471569
二甲基二硫化物
≥99.0%
别名:
DMDS, 甲基二硫醚
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线性分子式:
CH3SSCH3
化学文摘社编号:
分子量:
94.20
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
210-871-0
Beilstein/REAXYS Number:
1730824
MDL number:
产品名称
二甲基二硫化物, ≥99.0%
InChI key
WQOXQRCZOLPYPM-UHFFFAOYSA-N
InChI
1S/C2H6S2/c1-3-4-2/h1-2H3
SMILES string
CSSC
vapor density
3.24 (vs air)
vapor pressure
22 mmHg ( 20 °C)
assay
≥99.0%
autoignition temp.
>572 °F
expl. lim.
16 %
refractive index
n20/D 1.525 (lit.)
bp
109 °C (lit.)
mp
−85 °C (lit.)
density
1.046 g/mL at 25 °C (lit.)
functional group
disulfide
Quality Level
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Application
二甲基二硫 (DMDS) 可用于烯烃的衍生化，以 MS 法测定双键的位置。也可用于结合 GC-MS 分析确定 嗜冷弯曲杆菌 中单不饱和脂肪酸的双键位置。
General description
二甲基二硫 (DMDS) 是一种有机二烷基二硫化物。是我国典型城市生活垃圾填埋场工作面发现的有臭味化合物之一。DMDS 与单不饱和醋酸盐通过碳-碳双键加成形成加合物。这些加合物有助于确定长链单不饱和醋酸酯中双键的位置。用密度泛函理论 (DFT) 和高分辨电子能量损失谱 (HREELS) 研究了 DMDS 在 Au (111) 表面的吸附。
Legal Information
Arkema Inc. 产品
wgk
WGK 3
signalword
Danger
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Sens. 1 - STOT SE 1 Inhalation - STOT SE 3
target_organs
Central nervous system, Upper respiratory tract
存储类别
3 - Flammable liquids
flash_point_f
59.0 °F - closed cup
flash_point_c
15 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
新产品
此项目有
Lu Wenjing et al.
Waste management (New York, N.Y.), 42, 74-81 (2015-05-23)
Temporal variation (seasonal and daily) of odor emission on the working face of a large sanitary landfill in China was characterized through a 2 yearlong case study. Odor pollution was most serious in spring and autumn, while lower odor concentrations
Determination of double bond position in mono-unsaturated acetates by mass spectrometry of dimethyl disulfide adducts.
Buser HR, et al.
Analytical Chemistry, 55(6), 818-822 (1983)
Adsorption state of dimethyl disulfide on Au?111?: Evidence for adsorption
as thiolate at the bridge site
as thiolate at the bridge site
Hayashi T, et al.
J. Chem. Phys. , 114(17), 7615-7621 (2001)
C W Moss et al.
Journal of clinical microbiology, 27(7), 1467-1470 (1989-07-01)
Location of the double-bond position of monounsaturated fatty acids in Campylobacter cryaerophila was accomplished with combined gas chromatography-mass spectrometry analysis of dimethyl disulfide (DMDS) derivatives. The monoenoic fatty acids from whole bacterial cells were converted to methyl esters and then
J Greenman et al.
Journal of dental research, 83(1), 81-85 (2003-12-24)
The 0-5 organoleptic scale is used widely in breath research and in trials to measure the efficacy of anti-odor agents. However, the precise relationship between odor scores and gas concentrations of target odorants is unknown. The purpose of this study
实验方案
Separation of various pyrazines and sulfur compounds including carbon disulfide and dimethyl disulfide.
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