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
CRM4M7340
Acetaldehyde-2,4-DNPH solution
certified reference material, ampule of 5 × 1 mL
Sinonimo/i:
Acetaldehyde-2,4-dinitrophenylhydrazone solution
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About This Item
Prodotti consigliati
Grado
certified reference material
TraceCERT®
Livello qualitativo
Nome Commerciale
TraceCERT®
CdA
current certificate can be downloaded
Caratteristiche
standard type calibration
Confezionamento
ampule of 5 × 1 mL
Concentrazione
1000 μg/mL in acetonitrile (as the aldehyde)
tecniche
HPLC: suitable
gas chromatography (GC): suitable
applicazioni
environmental
Formato
single component solution
Temperatura di conservazione
2-8°C
InChI
1S/C8H8N4O4/c1-2-9-10-7-4-3-6(11(13)14)5-8(7)12(15)16/h2-5,10H,1H3/b9-2+
ONBOQRNOMHHDFB-XNWCZRBMSA-N
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Applicazioni
Altre note
Note legali
Avvertenze
Danger
Indicazioni di pericolo
Classi di pericolo
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2
Codice della classe di stoccaggio
3 - Flammable liquids
Classe di pericolosità dell'acqua (WGK)
WGK 2
Punto d’infiammabilità (°F)
35.6 °F - closed cup
Punto d’infiammabilità (°C)
2.0 °C - closed cup
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Certificati d'analisi (COA)
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How can I determine the shelf life / expiration / retest date of this product?
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Utile?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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Can it be assumed that the Raw Material Purity of 97.0% should not be adjusted by the 995 µg/ml when determining dilution concentrations?
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The 97% purity has been factored into the certified concentration of 995 ug/mL.
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Why is the raw material purity indicated on the CoA if it is not intended to be used?
1 risposta-
The raw material purity is included for traceability to the raw material lot number also listed. In some cases, it can also explain any low-level impurities that a customer might see in their or our provided chromatogram. The goal is simply to provide as much characterization data as possible.
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