195855
Precocene I
99%
Sinónimos:
7-Methoxy-2,2-dimethyl-3-chromene
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About This Item
Fórmula empírica (notación de Hill):
C12H14O2
Número de CAS:
Peso molecular:
190.24
Número CE:
Número MDL:
Código UNSPSC:
12352204
ID de la sustancia en PubChem:
NACRES:
NA.25
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Ensayo
99%
Formulario
liquid
índice de refracción
n20/D 1.56 (lit.)
bp
68 °C/0.1 mmHg (lit.)
densidad
1.052 g/mL at 25 °C (lit.)
aplicaciones
agriculture
environmental
cadena SMILES
COc1ccc2C=CC(C)(C)Oc2c1
InChI
1S/C12H14O2/c1-12(2)7-6-9-4-5-10(13-3)8-11(9)14-12/h4-8H,1-3H3
Clave InChI
CPTJXGLQLVPIGP-UHFFFAOYSA-N
Palabra de señalización
Warning
Frases de peligro
Clasificaciones de peligro
Acute Tox. 4 Oral
Código de clase de almacenamiento
10 - Combustible liquids
Clase de riesgo para el agua (WGK)
WGK 3
Punto de inflamabilidad (°F)
235.4 °F - closed cup
Punto de inflamabilidad (°C)
113 °C - closed cup
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Maryla Szczepanik et al.
Journal of agricultural and food chemistry, 53(15), 5905-5910 (2005-07-21)
Starting from precocenes I and II, four of their derivatives with a lactone moiety were obtained. The compounds have been assessed as antifeedants against several diverse insect species including the storage pests the confused flour beetle (Tribolium confusum Duv., larvae
Carlos A Gartner et al.
Biochemistry, 44(6), 1846-1855 (2005-02-09)
Cytochrome P450 3A4 is a drug-metabolizing enzyme of extraordinarily broad substrate specificity. This quality imparts upon the enzyme special importance in understanding its determinants of activity and substrate recognition. Limited successes in P450 3A4 active-site structure studies have been achieved
S J Chiou et al.
Insect biochemistry and molecular biology, 28(10), 801-808 (1998-11-10)
The cDNA coding for a Ser-protease-related protein (Scg-SPRP) was cloned from desert locust (Schistocerca gregaria) midgut. The derived amino acid sequence consists of 260 residues and shows strong sequence similarity to insect trypsin-like molecules. It is, however, likely that Scg-SPRP
A Fodor et al.
General and comparative endocrinology, 74(1), 32-44 (1989-04-01)
Fourteen 7-alkoxy-2,2-dimethychromenes were synthetized and studied in JH competition experiments: precocenes (Ps) PI and PII, and synthetic analogs (PAs) including (i) three with both antiallatal and P-like activities: 7-ethoxy-PII (7-EPII); 7-(prop-2-ynyloxy)-2,-2-dimethylchromene (PPI); and 6-methoxy-7-(prop-2-ynyloxy)-2,2-dimethylchromene (PPIII); (ii) six without antiallatal activity
K Sharma et al.
Phytochemical analysis : PCA, 12(4), 263-265 (2001-11-14)
The chromenes precocene I (7-methoxy-2,2-dimethylchromene) and precocene II (6,7-methoxy-2,2-dimethylchromene) extracted from Ageratum houstonianum and A. conyzoides have been analysed by reverse-phase high-performance liquid chromatography. Separation was achieved using a C18 column eluted with a linear gradient of acetonitrile and water.
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