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重要文件

N4126

Sigma-Aldrich

烟酸

≥98%

同義詞:

3-吡啶甲酸, 吡啶-3-羧酸, 尼亚生, 抗糙皮病因子, 维生素 B3

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About This Item

經驗公式(希爾表示法):
C6H5NO2
CAS號碼:
分子量::
123.11
Beilstein:
109591
EC號碼:
MDL號碼:
分類程式碼代碼:
12352106
PubChem物質ID:
NACRES:
NA.25
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生物源

synthetic (organic)

品質等級

化驗

≥98%

形狀

powder

顏色

white to off-white

mp

236-239 °C (lit.)

SMILES 字串

OC(=O)c1cccnc1

InChI

1S/C6H5NO2/c8-6(9)5-2-1-3-7-4-5/h1-4H,(H,8,9)

InChI 密鑰

PVNIIMVLHYAWGP-UHFFFAOYSA-N

基因資訊

human ... CYP1A2(1544)
rat ... Chrnb2(54239)

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一般說明

烟酸又被称为维生素B3或烟酸。它是一种水溶性维生素。烟酸可在体内合成,也可从饮食中获取。[1]

應用

烟酸已用于:
  • 用作MS维生素储备溶液的组分[2]
  • 检测大肠杆菌细菌培养物中的铁载体[3]
  • 用作果蝇成虫完整培养基的组分[4]

生化/生理作用

烟酸参与烟酰胺腺嘌呤二核苷酸(NAD+)生产,后者则被用于线粒体氧化磷酸化生产三磷酸腺嘌呤(ATP)。[1]它还会减少肝脏生产的极低密度脂蛋白(VLDL)和载脂蛋白B (apo-B)。[5]烟酸缺乏会导致糙皮病。[6]

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Eye Irrit. 2

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

379.4 °F - closed cup

閃點(°C)

193 °C - closed cup

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


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分析證明 (COA)

Lot/Batch Number

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文章

Lipoproteins package cholesterol for transport in plasma, essential for lipid transport and cellular function in the body.

脂蛋白包裝膽固醇以便在血漿中運輸,對於人體中的脂質運輸和細胞功能是不可或缺的。

Questions

1–3 of 3 Questions  
  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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  3. Bonjour, s'il vous plaît dites-moi, ce médicament est-il en ampoules ?

    1 answer
    1. This product is not suitable for human use, it is intended for research use only. This material is in powder form and is packaged in High Density Polyethylene (HDPE) plastic bottles.

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