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146358

Sigma-Aldrich

1-Ethyl-2-pyrrolidone

98%

Synonym(s):

NEP

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About This Item

Empirical Formula (Hill Notation):
C6H11NO
CAS Number:
2687-91-4
Molecular Weight:
113.16
Beilstein:
107971
EC Number:
220-250-6
MDL number:
MFCD00003199
UNSPSC Code:
12352100
PubChem Substance ID:
24848778
NACRES:
NA.22
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Quality Level

100

Assay

98%

form

liquid

refractive index

n20/D 1.465 (lit.)

bp

97 °C/20 mmHg (lit.)

density

0.992 g/mL at 25 °C (lit.)

SMILES string

CCN1CCCC1=O

InChI

1S/C6H11NO/c1-2-7-5-3-4-6(7)8/h2-5H2,1H3

InChI key

ZFPGARUNNKGOBB-UHFFFAOYSA-N

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General description

1-Ethyl-2-pyrrolidone is a transdermal absorption-enhancing compound and mechanism of its effect on multilammellar liposome of stratum corneum lipid has been studied[1].

Application

1-Ethyl-2-pyrrolidone was used to modify coir fiber (from Cocos nucifera) by photocuring[2].

Pictograms

Health hazardCorrosion
GHS08,GHS05

Signal Word

Danger

Hazard Statements

H318,H360D

Hazard Classifications

Eye Dam. 1 - Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

195.8 °F - Pensky-Martens closed cup

Flash Point(C)

91 °C - Pensky-Martens closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBL2676
STBK5568
STBK0377
STBJ0978
STBH7138

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Effect of Pretreatment with Ultraviolet Radiation on the Physicomechanical Properties of Photocured Coir (Cocos nucifera) Fiber with 1-Ethyl-2-Pyrrolidone (1-E-2-P) Monomer.
Khan MA, et al.
Polymer-Plastics Technology and Engineering, 45(4), 487-494 (2006)
Effect of penetration enhancers (pyrrolidone derivatives) on multilamellar liposomes of stratum corneum lipid: a study by UV spectroscopy and differential scanning calorimetry.
Kim C-K, et al.
International Journal of Pharmaceutics, 95(1), 43-50 (1993)
Francisco M Pinto et al.
Reproductive biology and endocrinology : RB&E, 8, 104-104 (2010-08-28)
We examined the presence and function of tachykinins and the tachykinin-degrading enzymes neprilysin (NEP) and neprilysin-2 (NEP2) in human spermatozoa. Freshly ejaculated semen was collected from forty-eight normozoospermic human donors. We analyzed the expression of substance P, neurokinin A, neurokinin
Małgorzata Sobocińska et al.
Amino acids, 51(8), 1201-1207 (2019-07-16)
Rat sialorphin (Gln-His-Asn-Pro-Arg) is a natural blocker of neprilysin (NEP) that belongs to the family of endogenous opioid peptide-degrading enzymes. Studies have confirmed the efficiency of sialorphin in blocking the activity of NEP, both in vitro and in vivo. It
Xiaolei Zhu et al.
Aging cell, 16(5), 1073-1082 (2017-08-05)
The accumulation and deposition of beta-amyloid (Aβ) is a key neuropathological hallmark of Alzheimer's disease (AD). Histone deacetylases (HDACs) are promising therapeutic targets for the treatment of AD, while the specific HDAC isoforms associated with cognitive improvement are poorly understood.
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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

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