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Safety Information

195855

Sigma-Aldrich

Precocene I

99%

Synonym(s):

7-Methoxy-2,2-dimethyl-3-chromene

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About This Item

Empirical Formula (Hill Notation):
C12H14O2
CAS Number:
17598-02-6
Molecular Weight:
190.24
EC Number:
241-566-0
MDL number:
MFCD00006818
UNSPSC Code:
12352204
PubChem Substance ID:
57647800
NACRES:
NA.25

Assay

99%

form

liquid

refractive index

n20/D 1.56 (lit.)

bp

68 °C/0.1 mmHg (lit.)

density

1.052 g/mL at 25 °C (lit.)

application(s)

agriculture
environmental

SMILES string

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

InChI key

CPTJXGLQLVPIGP-UHFFFAOYSA-N

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

195855-VAR:
195855-BULK:
195855-5G:
195855-1G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCN9044
MKBW0460V
MKBT3955V
MKBS0582V
MKBG9597

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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
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
Nataly E Gruntenko et al.
The Journal of experimental biology, 222(Pt 4) (2019-01-27)
Maternally inherited intracellular bacteria Wolbachia cause both parasitic and mutualistic effects on their numerous insect hosts, including manipulating the host reproductive system in order to increase the bacteria spreading in a host population, and increasing the host fitness. Here, we
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
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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