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
8.18714
Nicotinic acid
for synthesis
Synonym(e):
Nicotinic acid, Niacin, 3-Pyridinecarboxylic acid
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About This Item
Qualität
for synthesis
synthesis grade
Qualitätsniveau
Assay
≥99% (acidimetric)
Form
granular
Selbstzündungstemp.
>365 °C (Dust)
Wirksamkeit
>5000 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rat)
pH-Wert
2.7 (20 °C, 18 g/L in H2O)
mp (Schmelzpunkt)
236.6 °C
Übergangstemp.
flash point 193 °C
Dichte
1.47 g/cm3 at 20 °C
Schüttdichte
330 kg/m3
Lagertemp.
2-30°C
SMILES String
n1cc(ccc1)C(=O)[O-].[H+]
InChI
1S/C6H5NO2/c8-6(9)5-2-1-3-7-4-5/h1-4H,(H,8,9)
InChIKey
PVNIIMVLHYAWGP-UHFFFAOYSA-N
Verwandte Kategorien
Hinweis zur Analyse
Schmelzbereich (unterer Wert): ≥ 234 °C
Schmelzbereich (oberer Wert): ≤ 238 °C
Identität (IR): entspricht
Signalwort
Warning
H-Sätze
Gefahreneinstufungen
Eye Irrit. 2
Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 1
Flammpunkt (°F)
379.4 °F - closed cup
Flammpunkt (°C)
193 °C - closed cup
Analysenzertifikate (COA)
Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.
Besitzen Sie dieses Produkt bereits?
In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
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How can I determine the shelf life / expiration / retest date of this product?
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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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