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
162892
Purpald®
≥99%
Synonyme(s) :
4-Amino-3-hydrazino-5-mercapto-1,2,4-triazole, 4-Amino-5-hydrazino-1,2,4-triazole-3-thiol
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54,70 €
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About This Item
54,70 €
Produits recommandés
Niveau de qualité
Essai
≥99%
Forme
powder
Pf
228-230 °C (dec.) (lit.)
Solubilité
0.5 M NaOH: soluble 50 mg/mL, clear to slightly hazy (yellow to yellow brown or orange solution)
Groupe fonctionnel
hydrazine
Chaîne SMILES
NNc1nnc(S)n1N
InChI
1S/C2H6N6S/c3-5-1-6-7-2(9)8(1)4/h3-4H2,(H,5,6)(H,7,9)
Clé InChI
RDIMQHBOTMWMJA-UHFFFAOYSA-N
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Application
- Purpald® was used in purpald assay for determination of bacterial polysaccharides containing substituted or unsubstituted glycol in residues such as glycerol, ribitol, arabinitol, furanosyl galactose and sialic acid[1].
- It was used as chromogen during the determination of catalase activity in small tissue samples[2].
- It was used as reagent in determination of formaldehyde[3].
- It was used for derivatization of neutral monosaccharides during HPLC[4].
Informations légales
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Flam. Sol. 1
Code de la classe de stockage
4.1A - Other explosive hazardous materials
Classe de danger pour l'eau (WGK)
WGK 3
Équipement de protection individuelle
dust mask type N95 (US), Eyeshields, Gloves
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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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