Dimethyl disulfide CAS#624-92-0
High Purity (≥99%) ： Ensures consistent quality for industrial applications.
Excellent Solubility ： Miscible with most organic solvents (15–25°C), facilitating versatile use.
Thermal Stability ： Remains stable up to 300°C, suitable for high-temperature processes.
Low Freezing Point (-84.7°C) ： Maintains liquid form under standard conditions, enhancing handling ease.
Product Description of Dimethyl disulfide CAS#624-92-0
Dimethyl disulfide (CAS#624-92-0) is an industrial-grade chemical with a purity of ≥99%. It appears as a flammable yellow liquid with a characteristic sulfur odor. Key physical properties include a melting point of -84.7°C, a boiling point of 109.6°C, and a vapor pressure of 3.0×10⁶ mPa at 20°C. The compound exhibits a log Kow (P) value of 1.91 and a Henry’s law constant of 105PChemicalbooka·m³/mol (calculated). Its relative density is 1.062 at 20°C.
In terms of solubility, dimethyl disulfide dissolves in water at 2.7 g/L (20°C) and is fully miscible with most organic solvents within the 15–25°C range. Stability tests indicate that it remains stable when heated to 300°C but becomes unstable in the presence of oxidizing agents. Additionally, its freezing point is 16°C.
Parameters
Melting point | -85 °C |
Boiling point | 109 °C(lit.) |
density | 1.0625 |
vapor density | 3.24 (vs air) |
vapor pressure | 22 mm Hg ( 20 °C) |
FEMA | 3536 | DIMETHYL DISULFIDE |
refractive index | n20/D 1.525(lit.) |
Fp | 76 °F |
storage temp. | Flammables area |
solubility | 2.7g/l |
form | Liquid |
Specific Gravity | 1.0647 (20/4℃) |
color | Clear yellow |
Odor | at 0.10 % in propylene glycol. sulfurous vegetable cabbage onion |
Odor Type | sulfurous |
biological source | rabbit |
Odor Threshold | 0.0022ppm |
explosive limit | 1.1-16.1%(V) |
Water Solubility | <0.1 g/100 mL at 20 ºC |
JECFA Number | 564 |
BRN | 1730824 |
Dielectric constant | 9.7699999999999996 |
Exposure limits | ACGIH: TWA 0.5 ppm (Skin) |
Stability: | Stable. Incompatible with strong bases, strong oxidizing agents, strong reducing agents. Flammable. |
InChIKey | WQOXQRCZOLPYPM-UHFFFAOYSA-N |
LogP | 1.91 at 20℃ |
CAS DataBase Reference | 624-92-0(CAS DataBase Reference) |
NIST Chemistry Reference | Disulfide, dimethyl(624-92-0) |
EPA Substance Registry System | Methyl disulfide (624-92-0) |
Safety Information
Hazard Codes | F,Xn,N,T+ |
Risk Statements | 11-20/22-36-51/53-36/37/38-26-22-36/37 |
Safety Statements | 26-61-45-38-36/37/39-28A-16-60-57-39-29 |
RIDADR | UN 2381 3/PG 2 |
WGK Germany | 2 |
RTECS | JO1927500 |
Autoignition Temperature | 304 °C |
TSCA | Yes |
HazardClass | 3 |
PackingGroup | II |
HS Code | 29309070 |
Hazardous Substances Data | 624-92-0(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 290 - 500 mg/kg |
Product Application of Dimethyl disulfide CAS#624-92-0
Dimethyl disulfide (CAS#624-92-0) serves as a versatile intermediate and food additive, widely utilized in flavoring applications such as onion, garlic, cheese, meats, soups, savory flavors, and fruit flavors. In oil refineries, it functions as a sulfiding agent for catalytic processes. Additionally, it acts as an alfa substitute for 2-methylfuran-acrolein in the production of foodstuffs.
The compound is also involved in synthesizing 4-(methylthio)phenol, a key precursor in chemical manufacturing. Moreover, it replaces methyl mercaptan as a safer alternative in jet fuel additives. Beyond industrial uses, dimethyl disulfide is employed as an artificial flavoring agent and a corrosion inhibitor in various formulations. In agriculture, it serves as an effective soil fumigant for pest control and crop protection.
