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Merck

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41640

二甲基亚砜

puriss. p.a., ACS reagent, ≥99.9% (GC)

别名:

DMSO, 甲基亚砜

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100 mL
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$198.00
500 mL

即日发货发货地Sigma-Aldrich Pte. Ltd.

$347.00
1 L

即日发货发货地Sigma-Aldrich Pte. Ltd.

$485.00

关于此项目

线性分子式:
(CH3)2SO
化学文摘社编号:
分子量:
78.13
UNSPSC Code:
12191502
NACRES:
NA.21
PubChem Substance ID:
EC Number:
200-664-3
Beilstein/REAXYS Number:
506008
MDL number:
Assay:
≥99.9% (GC)
Technique(s):
GC/GC: suitable
Bp:
189 °C (lit.)
Vapor pressure:
0.42 mmHg ( 20 °C)

$198.00


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Quality Segment

vapor density

2.7 (vs air)

vapor pressure

0.42 mmHg ( 20 °C)

grade

ACS reagent, puriss. p.a.

assay

≥99.9% (GC)

form

liquid

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

technique(s)

GC/GC: suitable

impurities

≤0.001% free acid (as CH3COOH), ≤0.1% water

evapn. residue

≤0.005%

refractive index

n20/D 1.479

bp

189 °C (lit.)

mp

16-19 °C (lit.), 18-20 °C

density

1.10 g/mL (lit.)

cation traces

Al: ≤0.5 mg/kg, Ba: ≤0.1 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.05 mg/kg, Co: ≤0.02 mg/kg, Cr: ≤0.02 mg/kg, Cu: ≤0.02 mg/kg, Fe: ≤0.5 mg/kg, K: ≤0.5 mg/kg, Li: ≤0.1 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.02 mg/kg, Mo: ≤0.1 mg/kg, Na: ≤1 mg/kg, Ni: ≤0.5 mg/kg, Pb: ≤0.1 mg/kg, Sr: ≤0.1 mg/kg, Zn: ≤0.1 mg/kg

SMILES string

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

General description

二甲基亚砜(DMSO)是极性溶剂。[1]由亲电子试剂(草酰氯)活化的 DMSO,已用于氧化各种醇(伯、仲、烯丙基、苄基、受阻和双环)。形成羰基化合物作为反应产物。由于具有较高的稳定性,已被推荐为甲基纤维素溶剂在茚三酮反应中的替代溶剂。[2]

Application


  • 通过与1,6-二异氰酸根合己烷反应来改性明胶。:这项研究的重点是使用化学试剂修饰生物聚合物,这在使用DMSO作为反应溶剂的情况下可能相关(Bertoldo等人,2007年)。

  • 从桦木和山毛榉中分离的O-乙酰基-(4-O-甲基葡糖醛酸)木聚糖的表征。:这项研究表征了特定的木材衍生木聚糖,可能增强了对溶解在DMSO中进行分析研究的此类生物聚合物的理解(Teleman等人,2002年)。

Other Notes

用作合成中的试剂
有关二甲基亚砜混溶性的信息,请访问以下链接:
二甲基亚砜混溶性/不混溶性表

Disclaimer

在室温下容易过冷并缓慢重融。 固化产品可以通过加热至室温来重新液化,而不会损害产品。

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此商品
47230134943D5879
technique(s)

GC/GC: suitable

technique(s)

-

technique(s)

-

technique(s)

immunoblotting: suitable

grade

ACS reagent, puriss. p.a.

grade

ACS reagent

grade

-

grade

-

Quality Level

300

Quality Level

200

Quality Level

100

Quality Level

200

assay

≥99.9% (GC)

assay

≥99.9%

assay

≥99.9% (GC)

assay

≥99.5%

form

liquid

form

liquid

form

liquid

form

liquid

vapor density

2.7 (vs air)

vapor density

2.7 (vs air)

vapor density

2.7 (vs air)

vapor density

2.7 (vs air)


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存储类别

10 - Combustible liquids

wgk

WGK 1

flash_point_f

188.6 °F - closed cup

flash_point_c

87 °C - closed cup



历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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