditions | Yield |
---|---|
With hexamethyldisilathiane In acetonitrile for 1h; Ambient temperature; | A 95% B n/a |
A
dimethylsulfide
Conditions | Yield |
---|---|
In acetone byproducts: Cl(1-); stirred for 30 min; volume reduced, addn. of pentane, sepd., washed with pentane, dried in vac.; elem. anal.; | A n/a B 95% |
Molecular Structure of Dimethyl monosulfide (CAS NO.75-18-3):
IUPAC Name: methylsulfanylmethane
Molecular Formula: C2H6S
Molecular Weight: 62.13
EINECS: 200-846-2
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 25.3 Å2
Index of Refraction: 1.425
Molar Refractivity: 19.31 cm3
Molar Volume: 75.5 cm3
Surface Tension: 21.3 dyne/cm
Density: 0.822 g/cm3
Enthalpy of Vaporization: 27 kJ/mol
Boiling Point: 29.5 °C at 760 mmHg
Vapour Pressure: 647 mmHg at 25°C
Melting point: -98 °C(lit.)
FEMA: 2746
Flash point: -34 °F
InChI
InChI=1/C2H6S/c1-3-2/h1-2H3
Smiles
S(C)C
Stability: Stable. Incompatible with strong oxidizing agents. Highly flammable - note low boiling point, low flash point, and wide explosion limits. Mixtures with air are potentially explosive. Incompatible with strong oxidizing agents. Use in UK regulated by LPG Regulations 1978 in accordance with HSE guidance note CS17.
Product Categories: Organics; sulfide Flavor; Sulfides flavors
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mammal (species unspecified) | LD50 | unreported | 1950mg/kg (1950mg/kg) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 16(6), Pg. 46, 1972. | |
mouse | LC50 | inhalation | 31620ug/m3 (31.62mg/m3) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 16(6), Pg. 46, 1972. | |
mouse | LD50 | intraperitoneal | 8gm/kg (8000mg/kg) | International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine. Vol. 3, Pg. 41, 1961. | |
mouse | LD50 | oral | 3700mg/kg (3700mg/kg) | BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY) BEHAVIORAL: ANTIPSYCHOTIC | Food and Cosmetics Toxicology. Vol. 17, Pg. 365, 1979. |
rabbit | LD50 | skin | > 5gm/kg (5000mg/kg) | Food and Cosmetics Toxicology. Vol. 17, Pg. 365, 1979. | |
rat | LC50 | inhalation | 40250ppm (40250ppm) | LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" KIDNEY, URETER, AND BLADDER: URINE VOLUME INCREASED | Personal Communication from H.B. Lackey, Chemical Products Div., Crown Zellerbach, Camas, WA 98607, June 9, 1978Vol. 09JUN1978, |
rat | LD50 | oral | 3300mg/kg (3300mg/kg) | BEHAVIORAL: GENERAL ANESTHETIC BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY) BEHAVIORAL: IRRITABILITY | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 32(3), Pg. 3, 1967. |
Reported in EPA TSCA Inventory.
Poison by inhalation. Moderately toxic by ingestion. A skin and severe eye irritant. A very dangerous fire hazard when exposed to heat or flame. Explosive in the form of vapor when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, use CO2, dry chemical. When heated to decomposition it emits highly toxic fumes of SOx and may explode.
Hazard Codes: F,Xn
Risk Statements: 11-22-37/38-41-36
R11:Highly flammable.
R22:Harmful if swallowed.
R37/38:Irritating to respiratory system and skin.
R41:Risk of serious damage to the eyes.
R36:Irritating to eyes.
Safety Statements: 7-9-16-29-33-36/39-26
S7:Keep container tightly closed.
S9:Keep container in a well-ventilated place.
S16:Keep away from sources of ignition.
S29:Do not empty into drains.
S33:Take precautionary measures against static discharges.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: UN 1164 3/PG 2
WGK Germany: 1
F: 13
HazardClass: 3
PackingGroup: II
ACGIH TLV: (Proposed: 10 ppm)
DOT Classification: 3; Label: Flammable Liquid
Dimethyl monosulfide is also named as Dimethyl sulfide ; (Methylsulfanyl)methane ; 2-Thiopropane ; Dimethyl monosulfide ; Dimethyl sulphide ; Dimethyl thioether ; dimethylmonosulfide ; dimethylmonosulphide and so on. It's clear colorless liquid. Dimethyl monosulfide (CAS NO.75-18-3) is commonly used to produce DMSO and sometimes is used as the pesticide intermediates or solvent.