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
D199303
2,4-Dinitrophenylhydrazine
reagent grade, 97%
Synonym(s):
(2,4-dinitrophenyl)-hydrazine, DNPH
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About This Item
Recommended Products
grade
reagent grade
Quality Level
Assay
97%
contains
33% water (minimum)
mp
197-200 °C (lit.)
functional group
hydrazine
nitro
SMILES string
NNc1ccc(cc1[N+]([O-])=O)[N+]([O-])=O
InChI
1S/C6H6N4O4/c7-8-5-2-1-4(9(11)12)3-6(5)10(13)14/h1-3,8H,7H2
InChI key
HORQAOAYAYGIBM-UHFFFAOYSA-N
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General description
Application
Packaging
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Desen. Expl. 1
Supplementary Hazards
Storage Class Code
4.1A - Other explosive hazardous materials
WGK
WGK 3
Personal Protective Equipment
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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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Before use, is it necessary to dry off the water content in this reagent? If so, what would be the temperature and how long without triggering degradation of the reagent?
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This product is intentionally provided as a moist powder, with at least 33% water by weight. The material may be safely handled in the moistened state, but not as a dry powder. The recommendation would be to NOT dry off the water content.
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We have this product (D199303-500G) on our site and want to dispose of it . Can you please give us instructions on how to dispose the product safely ?
1 answer-
Please refer to section 13 of the Safety Data Sheet for disposal information. Consult with facility or municipal EHS authorities to assure proper guidelines are followed. See the link below to review the SDS:
https://www.sigmaaldrich.com/sds/aldrich/d199303Helpful?
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