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161519

Sigma-Aldrich

偏亚硫酸氢钠

reagent grade, 97%

别名:

偏二亚硫酸钠, 焦亚硫酸钠

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500 G
$63.00
2.5 KG
$128.00

$63.00

国内现货，预计发货时间2025年4月09日详情

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500 G
$63.00
2.5 KG
$128.00

About This Item

线性分子式:
Na2S2O5
CAS号:
7681-57-4
分子量:
190.11
EC 号:
231-673-0
MDL编号:
MFCD00167602
UNSPSC代码:
12352302
PubChem化学物质编号:
329751131
NACRES:
NA.55

$63.00

国内现货，预计发货时间2025年4月09日详情

获取大包装报价

等级

reagent grade

方案

97%

表单

powder or crystals

pH值（酸碱度）

4.5 (20 °C, 50 g/L)

mp

>300 °C (lit.)

溶解性

water: soluble 650 g/L at 20 °C

SMILES字符串

[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O

InChI

1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2

InChI key

HRZFUMHJMZEROT-UHFFFAOYSA-L

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相关类别

一般描述

焦亚硫酸钠（MBS，二亚硫酸钠）是二硫（焦亚硫酸盐）酸的钠盐。也常作为防腐剂添加到各种食品和葡萄酒中。[1]

应用

偏亚硫酸钠可通过自由基聚合引发聚丁二烯交联。[2] 在各种研究中，可用于预防 6-羟基多巴胺 (6-OHDA) [3] 和 6-OHDA HBr [4] 储备液制备过程中的氧化（作为抗氧化剂）。

象形图

CorrosionExclamation mark
GHS05,GHS07

警示用语：

Danger

危险声明

H302,H318

危险分类

Acute Tox. 4 Oral - Eye Dam. 1

补充剂危害

EUH031

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCM8964
BCCM6073
BCCL3245
BCCK8035
BCCJ7770

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Laurie H L Sellings et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 23(15), 6295-6303 (2003-07-18)
Convergent evidence suggests that amphetamine (AMPH) exerts its rewarding and locomotor stimulating effects via release of dopamine in the nucleus accumbens. However, there is no consensus as to the relative contributions of core and medial shell subregions to these effects.
Johanne Louise Neiiendam et al.
Journal of neurochemistry, 91(4), 920-935 (2004-11-05)
The Neural Cell Adhesion Molecule (NCAM) plays a crucial role in development of the central nervous system regulating cell migration, differentiation and synaptogenesis. NCAM mediates cell-cell adhesion through homophilic NCAM binding, subsequently resulting in activation of the fibroblast growth factor
Zhiliang Cheng et al.
Langmuir : the ACS journal of surfaces and colloids, 24(15), 8169-8173 (2008-06-24)
The ability of chelated Gd to serve as an effective magnetic resonance (MR) contrast agent largely depends on fast exchange rates between the Gd-bound water molecules and the surrounding bulk water. Because water diffuses slowly across lipid bilayers, liposomes with
W Wright et al.
The American review of respiratory disease, 141(6), 1400-1404 (1990-06-01)
Sodium metabisulfite (MBS) is used as a preservative in food and wine and frequently triggers attacks of asthma. To determine the characteristics of responses to inhaled MBS, 30 asthmatic subjects and 16 nonasthmatic subjects inhaled MBS, in concentrations of 6.2
Ivana Mara da Costa Machado Matos Carvalho et al.
Chemosphere, 82(7), 1056-1061 (2010-11-09)
Sodium metabisulfite is used in marine shrimp harvesting to prevent the occurrence of black spots. Shrimps are soaked in a sodium metabisulfite solution in ice, which is disposed of in sewages that run into marine canals, creating an environmental hazard.
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  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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