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Merck

PHR1114

Supelco

ステアリン酸

Pharmaceutical Secondary Standard; Certified Reference Material

別名:

ステアリン酸, 1-ヘプタデカンカルボン酸, C18:0, NSC 25956, NSC 261168, オクタデカン酸, ステアロファン酸

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1 G
¥18,400

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1 G
¥18,400

About This Item

化学式:
CH3(CH2)16COOH
CAS番号:
分子量:
284.48
Beilstein:
608585
EC Number:
MDL番号:
UNSPSCコード:
41116107
PubChem Substance ID:
NACRES:
NA.24

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グレード

certified reference material
pharmaceutical secondary standard

品質水準

認証

traceable to Ph. Eur. S1340000
traceable to USP 1621008

蒸気圧

1 mmHg ( 173.7 °C)

APIファミリー

stearic acid

CofA

current certificate can be downloaded

テクニック

HPLC: suitable
gas chromatography (GC): suitable

bp

361 °C (lit.)

mp

67-72 °C (lit.)

アプリケーション

cleaning products
cosmetics
food and beverages
personal care
pharmaceutical (small molecule)

フォーマット

neat

保管温度

2-30°C

SMILES記法

CCCCCCCCCCCCCCCCCC(O)=O

InChI

1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)

InChI Key

QIQXTHQIDYTFRH-UHFFFAOYSA-N

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詳細

Stearic acid is a saturated fatty acid, which is a long aliphatic chain containing a carboxyl group at one end and a methyl group at the other. Pharmaceutically, it is used as a lubricant in tablet and capsule formulations and as an emulsifying and solubilizing agent in topical formulations.[1]
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

アプリケーション

Stearic acid may be used as a pharmaceutical reference standard for the determination of the analyte in raw material, food and pharmaceutical formulations by gas chromatography.[2][3][4]
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

アナリシスノート

このような2次標準は、USP、EP(PhEur)、BPの1次標準にマルチトレーサビリティを提供します。

その他情報

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

脚注

To see an example of a Certificate of Analysis for this material enter LRAA7125 in the slot below. This is an example certificate only and may not be the lot that you receive.

おすすめ製品

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

保管分類コード

11 - Combustible Solids

WGK

nwg

引火点(°F)

Not applicable

引火点(℃)

Not applicable


適用法令

試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。

Jan Code

PHR1114-1G:
PHR1114-1G-PW:


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試験成績書(COA)

Lot/Batch Number

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以前この製品を購入いただいたことがある場合

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Qualitative and quantitative determination of the fatty acids by gas-liquid chromatography
James AT
Methods of Biochemical Analysis, 1-59 (1960)
Handbook of Pharmaceutical Excipients, 6th Edition
Handbook of Pharmaceutical Excipients 6th edition Pharmaceutical Press, 697-699 (2009)
Stearic acid
Pharmacopeia, US
United States Pharmacopeia/National Formulary, 29(2), 6068-6068 (2018)
Novel method for quantification of individual free fatty acids in milk using an in-solution derivatisation approach and gas chromatography-mass spectrometry
Amer B, et al.
International dairy journal, 32(2), 199-203 (2013)
Ulla Hoppu et al.
Journal of pediatric gastroenterology and nutrition, 41(3), 335-338 (2005-09-01)
Breast milk fatty acids may have immunomodulatory properties related to the development of atopic disease. The aim of this study was to assess the impact of the breast milk fatty acid composition on the development of atopic dermatitis (AD) in

資料

Ascentis® C18 column facilitates LC-UV/MS analysis of extractables from single-use systems, ensuring reliable identification and quantification.

質問

1–2/2 質問  
  1. How can I determine the shelf life / expiration / retest date of this product?

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

    1 回答
    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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