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471569

Sigma-Aldrich

二甲基二硫化物

≥99.0%

别名:

DMDS, 甲基二硫醚

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About This Item

线性分子式:
CH3SSCH3
CAS号:
624-92-0
分子量:
94.20
Beilstein:
1730824
EC號碼:
210-871-0
MDL號碼:
MFCD00008561
分類程式碼代碼:
12352100
PubChem物質ID:
24870743
NACRES:
NA.22

蒸汽密度

3.24 (vs air)

品質等級

100

蒸汽壓力

22 mmHg ( 20 °C)

化驗

≥99.0%

自燃溫度

>572 °F

expl. lim.

16 %

折射率

n20/D 1.525 (lit.)

bp

109 °C (lit.)

mp

−85 °C (lit.)

密度

1.046 g/mL at 25 °C (lit.)

官能基

disulfide

SMILES 字串

CSSC

InChI

1S/C2H6S2/c1-3-4-2/h1-2H3

InChI 密鑰

WQOXQRCZOLPYPM-UHFFFAOYSA-N

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相关类别

一般說明

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。

應用

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。

法律資訊

Arkema Inc. 产品

訊號詞

Danger

危險分類

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

標靶器官

Central nervous system, Upper respiratory tract

儲存類別代碼

3 - Flammable liquids

水污染物質分類（WGK）

WGK 3

閃點（°F）

59.0 °F - closed cup

閃點（°C）

15 °C - closed cup

個人防護裝備

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBP1385
SHBN2198
SHBM2627
STBJ6436
SHBJ5832

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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)
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
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
Adsorption state of dimethyl disulfide on Au?111?: Evidence for adsorption
as thiolate at the bridge site
Hayashi T, et al.
J. Chem. Phys. , 114(17), 7615-7621 (2001)
Gabrielle A Nevitt
Integrative and comparative biology, 51(5), 819-825 (2011-09-02)
Information transfer influences food-web dynamics in the marine environment, but infochemicals involved in these processes are only beginning to be understood. Dimethylsulfoniopropionate (DMSP) is produced by phytoplankton and other marine algae, and has been studied primarily in the context of
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实验方案

GC Analysis of Volatiles in Milk on Supel-Q™ PLOT after SPME using a 75 µm PDMS/Carboxen Fiber

Separation of 4-Methyl-2-pentanone; Dimethyl disulfide; Hexanal; 3-Methylpentane; Acetone

GC Analysis of a 7-Component Sulfur Gases Mix on Supel-Q™ PLOT after SPME using 75 μm Carboxen/PDMS Fiber

Separation of Sulfur dioxide; Hydrogen sulfide; Carbonyl sulfide; Methanethiol; Ethanethiol; Dimethyl disulfide; Carbon disulfide

GC Analysis of Pyrazines in Peanut Butter

Separation of 2-Ethyl-3-methylpyrazine; 1-Methylpyrrole; 2,3-Dimethylpyrazine; 2,5-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Diethylpyrazine; 2-Methylpyrazine; Carbon disulfide; Dimethyl disulfide; 2,6-Dimethylpyrazine

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