Pular para o conteúdo
Merck
Todas as fotos(1)

Documentos

422363

Sigma-Aldrich

Diketene

contains copper sulfate as stabilizer

Faça loginpara ver os preços organizacionais e de contrato
Todas as fotos(1)

About This Item

Fórmula empírica (Notação de Hill):
C4H4O2
Número CAS:
674-82-8
Peso molecular:
84.07
Beilstein:
104541
Número CE:
211-617-1
Número MDL:
MFCD00005173
Código UNSPSC:
12352100
ID de substância PubChem:
24866429

densidade de vapor

2.9 (vs air)

pressão de vapor

7.9 mmHg ( 20 °C)

forma

liquid

temperatura de autoignição

590 °F

contém

copper sulfate as stabilizer

índice de refração

n20/D 1.439 (lit.)

pb

69-70 °C/100 mmHg (lit.)

densidade

1.09 g/mL at 25 °C (lit.)

temperatura de armazenamento

2-8°C

cadeia de caracteres SMILES

C=C1CC(=O)O1

InChI

1S/C4H4O2/c1-3-2-4(5)6-3/h1-2H2

chave InChI

WASQWSOJHCZDFK-UHFFFAOYSA-N

Procurando produtos similares? Visita Guia de comparação de produtos

Aplicação

Employed in the convenient preparation of acetoacetic acid derivatives and heterocycles.

Pictogramas

FlameSkull and crossbones
GHS02,GHS06

Palavra indicadora

Danger

Frases de perigo

H226,H302,H331

Classificações de perigo

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Flam. Liq. 3

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

93.2 °F - closed cup

Ponto de fulgor (°C)

34 °C - closed cup

Equipamento de proteção individual

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

Certificados de análise (COA)

Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.

Já possui este produto?

Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.

Visite a Biblioteca de Documentos

K Tanizawa et al.
Chemical & pharmaceutical bulletin, 37(3), 824-825 (1989-03-01)
Compounds having a structural analogy with diketene have been synthesized and their potencies as beta-lactamase inhibitors have been studied. Among six compounds so far tested, alpha-phenyl-beta-benzylidene-3-propanolide was shown to be an irreversible inhibitor of the enzyme. The availability of simple
R Scandurra et al.
FEBS letters, 231(1), 192-196 (1988-04-11)
Horse liver phosphopantothenoylcysteine decarboxylase (EC 4.1.1.36) is rapidly inactivated by N-acetoacetylation with diketene following a pseudo-first-order kinetics: the presence of substrate quantitatively protects against this inactivation. Histidine photo-oxidation with methylene blue or rose bengal brings about the total loss of
P Roch et al.
Biochimica et biophysica acta, 983(2), 193-198 (1989-08-07)
The hemolytic activity exhibited by the coelomic fluid of the Annelid Eisenia fetida andrei is mediated by two lipoproteins of mass 40 and 45 kDa, each of them capable of hemolysis. Such an activity is not inhibited by zymosan, inulin
A Fotedar et al.
Clinical and experimental immunology, 49(2), 317-324 (1982-08-01)
Two acetoacetylated derivatives of Mycobacterium leprae with variable hapten groups and a conjugate with tetanus toxoid were prepared. These were tested as antigens along with unmodified M. leprae in the leucocyte migration inhibition response of leucocytes from clinically, bacteriologically and
Nazariy T Pokhodylo et al.
Journal of combinatorial chemistry, 11(3), 481-485 (2009-04-23)
A convenient synthetic protocol was elaborated for creation of combinatorial libraries of 1-(R(1)-phenyl)-5-methyl-N-R(2)-1H-1,2,3-triazole-4-carboxamides. As starting materials, commercially available or readily prepared azides, amines, and diketene were selected for the reaction which has proceeded in a one-pot system with high yields
Exibir todos os documentos relacionados

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica