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PHR1963

(+)-Catechin

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(e):

(+)-Cyanidanol, D-Catechin

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Größe/SKUVerfügbarkeitPreis
50 mg
Warenkorb auf Verfügbarkeit prüfen
€ 316,00

Über diesen Artikel

Empirische Formel (Hill-System):
C15H14O6
CAS-Nummer:
Molekulargewicht:
290.27
UNSPSC Code:
41116107
NACRES:
NA.24
MDL number:

€ 316,00


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Quality Segment

grade

certified reference material, pharmaceutical secondary standard

agency

traceable to USP 1096790

API family

catechins

CofA

current certificate can be downloaded

packaging

pkg of 50 mg

application(s)

pharmaceutical

format

neat

storage temp.

2-8°C

SMILES string

O[C@H]1Cc2c(O)cc(O)cc2O[C@@H]1c3ccc(O)c(O)c3

InChI

1S/C15H14O6/c16-8-4-11(18)9-6-13(20)15(21-14(9)5-8)7-1-2-10(17)12(19)3-7/h1-5,13,15-20H,6H2/t13-,15+/m0/s1

InChI key

PFTAWBLQPZVEMU-DZGCQCFKSA-N

General description

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.

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.

(+)-Catechin is a flavan-3-ol, that belongs to the family of polyphenolic flavonoids, called catechins. Found in green tea, it shows many health benefits, such as anti-oxidant, anti-inflammatory, anti-proliferative, and anti-platelet activity.
This compound can be found as a component in plants of the genus: cinnamomum, crataegus, eucalyptus, hypericum, primula

Application

This pharmaceutical secondary standard can also be used as follows:

  • Development of an ultra-high performance liquid chromatography-triple-quadrupole tandem mass spectrometry (UHPLC-MS-MS) method for the simultaneous determination of eight catechins and four theaflavins in three types of tea samples
  • Separation and estimation of six tea catechins and caffeine by an UHPLC method coupled to a UV detector from green tea samples
  • Simultaneous analysis of five naturally occurring catechins by an isocratic HPLC method
  • Infrared-assisted extraction (IRAE) followed by HPLC separation and quantification of catechin, epicatechin, and procyanidin B2 in grape seed samples
  • Analysis of caffeine and catechins from green tea leaves by pressurized liquid extraction (PLE) using ethyl lactate, water, and ethyl lactate + water mixtures

Analysis Note

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

Other Notes

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.
To see an example of a Certificate of Analysis for this material enter LRAC2624 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.

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Dieser Artikel
1096790C069222110
description

Pharmaceutical Secondary Standard; Certified Reference Material

description

United States Pharmacopeia (USP) Reference Standard

description

≥98% (HPLC), from green tea

description

≥96.0% (sum of enantiomers, HPLC)

application(s)

pharmaceutical

application(s)

pharmaceutical (small molecule)

application(s)

metabolomics
vitamins, nutraceuticals, and natural products

application(s)

-

format

neat

format

neat

format

-

format

-

Quality Level

300

Quality Level

-

Quality Level

200

Quality Level

-

grade

certified reference material, pharmaceutical secondary standard

grade

pharmaceutical primary standard

grade

-

grade

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

packaging

pkg of 50 mg

packaging

-

packaging

-

packaging

-


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pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Lagerklasse

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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Questions

1–3 of 3 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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. Is it soluble in water?

    1 answer
    1. The solubility of this product has not been determined in water. However, external sources report that this material is slightly soluble in water at 1.8 mg/mL. Heating or sonication may be required. Note that the hydrate form, available as product C1251, is soluble in ethanol at 50 mg/mL. A similar rate would be expected for this material.

      Helpful?

  3. 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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