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Merck

PHR1661

Supelco

异戊烷

Pharmaceutical Secondary Standard; Certified Reference Material

别名:

2-甲基丁烷, 异戊烷

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About This Item

线性分子式:
CH3CH2CH(CH3)2
CAS号:
分子量:
72.15
Beilstein:
1730723
MDL编号:
UNSPSC代码:
41116107
PubChem化学物质编号:
NACRES:
NA.24
价格与库存信息目前不能提供

等级

certified reference material
pharmaceutical secondary standard

质量水平

蒸汽密度

2.6 (vs air)

蒸汽压

11.17 psi ( 20 °C)

表单

liquid

CofA

current certificate can be downloaded

自燃温度

788 °F

expl. lim.

8.3 %

包装

ampule of 2 mL

技术

HPLC: suitable
gas chromatography (GC): suitable

折射率

n20/D 1.354 (lit.)

沸点

30 °C (lit.)

密度

0.62 g/mL at 25 °C (lit.)

应用

pharmaceutical (small molecule)

储存温度

-10 to -25°C

SMILES字符串

CCC(C)C

InChI

1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3

InChI key

QWTDNUCVQCZILF-UHFFFAOYSA-N

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一般描述

用于质量控制的制药二级标准品,为制药实验室和制造商制备内部工作标准品提供了一种方便、高性价比的替代方案。′这些二级标准品可追溯至USP、EP和BP一级标准品。

应用

这些二级标准品是合格的认证标准物质(CRM)。它们适用于多种分析应用,包括但不限于药物释放测试、药物的定性和定量分析方法开发、食品和饮料质量控制检测以及其他校准需求。

分析说明

这是异戊烷的正丁醇溶液(~13%w/w)

其他说明

该认证标准物质(CRM)根据ISO 17034ISO/IEC 17025进行生产和认证。有关此CRM使用的所有信息均可在检验报告上找到。

附注

想要查看本品的检验报告示例,请在下框中输入LRAC3677。这只是一个示例证书,可能与您收到的批次不符。

警示用语:

Danger

危险分类

Acute Tox. 4 Oral - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

靶器官

Central nervous system, Respiratory system

储存分类代码

3 - Flammable liquids

WGK

WGK 2

闪点(°F)

95.0 °F - closed cup

闪点(°C)

35 °C - closed cup


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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A shared neuropathological hallmark in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) is nuclear clearance and cytoplasmic aggregation of TARDBP/TDP-43 (TAR DNA binding protein). We previously showed that the ability of TARDBP to repress nonconserved cryptic exons was impaired
Eva Pigna et al.
EBioMedicine, 40, 717-732 (2019-02-05)
Histone deacetylase 4 (HDAC4) has been proposed as a target for Amyotrophic Lateral Sclerosis (ALS) because it mediates nerve-skeletal muscle interaction and since its expression in skeletal muscle correlates with the severity of the disease. However, our recent studies on

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?

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