The melting range of this material is 25-28 °C. This product is supplied as either solid or liquid.
推薦產品
等級
analytical standard
品質等級
化驗
≥98.5% (GC)
儲存期限
limited shelf life, expiry date on the label
expl. lim.
9.08 %
技術
HPLC: suitable
gas chromatography (GC): suitable
折射率
n20/D 1.457 (lit.)
bp
158-160 °C (lit.)
mp
25-28 °C (lit.)
密度
0.877 g/mL at 25 °C (lit.)
應用
cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
形式
neat
儲存溫度
2-8°C
SMILES 字串
NCCCCN
InChI
1S/C4H12N2/c5-3-1-2-4-6/h1-6H2
InChI 密鑰
KIDHWZJUCRJVML-UHFFFAOYSA-N
尋找類似的產品？ 前往 產品比較指南
其他說明
有关合适的仪器技术的更多信息，请参阅产品′的检验报告。想要获得更多支持，请联系技术服务部。
推薦產品
在我们的NMR在线平台ChemisTwin®上可以找到本品对应的数字化标准物质。您可使用ChemisTwin®上的数字等效品鉴定您的样品并进行定量分析（使用数字化外标）。可查看该物质的NMR谱图，只需点击几次鼠标，就能进行在线样品比对。欢迎点击了解更多，开启免费试用之旅。
訊號詞
Danger
危險分類
Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
儲存類別代碼
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
水污染物質分類（WGK）
WGK 1
閃點（°F）
113.0 °F - closed cup
閃點（°C）
45 °C - closed cup
客戶也查看了
The biosynthesis of spermidine and spermine from putrescine and methionine
Tabor H, et al.
The Journal of Biological Chemistry, 233, 907-914 (1958)
A comparison of the TLC-densitometry and HPLC method for the determination of biogenic amines in fish and fishery products
Shakila J.R, et al.
Food Chemistry, 75, 255-259 (2001)
Advances and Technical Standards in Neurosurgery, Volume 24 (2012)
Stefan Biastoff et al.
Phytochemistry, 70(15-16), 1708-1718 (2009-08-05)
Putrescine N-methyltransferase (PMT) catalyses S-adenosylmethionine (SAM) dependent methylation of the diamine putrescine. The product N-methylputrescine is the first specific metabolite on the route to nicotine, tropane, and nortropane alkaloids. PMT cDNA sequences were cloned from tobacco species and other Solanaceae
Barry J Shelp et al.
Plant science : an international journal of experimental plant biology, 193-194, 130-135 (2012-07-17)
4-Aminobutyrate (GABA) accumulates in various plant parts, including bulky fruits such as apples, in response to abiotic stress. It is generally believed that the GABA is derived from glutamate, although a contribution from polyamines is possible. Putrescine, but not spermidine
-
Does this come in liquid form or solid form?
1 answer-
Helpful?
-
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
-
-
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
Helpful?
-
Active Filters
我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.
聯絡技術服務
