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Merck

PHR1095

Supelco

咖啡因

Pharmaceutical Secondary Standard; Certified Reference Material

别名:

1,3,7-三甲基黄嘌呤

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1 G
$152.00

$152.00


预计发货时间2025年1月27日详情


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1 G
$152.00

About This Item

经验公式(希尔记法):
C8H10N4O2
CAS号:
分子量:
194.19
Beilstein:
17705
EC號碼:
MDL號碼:
分類程式碼代碼:
12352210
PubChem物質ID:
NACRES:
NA.24

$152.00


预计发货时间2025年1月27日详情


获取大包装报价

等級

certified reference material
pharmaceutical secondary standard

品質等級

agency

traceable to USP 1086006

API 家族

caffeine

CofA

current certificate can be downloaded

技術

HPLC: suitable
gas chromatography (GC): suitable

mp

~Approximately 237 °C
234-236.5 °C (lit.)

應用

pharmaceutical (small molecule)

形式

neat

儲存溫度

2-30°C

SMILES 字串

CN1C(=O)N(C)c2ncn(C)c2C1=O

InChI

1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3

InChI 密鑰

RYYVLZVUVIJVGH-UHFFFAOYSA-N

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一般說明

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.
Caffeine is mainly used as a diuretic and as a stimulant to central nervous system, heart rate, and respiration.[1]

應用

Caffeine may be used as a reference standard for the determination of the analyte in pharmaceutical formulations by high-performance liquid chromatography[1] and spectrophotometry.[2]
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.

分析報告

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

其他說明

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.

腳註

To see an example of a Certificate of Analysis for this material enter LRAC3327 in the slot below. This is an example certificate only and may not be the lot that you receive.

推薦產品

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.

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Acute Tox. 4 Oral

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1


分析证书(COA)

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Simultaneous spectrophotometric determination of paracetamol and caffeine in tablet formulation.
Vichare V, et al.
International Journal of PharmTech Research, 2(4), 2512-2516 (2010)
Development and validation of a simple RP-HPLC method for determination of caffeine in pharmaceutical dosage forms.
Chowdhury SR, et al.
Asian Journal of Pharmaceutical Analysis, 2(1), 1-4 (2012)
Nicolas Bousette et al.
Journal of cellular physiology, 229(3), 374-383 (2013-09-17)
Calnexin (CNX) is an endoplasmic reticulum (ER) quality control chaperone that has been implicated in ER stress. ER stress is a prominent pathological feature of various pathologic conditions, including cardiovascular diseases. However, the role of CNX and ER stress has
Louise A Horrigan et al.
Pharmacology & therapeutics, 111(3), 877-892 (2006-03-17)
Caffeine is a member of the methylxanthine family of drugs, and is the most widely consumed behaviourally active substance in the western world. This article is focused on the impact of caffeine on immune function. In this regard, a number
Jonathan M Hodgson et al.
The American journal of clinical nutrition, 97(5), 943-950 (2013-04-05)
Measures of blood pressure variation have been associated with cardiovascular disease and related outcomes. The regular consumption of black tea can lower blood pressure, but its effects on blood pressure variation have yet to be investigated. We aimed to assess

相关内容

Separation of Acetaminophen, meets USP testing specifications, 98.0-102.0%, powder; Caffeine, meets USP testing specifications, anhydrous; Benzoic acid, meets USP testing specifications; Aspirin, meets USP testing specifications

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

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  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

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