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
51799
Putrescine
analytical standard
Synonym(s):
1,4-Diaminobutane, 1,4-Butanediamine, Putrescine, Tetramethylenediamine
About This Item
Recommended Products
grade
analytical standard
Quality Level
Assay
≥98.5% (GC)
shelf life
limited shelf life, expiry date on the label
expl. lim.
9.08 %
technique(s)
HPLC: suitable
gas chromatography (GC): suitable
refractive index
n20/D 1.457 (lit.)
bp
158-160 °C (lit.)
mp
25-28 °C (lit.)
density
0.877 g/mL at 25 °C (lit.)
application(s)
cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
format
neat
storage temp.
2-8°C
SMILES string
NCCCCN
InChI
1S/C4H12N2/c5-3-1-2-4-6/h1-6H2
InChI key
KIDHWZJUCRJVML-UHFFFAOYSA-N
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Other Notes
Recommended products
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
Storage Class Code
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 1
Flash Point(F)
113.0 °F - closed cup
Flash Point(C)
45 °C - closed cup
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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how accurate is the amount of 100mg putrescine 51799-100mg (analytical standard) Can I take the amount in vial unchecked for my standard solution (1mg/ml)? So I want to dissolve the entire content of the vial in 100ml.
1 answer-
For 100 milligrams, the amount per vial when packaged should be between 100-105 mg. Also, this product is somewhat volatile, so it is possible that some of it could evaporate over time. In short, this product is not provided as a quantitative standard; there is not necessarily exactly 100 milligrams per vial. But it is guaranteed to meet the specifications for appearance, purity and identity: https://www.sigmaaldrich.com/specification-sheets/370/087/51799-BULK.pdf
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