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P51400

Sigma-Aldrich

Propiolic acid

95%

Synonyme(s) :

Acetylenecarboxylic acid, Propynoic acid

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About This Item

Formule linéaire :
HC≡CCOOH
Numéro CAS:
471-25-0
Poids moléculaire :
70.05
Beilstein:
878176
Numéro CE :
207-437-8
Numéro MDL:
MFCD00004360
Code UNSPSC :
12352100
ID de substance PubChem :
24898598
Nomenclature NACRES :
NA.22
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Niveau de qualité

200

Essai

95%

Impuretés

≤6.0% acetic acid

Indice de réfraction

n20/D 1.431 (lit.)

pb

102 °C/200 mmHg (lit.)

Pf

16-18 °C (lit.)

Densité

1.138 g/mL at 25 °C (lit.)

Température de stockage

2-8°C

Chaîne SMILES 

OC(=O)C#C

InChI

1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5)

Clé InChI

UORVCLMRJXCDCP-UHFFFAOYSA-N

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Application

Reagent employed in the synthesis of transition metal complexes,[1] haloalkyl propiolates,[2][3] and halopropenoates.[4]

Pictogrammes

FlameSkull and crossbonesCorrosion
GHS02,GHS06,GHS05

Mention d'avertissement

Danger

Mentions de danger

H226,H301,H310,H314

Classification des risques

Acute Tox. 2 Dermal - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

136.4 °F - closed cup

Point d'éclair (°C)

58 °C - closed cup

Équipement de protection individuelle

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificats d'analyse (COA)

Lot/Batch Number
STBL0584
STBK7647
STBK1697
0000111256
STBJ9377

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Tetrahedron, 49, 4229-4229 (1993)
The Journal of Organic Chemistry, 57, 709-709 (1992)
Journal of Organometallic Chemistry, 456, 271-271 (1993)
Tina N Grant et al.
Organic letters, 10(18), 3985-3988 (2008-08-19)
Readily available five- and six-membered lactones and N-sulfonyllactams undergo efficient addition of t-butyl propiolate, and the resulting adducts undergo cycloisomerization to six- and seven-membered cyclic ethers or amines in the presence of pyridinium acetate. The ring expansion process occurs in
Shili Xu et al.
Proceedings of the National Academy of Sciences of the United States of America, 109(40), 16348-16353 (2012-09-19)
Protein disulfide isomerase (PDI), an endoplasmic reticulum chaperone protein, catalyzes disulfide bond breakage, formation, and rearrangement. The effect of PDI inhibition on ovarian cancer progression is not yet clear, and there is a need for potent, selective, and safe small-molecule
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Questions

1–2 of 2 Questions  

  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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