跳转至内容
Merck
所有图片(4)

主要文件

查看所有文档

112704

Sigma-Aldrich

甲醛-次硫酸氢钠加合物

95%

别名:

甲醛次硫酸氢钠

登录查看公司和协议定价

选择尺寸

5 G
$66.30
100 G
$98.00
2 KG
$166.00
5 KG
$370.00

$66.30

预计发货时间2025年4月21日详情

获取大包装报价
所有图片(4)

选择尺寸

变更视图
5 G
$66.30
100 G
$98.00
2 KG
$166.00
5 KG
$370.00

About This Item

线性分子式:
HOCH2SO3Na
CAS号:
870-72-4
分子量:
134.09
EC 号:
212-800-9
MDL编号:
MFCD00044664
UNSPSC代码:
12352100
PubChem化学物质编号:
24847109
NACRES:
NA.22

$66.30

预计发货时间2025年4月21日详情

获取大包装报价

方案

95%

表单

solid

mp

200 °C (dec.) (lit.)

官能团

hydroxyl
sulfonic acid

SMILES字符串

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

InChI

1S/CH4O4S.Na/c2-1-6(3,4)5;/h2H,1H2,(H,3,4,5);/q;+1/p-1

InChI key

UOULCEYHQNCFFH-UHFFFAOYSA-M

相关类别

一般描述

在 3-羟基丙醛 (3 hPa) 的合成中使用甲醛-亚硫酸氢钠加合物作为标准品 [1]。它可以通过 HPLC 与荧光检测在选定的食品中进行含量测定 [2]。

应用


  • 柠檬酸三乙酯作为无毒溶剂在医药领域的应用：探索了柠檬酸三乙酯在原位形成PLGA植入物中的应用，重点是与传统选择相比，它是一种毒性更低的溶剂。应用证明了柠檬酸三乙酯在开发更安全的药物制剂中的重要性（Ramos et al., 2024）。

  • 柠檬酸三乙酯在生物可降解聚合物研究中的应用：研究了柠檬酸三乙酯对聚乳酸纤维熔融纺丝和结构特性的影响。强调了其作为增塑剂的有效性，提高了可生物降解聚合物的加工性和性能，对于药物控释系统具有重要意义（Gzyra-Jagieła et al., 2024）。

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCX4806
MKCW8729
MKCV7564
MKCW3034
MKCT0806

没有发现合适的版本？

如果您需要特殊版本，可通过批号或批次号查找具体证书。

搜索COA

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

其他客户在看

Slide 1 of 3

1 of 3

3-羟基-1-丙磺酸 钠盐 technical grade, 80%

Sigma-Aldrich

389803

3-羟基-1-丙磺酸 钠盐

亚硫酸钠 analytical standard

Supelco

08981

亚硫酸钠

亚硫酸钠 ≥98%

Sigma-Aldrich

S0505

亚硫酸钠

Stephen Wai Cheung Chung et al.
Journal of AOAC International, 91(1), 98-102 (2008-04-02)
A rapid and accurate method for measuring low part-per-million levels of free and reversibly-bound sulfites in selected foods by using high-performance liquid chromatography (HPLC) with fluorometric detection was developed. Sulfites were extracted with sodium tetrachloromercurate solution and determined by HPLC-fluorescence
Yuegang Zuo
Chemosphere, 51(3), 175-179 (2003-02-20)
The determination of the photo-production rate of hydroxyl radical (OH) in atmospheric liquids is of fundamental importance to an understanding of atmospheric aquatic chemistry. Recently, several studies have been performed to examine the photo-chemical formation rate of OH in cloud
R Aris et al.
The American review of respiratory disease, 141(3), 546-551 (1990-03-01)
Hydroxymethanesulfonate (HMSA), the bisulfite (HSO3-) adduct of formaldehyde (CH2O), is a common constituent of California acid fogs. HMSA, most stable in a fog pH range of 3 to 5, dissociates at 6.6, the pH of the fluid lining human airways.
J Kawai et al.
Astrobiology, 19(4), 506-516 (2019-01-08)
While formaldehyde (HCHO) was likely generated in Earth's prebiotic atmosphere by ultraviolet light, electrical discharge, and/or volcano-created lightning, HCHO could not have accumulated in substantial amounts in prebiotic environments, including those needed for prebiotic processes that generate nucleosidic carbohydrates. HCHO
C R Warner et al.
Food additives and contaminants, 7(5), 575-581 (1990-09-01)
The reaction of sulphite with formaldehyde to form hydroxymethylsulphonate (HMS), which is very stable under the controlled conditions of this assay, was used as the first step in an analytical procedure to determine foodborne sulphite. The effect of mobile-phase pH
查看所有相关文献

Questions

1–2 of 2 Questions  

  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/449/386/product-dating-information-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

      Helpful?

Reviews

No rating value

Active Filters

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系客户支持